A cylindrical pail that has the base area of 9 pi inches squared and a height of 10 inches. One friend bought a pyramid mold with a square base with edge length of 4 inches and height of 7 inches. The other friend bought a cone with a radius of 2.5 inches and the height of six inches. What is the volume of these three objects?

Answers

Answer 1

Answer:

cylinder — 90π in³pyramid — 37 1/3 in³cone — 12.5π in³

Step-by-step explanation:

The volume of a cylinder is given by ...

  V = Bh . . . . . where B is the base area and h is the height

The volume of a pyramid or cone is given by ...

  V = (1/3)Bh . . . . . where B is the base area and h is the height

The area of a square of side length s is ...

  A = s²

The area of a circle of radius r is ...

  A = πr²

___

Using these formulas, the volumes of these objects are ...

  cylinder: (9π in²)(10 in) = 90π in³

  square pyramid: (1/3)(4 in)²(7 in) = 37 1/3 in³

  cone: (1/3)(π(2.5 in)²)(6 in) = 12.5π in³ . . . . slightly larger than the pyramid

Answer 2

Answer:

12.5

Step-by-step explanation:


Related Questions

If the angle that the sun makes with the side of a building is 75°, and the distance from the top of the building to the tip of its shadow is 25 feet, what is the length of its shadow? 144.89 feet 12.84 feet 48.3 feet 24.15 feet

Answers

Answer:

  24.15 feet

Step-by-step explanation:

The shadow is opposite the specified angle, and the distance from its tip to the building edge is the hypotenuse of the relevant right triangle. Then the applicable relation is ...

  Sin = Opposite/Hypotenuse

  (25 ft)sin(75°) = Opposite = shadow length

  24.15 ft = shadow length

Simplify the product using FOIL (2x-7)(5x+5)

Answers

Answer:

10x^2-25x-35

Step-by-step explanation:

FOIL means first, outer, inner, and last.

The first term of each pair is 2x and 5x.

The outer term of each pair is 2x and 5.

The inner term of each pairs are -7 and 5x.

The last term of each is -7 and 5.

Now we just have to multiply the terms I pairs above:

First:   (2x)(5x)=10x^2

Outer: (2x)(5)=10x

Inner: (-7)(5x)=-35x

Last:   (-7)(5)=-35

------------------------------Add the terms:

10x^2-25x-35

The school band is scheduled to march in the annual parade, but the band's starting point is changed the day before the parade. The band director calls three band members. Each band member calls three other band members. Then these band members each call three members. How many band members, including the band director, are notified of the new starting point?

Question 8 options:

20 members

12 members

13 members

40 members

Answers

Answer:

There are 40 band members including the band director that were notified of the new starting point

Step-by-step explanation:

The diagram below shows the band director at the top, then the three band members he called, then the next band members, and so forth.

Answer: i got 19

Step-by-step explanation:

Select the correct answer.
What is the product of

Answers

Answer:

29

Step-by-step explanation:

I'm going to write both of this as improper fractions.

That is the mixed fraction [tex]a\frac{b}{c}[/tex] can be written as the improper equivalent fraction of [tex]\frac{ca+b}{c}[/tex] assuming [tex]a[/tex] is positive.

So we are going to write [tex]-3\frac{1}{3}[/tex] as [tex]-\frac{3(3)+1}{3}[/tex].

Simplifying that gives us [tex]-\frac{10}{3}[/tex].

Now for [tex]-8\frac{7}{10}=-\frac{10(8)+7}{10}=-\fraC{87}{10}[/tex].

Now we are ready to find the product which just means multiply:

[tex]\frac{-10}{3} \cdot \frac{-87}{10}[/tex]

To multiply fractions you just multiply straight across on top and straight across on bottom unless you see a common factor on and bottom to cancel (and I do; I see 10)

[tex]\frac{-1}{3} \cdot \frac{-87}{1}[/tex]

[tex]\frac{87}{3}[/tex]

Negative times negative is positive.

Anyways time to write 87/3 as a mixed fraction.

How many 3's are in 87?  29  with no remainder

Answer:

29

Step-by-step explanation:

its close... ish

A biology class conducts a bird count every week during the semester. Using the number of species counted each​ week, a student finds a​ 95% confidence interval of​ (16.34,18.69) for the mean number of species counted. Knowing that species have to be whole​ numbers, the student reports that​ 95% of the bird counts saw​ 16, 17, or 18 species. Comment on the​ student's report.

Answers

Answer:

A student finds a​ 95% confidence interval of​ (16.34,18.69) for the mean number of species counted. This is a valid interval because the mean number of species or any population mean does not necessarily have to be a whole number, as stated by the student.

This given confidence interval of (16.34,18.69) helps us to simply estimate the mean species counted.

Find the measure of angle Z

Answers

Answer:

∠Z ≈ 12°

Step-by-step explanation:

Using the Sine Rule in ΔXYZ

[tex]\frac{x}{sinx}[/tex] = [tex]\frac{z}{sinz}[/tex], that is

[tex]\frac{48}{sin96}[/tex] = [tex]\frac{10}{sinz}[/tex] ( cross- multiply )

48 × sinZ = 10 × sin96° ( divide both sides by 48 )

sinZ = [tex]\frac{10sin96}{48}[/tex]

Z = [tex]sin^{-1}[/tex] ( [tex]\frac{10sin96}{48}[/tex] ) ≈ 12°

Type the correct answer in the box. Use numerals instead of words. For this problem, a non-integer answer should be entered as a fraction in simplest form using / as the fraction bar. Malik randomly picked two numbers from 1 to 9 (including 1 and 9). The same number could be picked more than once. The first of the two numbers he picks is odd and less than 5. What is the probability that the sum of the two numbers Malik picks is less than 5, given that the first number is odd and less than 5?

Answers

Answer:

P (sum of two numbers is < 5) =2/9

Step-by-step explanation:

There are two numbers that can be picked such that the first number odd and less than 5:  1 and 3.

Then, the numbers that can be drawn with these numbers should be from: 1, 2, 3, 4, 5, 6, 7, 8 or 9.

The number of total possibilities = 18

Out of these, the following are the four possible options to have a sum which is less than 5 and 1:

1 and 1

1  and 2

1 and 3

3 and 1

So P (sum of two numbers is < 5) = [tex]\frac{4}{18}[/tex] = 2/9

Answer:

Step-by-step explanation:

2/9 is right because i just took it and got a 5/5

S=4T-7 T= what is the answer please

Answers

Answer:

(S+7)/4 = T

Step-by-step explanation:

S=4T-7

We want to solve to T

Add 7 to each side

S+7=4T-7+7

S+7 = 4T

Divide each side by 4

(S+7)/4 = 4T/4

(S+7)/4 = T

Write an equation of the line below.

Answers

Answer:

[tex]\large\boxed{y=4x+3}[/tex]

Step-by-step explanation:

The slope-intercept form of an equation of aline:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

The formula of a slope:

[tex]m=\dfraxc{y_2-y_1}{x_2-x_1}[/tex]

From the graph we have the points:

(-2, -5)

y-intercept (0, 3) → b = 3

Calculate the slope:

[tex]m=\dfrac{3-(-5)}{0-(-2)}=\dfrac{8}{2}=4[/tex]

Put the value of the slope and the y-intercept to the equation of a line:

[tex]y=4x+3[/tex]

The equation of the line through (-2, -5) and (0, 3) is y = 4x + 3, obtained using the point-slope form with the calculated slope and one of the given points.

To find the equation of the line passing through the given coordinates (-2, -5) and (0, 3), we can use the point-slope form of a linear equation: y - y1 = m(x - x1), where (x1, y1) are the coordinates of a point on the line, and m is the slope.

First, calculate the slope (m) using the given coordinates:

m = (y2 - y1) / (x2 - x1)

m = (3 - (-5)) / (0 - (-2)) = 8 / 2 = 4

Now, choose one of the points, let's use (-2, -5), and substitute the values into the point-slope form:

y - (-5) = 4(x - (-2))

y + 5 = 4(x + 2)

Simplify the equation:

y + 5 = 4x + 8

Isolate y:

y = 4x + 3

Therefore, the equation of the line passing through the points (-2, -5) and (0, 3) is y = 4x + 3.

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Ben has 30 pencils in a box. Each of the pencils is one of 5 different colors, and there are 6 pencils of each color. If Ben selects pencils one at a time from the box without being able to see the pencils, what is the maximum number of pencils that he must select in order to ensure that he selects at least 2 pencils of each color?

Answers

Answer:

The maximum number of pencils that he must select in order to ensure that he selects at least 2 pencils of each color is:

                              26

Step-by-step explanation:

Since, Ben has 30 pencils in a box.

Each of the pencils is one of 5 different colors, and there are 6 pencils of each color.

This means that if he draw 24 pencils then there may be a worst case that all these pencils must be of 4 of the 5 colors and none of the pencil of the 5th color is drawn.

This means that in order to confirm that he has  at least 2 pencils of each color he need to draw 2 more pencils.

This means that he need to draw: 24+2=26 pencils.

Final answer:

To ensure Ben draws at least two pencils of each of the 5 colors from a box of 30, he must draw a maximum of 10 pencils.

Explanation:

Ben has a total of 30 pencils that are composed of 5 different colors. This implies that there are 6 pencils of each color. When drawing pencils one by one without knowledge of their color, he must draw a single pencil of each color first to ensure that he doesn't get two of the same color immediately. That would account for a total of 5 pencils drawn (one of each color).

Next, to guarantee that he has at least two of each color, he would need to draw another round of 5 pencils (one of each color). This adds up to a total of 10 pencils drawn. However, from this point onward, whatever pencil Ben draws would inevitably be a second pencil of a particular color. Thus, to ensure that he gets at least two pencils of each color, the maximum number of pencils Ben must draw is 10 pencils.

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9. Nick has desigied a diamond-shaped kite as shown below. The measures of so me sides of the kite, are marked in the
figure. Find the value of x (JUSTIFY)

Answers

Answer:

[tex]x=\frac{10\sqrt{6}}{7}\ in[/tex]

Step-by-step explanation:

step 1

In the right triangle DOC

Find the measure of side DO

Applying the Pythagoras Theorem

[tex]DC^{2}=DO^{2}+OC^{2}[/tex]

substitute the given values

[tex]7^{2}=DO^{2}+5^{2}[/tex]

[tex]DO^{2}=7^{2}-5^{2}[/tex]

[tex]DO^{2}=49-25[/tex]

[tex]DO^{2}=24[/tex]

[tex]DO=2\sqrt{6}\ in[/tex]

step 2

In the right triangle DOC

Find the sine of angle ∠ODC

sin(∠ODC)=OC/DC

substitute

[tex]sin(ODC)=5/7[/tex] -----> equation A

step 3

In the right triangle DOP

Find the sine of angle ∠ODP

sin(∠ODP)=OP/DO

substitute

[tex]sin(ODP)=x/2\sqrt{6}[/tex] -----> equation B

step 4

Find the value of x

In this problem

∠ODC=∠ODP

so

equate equation A and equation B

[tex]5/7=x/2\sqrt{6}[/tex]

[tex]x=\frac{10\sqrt{6}}{7}\ in[/tex]

In the triangle below, the sec X is x/z

Answers

Answer:

false

Step-by-step explanation:

It's false. Entirely. No hesitation.

The sec(X) = 1 / Cos(X)

Cos(x) = y / z

1/cos(x) = 1//y/z

1/cos(X) = 1/1 * z/y

1/cos(X) = z/y

sec(X) = z/y

Yea it's false

I know I'm late but I hope it helped a little haha

In ΔDEF, DE = 5 and m∠D = 55.

Find FE to the nearest tenth.

Answers

Answer:

FE=7.1 units

Step-by-step explanation:

we know that

In the right triangle DEF

The tangent of angle of 55 degrees is equal to divide the opposite side to the angle of 55 degrees (FE) by the adjacent side to angle of 55 degrees (DE)

so

tan(55°)=FE/DE

FE=(DE)tan(55°)

substitute the given value

FE=(5)tan(55°)

FE=7.1 units

Tyrese's sister is 41 inches tall. A ride at the amusement park states that riders must be at least 52 inches tall to ride. Which statements describe how much taller Tyrese's sister must be to ride? Check all that apply. At least 11 inches no more than 11 inches a maximum of 11 inches a minimum of 11 inches fewer than 11 inches at most 11 inches

Answers

Answer:

See below.

Step-by-step explanation:

52 inches - 41 inches = 11 inches

She needs to be at least 11 inches taller to be at least 52 inches tall.

Statements that describe how much taller she must be:

(The correct answers are in bold and checked with the square root symbol, .)

at least 11 inches

no more than 11 inches

a maximum of 11 inches

a minimum of 11 inches

fewer than 11 inches

at most 11 inches

Answer:

Step-by-step explanation:

at least 11 inches

a minimum of 11 inches

What are mutually exclusive events?
Events in which event#1 must happen before event #2
Events in which event#1 and event#2 must happen at the same time
Events in which event#1 must happen after event#2
Events in which neither event is dependent upon the other

Answers

Answer:

The correct answer would be option D, Events in which neither event is dependent upon the other.

Step-by-step explanation:

Mutually exclusive events are the events which cannot occur at the same time. If there are two events, then in mutually exclusive situation, both events can not happen at the same time. One event will happen at a time. Mutually exclusive events are also called disjoint. Both events are not dependent upon one another. The occurrence of one event would not change the occurrence of the other event. The most appropriate and suitable example of mutually exclusive events is the tossing of a coin. Either tails will come or heads. Both events can't happen at the same time, and also not both events are dependent upon each other.

Answer:

Events in which neither event is dependent upon the other

Step-by-step explanation:

Events that are independent and cannot happen at the same time.

Which equations can be used to solve for acceleration? Check all that apply.
t =
vf = at – vi
a =
vi = vf – at
v =
vf = at + vi
a =

Answers

Answer:

vi = vf – atvf = at + vi

Step-by-step explanation:

Any equation in which a proper relation with acceleration is shown can be solved for acceleration. (The first equation improperly represents the relationship between vf, vi, and at.)

a = (vf -vi)/t

Final answer:

The equations that can be used to solve for acceleration are a = (vf - vi) / t

Explanation:

The equations that can be used to solve for acceleration are:

a = (vf - vi) / ta = (vf - vi) / t

These equations can be derived from the kinematic equations of motion, specifically the equation v = at + vi, where v is the final velocity, a is the acceleration, t is the time, and vi is the initial velocity.

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Harry bought a package of blueberries to put in his muffins. The package he bought had 64 blueberries in side. He plan in making 17 muffins with 6 blueberries in each. How many more blueberries will he need?

Answers

Answer:

He will need 38 more blueberries

Step-by-step explanation:

If each cupcake will have 6 blueberries and he wants to make 17 cupcakes he will need a total of 102 blueberries (found by multiplying 17 and 6 together). If he already has 64 he will just need to buy 38 more (found by subtracting 64 from 102). I hope this helped, if not then I apologize.

My clock chimes two times 15 minutes after the hour, four times 30 minutes after the hour and six times 45 minutes after the hour. The clock also chimes eight times on each hour in addition to chiming the number of times equal to the hour. (So at 2:00 p.m., the clock chimes $8 + 2 = 10$ times.) Starting at 12:05 a.m., how many times does the clock chime in a 24-hour period?

Answers

Answer:

612 times does the clock chime

Step-by-step explanation:

Given data

two times 15 minutes after the hour

four times 30 minutes after the hour

six times 45 minutes after the hour

clock chimes 8 + 2 = 10 times

to find out

how many times does the clock chime in a 24-hour period

solution

we can say clock chimes from 12:05 - 1:05  is for this 1 hour

2 +4+6+8 = 20 + 1

and clock chimes from 1:05 - 2:05  is for this 1 hour is 20 +2

and we know for 24 hours clock chimes  is 20 × 24 i.e

= 480 + 2 × ( 1 +2 + ...  +11 )     .....................1

we know

2 × ( 1 +2 + ...  +11 ) will be  = 2 × (n) × (n+1) / 2

here n is 11 so

= 2 × (n) × (n+1) / 2

= 2 × (11) × (11+1) / 2

= 132

so now put this in equation 1

we get

clock chime in a 24-hour period = 480 + 132

clock chime in a 24-hour period = 612

so 612 times does the clock chime in a 24-hour period

Answer:

636

Step-by-step explanation:

Look at the picture for explanation:)

Find the area under the standard normal probability distribution between the following pairs of z-scores. a. z=0 and z=3.00 e. z=-3.00 and z=0 b. z=0 and z=1.00 f. z=-1.00 and z=0 c. z=0 and z=2.00 g. z=negative 1.19 and z=0 d. z=0 and z=0.61 h. z=-0.61 and z=0

Answers

Answer:

a) 0.49865

b) 0.34134

c) 0.47725

d) 0.22907

e) 0.49865

f) 0.34134

g) 0.38298

h) 0.22907

Step-by-step explanation:

* Lets explain how to solve the problem

a) P(0 < z < 3)

- From the normal distribution table of z

∵ P(0 < z < 3) = 0.99865 - 0.50000 = 0.49865

P(0 < z < 3) = 0.49865

b) P(0 < z < 1)

- From the normal distribution table of z

∵ P(0 < z < 1) = 0.84134 - 0.50000 = 0.34134

P(0 < z < 1) = 0.34134

c) P(0 < z < 2)

- From the normal distribution table of z

∵ P(0 < z < 2) = 0.97725 - 0.50000 = 0.47725

∴ P(0 < z < 2) = 0.47725

d) P(0 < z < 0.61)

- From the normal distribution table of z

∵ P(0 < z < 0.61) = 0.72907 - 0.50000 = 0.22907

∴ P(0 < z < 0.61) = 0.22907

e) P(-3 < z < 0)

- From the normal distribution table of z

∵ P(-3 < z < 0) = 0.50000 - 0.00135 = 0.49865

∴ P(-3 < z < 0) = 0.49865

f) P(-1 < z < 0)

- From the normal distribution table of z

∵ P(-1 < z < 0) = 0.50000 - 0.15866 = 0.34134

P(-1 < z < 0) = 0.34134

g) P(-1.19 < z < 0)

- From the normal distribution table of z

∵ P(-1.19 < z < 0) = 0.50000 - 0.11702 = 0.38298

P(-1.19 < z < 0) = 0.38298

h) P(-0.61 < z < 0)

- From the normal distribution table of z

∵ P(-0.61 < z < 0) = 0.50000 - 0.27093 = 0.22907

P(-0.61 < z < 0) = 0.22907

Final answer:

To find the area under the standard normal distribution between two z-scores, use a z-table to find the areas to the left of each z-score and subtract or add the areas, depending on their positions relative to the mean. The resulting value represents the probability of a value falling within that z-score range.

Explanation:

When working with the standard normal distribution, the area under the curve between two z-scores represents the probability that a value will fall within that range. The mean for the standard normal distribution is 0, and the standard deviation is 1, creating a symmetrical curve. Each z-score corresponds to a specific area underneath the curve to its left. To find the area between two z-scores, you subtract the area to the left of the lower z-score from the area to the left of the higher z-score, if they are both on the same side of the mean, or simply add them if they're on opposite sides.

Let's say you're given two z-scores, such as z = -0.40 and z = 1.5. To find the area between them, you would look up the corresponding area to the left of each z-score using a Z-table. For z = -0.40, the area to the left is 0.3446, and for z = 1.5, it's 0.9332. Subtracting these two areas (if the lower z-score is negative and the higher one is positive, they are on opposite sides of the mean, so we add them instead of subtracting), you get 0.9332 + 0.3446 = 1.2778. However, this sum is above 1 because we added the two symmetric halves of the normal curve; hence to get the desired area, we subtract this sum from 1, or 1 - 1.2778 = -0.2778. The absolute value gives us the area between the z-scores, which is 0.2778 (or 27.78%). The empirical rule, or the 68-95-99.7 rule, also provides a quick estimate for these areas but with z-scores of -1, 1, -2, 2, -3 and 3.

To find the areas for the specific pairs of z-scores you mentioned, follow the same process using a Z-table or statistical software. Remember, the area under the curve can be looked up for each z-score, and the differences or sums (as needed) tell you the area between the z-scores, representing the probability that a value falls within that range.

The height of a rectangle is multiplied by 4. Which of the following describes the effect of this change on the area?

The area is multiplied by 16.
The area is multiplied by 8.
The area is multiplied by 4.
The area is multiplied by 2.

Answers

Answer:

Area is multiplied by 4.

Step-by-step explanation:

The area of rectangle with dimensions h and l are h*l.

If we multiply the height,h, by 4 we get the dimensions are 4h and l, and so the new area would be (4h)*l or 4hl or 4(hl).  So the area would be 4 times as much as it was before.

Answer:

Choice 3. The area is multiplied by 4.

What is the area of the sector bound by the center of the circle and arc CD in the circle below?

Circle A is shown with a radius labeled 8 feet and a central angle marked 35 degrees.

a
9.42 ft2

b
19.54 ft2

c
34.89 ft2

d
88.31 ft2

Answers

Answer:

b. 19.54 ft²

Step-by-step explanation:

Measure of the central angle made by the arc CD = 35 degrees

Measure of radius of circle = r = 8 feet

Area of the sector is calculated as:

[tex]A=\frac{1}{2}r^{2} \theta[/tex]

Where the angle [tex]\theta[/tex] is in radians.

35 degrees in radian would be = [tex]35 \times \frac{\pi}{180} = \frac{7 \pi}{36}[/tex]

Using the values in the formula, we get:

[tex]Area = \frac{1}{2} \times (8)^{2} \times (\frac{7 \pi}{36} )\\\\ Area = 19.54[/tex]

Thus, the area of the sector bounded by arc CD would be 19.54 ft²

solve for
2(-6y+29)-4y=-6

Answers

Answer:

y = 4

Step-by-step explanation:

2 ( - 6 y + 29 ) - 4 y = - 6

⇒ Expand brackets

-12 y + 58 - 4 y = -6

Simplify

-16 y + 58 = -6

⇒ -58 from to isolate - 16 y

-16 y = - 64

⇒ ÷ -16 from both sides to isolate y

y = 4

What is the next term in the sequence? 7, 18, 29, 40, . . .

Answers

Answer:

first Let's find the common difference

an=a1+(n-1)d

let's take A2 that is 18

so 18=7+(2-1)d

18=7+d

d=11

so the next term is going to be 40+11 that is 51


What is the x-intercept of the line 4x-8y = 16? Anybody can help me with this?

Answers

Answer:

x-intercept = 4 → (4, 0)

Step-by-step explanation:

x-intercept is for y = 0.

4x - 8y = 16

Put y = 0 to the equation, and solve for x:

4x - 8(0) = 16

4x - 0 = 16

4x = 16          divide both sides by 4

x = 4

Final answer:

The x-intercept of a line is where it crosses the x-axis. By setting y to 0 in the equation 4x-8y=16 and solving for x, we find that the x-intercept is 4.

Explanation:

The x-intercept of a line is the point at which it crosses the x-axis. This is determined by setting the equation equal to zero and solving for x. In the line equation 4x-8y=16, to find the x-intercept, we set y equal to 0 and solve for x. The equation becomes 4x-8*0=16, which simplifies to 4x=16. Dividing each side of the equation by 4, we find that x=4. So, the x-intercept of the line 4x-8y=16 is 4.

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In the game of roulette, a player can place a $10 bet on the number 6 and have a 1/38 probability of winning. If the metal ball lands on 6, the player gets to keep the $10 paid to play the game and the player is awarded an additional $350. Otherwise, the player is awarded nothing and the casino takes the player's $10. What is the expected value of the game to the player? If you played the game 1000 times, how much would you expect to lose?

The expected value is $___

The player would expect to lose about $__

Answers

Answer:

The expected value is $ - 0.53 (negative means losing)

If you the player played the game 1,000 times, the player would expect to lose $530.

Explanation:

The expected value is calculated as the net result of the sum of the products of every probability times each value, less the cost.

That is: expected value = [ ∑ (probability × value)] - cost

For the game of roulette you have:

cost of the bet: $10

probability of wining: 1/38

value of wining: $ 350 + $ 10 = $ 360

probability of losing: 1 - 1/38 = 37/38

value of losing: 0

Expected value = $ 360 × 1/38 + $ 0 × 37/38 - $10 = $9.47 - $10 = - $ 0.53

Since, each time you play is independent of the others plays,  if you played 1,000 times, you would expect to lose 1,000 times 0.53, i.e 1,000 × 0.53 = $ 530.

Final answer:

Based on the probabilities and payoffs involved, the expected value of this roulette game is -$0.263 per game, meaning the player loses approximately $0.263 with each game. If played 1000 times, the player would expect to lose about $263.

Explanation:

In the game of roulette, the expected value represents an average of all possible outcomes, weighted by their corresponding probabilities. When the metal ball lands on 6, the net gain is $350 (the $10 bet returned plus the $350 winnings). However, when any other number is rolled, the player loses their $10 bet. Hence, the expected value for any single play of the game can be calculated by multiplying each outcome by its probability, and then adding these results together.

The expected value is calculated with the formula:

Expected Value = (Probability of Winning * Gain from Winning) + (Probability of Losing * Loss from Losing)

So, with a 1/38 chance of winning $350 and a 37/38 chance of losing $10, we get:

Expected Value = [(1/38) * $350] + [(37/38) * -$10]

Therefore, the expected value is -$0.263. This means, on average, you will lose approximately $0.263 each time you play the game. If you play the game 1000 times, you would expect to lose about $263.

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Figure ABCD is a parallelogram.
BE
(4p + 12)
36°
What is the value of p?​

Answers

Answer:

p=6

Step-by-step explanation:

4p+12=36

(subtract 12)

4p=24

(divide by 4)

p=6

Answer: 6

Step-by-step explanation:

edge 2023

which of the following circles lie completely in the fourth quadrant

Answers

Answer:

C.(x-5)²+(x+5)=9

D (x-9)²+(y+9)²=16

Step-by-step explanation:

Use a graph tool to visualize the circle.See attached

You can also see that  in the options

C. circle has center (5,-5) and radius 3 which will form in 4th quadrant

D. Circle has center (9,-9) and radius 4 which will still form in 4th quadrant

Need help with a math question

Answers

Answer:

S

Step-by-step explanation:

If the dilation is of magnitude 3, then the lenghts of all segments must be thriced.

The center of dilation is at point P. If you have to find image of point Q, you should connect points Q and P (pre-image point and center of dilation) and thrice this segment.

So,

PQ→PS,

because PQ=1,

PS=PQ+QR+RS=1+1+1=3

Hence, the image point is point S

What are the zeroes of f(x) = x2 - x-2?
Ox=-2, 1
Ox=2, -1
Ox=-2, -1
O x = 2,1

Answers

Answer:

Simplifying

0x =-2, 1

0 * x =-2.1

Apply rule () *a = 0

0=-2.1

Step-by-step explanation:

Therefore, the zeroes of the function [tex]\( f(x) = x^2 - x - 2 \)[/tex] are [tex]\( x = 2 \)[/tex] and [tex]\( x = -1 \).[/tex]

To find the zeroes of the quadratic function [tex]\( f(x) = x^2 - x - 2 \),[/tex] we need to solve for [tex]\( x \)[/tex] when [tex]\( f(x) = 0 \)[/tex]. This means we need to find the values of [tex]\( x \)[/tex]that make the function equal to zero.

We can solve this quadratic equation by factoring or using the quadratic formula. Let's use the quadratic formula:

For a quadratic equation in the form [tex]\( ax^2 + bx + c = 0 \)[/tex], the solutions [tex]\( x \)[/tex] are given by:

[tex]\[ x = \frac{{-b \pm \sqrt{{b^2 - 4ac}}}}{{2a}} \][/tex]

For our equation [tex]\( f(x) = x^2 - x - 2 \)[/tex], we have [tex]\( a = 1 \), \( b = -1 \)[/tex], and [tex]\( c = -2 \)[/tex]. Substituting these values into the quadratic formula:

[tex]\[ x = \frac{{-(-1) \pm \sqrt{{(-1)^2 - 4(1)(-2)}}}}{{2(1)}} \][/tex]

[tex]\[ x = \frac{{1 \pm \sqrt{{1 + 8}}}}{2} \][/tex]

[tex]\[ x = \frac{{1 \pm \sqrt{9}}}{2} \][/tex]

[tex]\[ x = \frac{{1 \pm 3}}{2} \][/tex]

So, the solutions are:

[tex]\[ x_1 = \frac{{1 + 3}}{2} = 2 \][/tex]

[tex]\[ x_2 = \frac{{1 - 3}}{2} = -1 \][/tex]

Which linear inequality is represented by the graph?

y > 2/3x – 2

y < 2/3x + 2

y > 2/3x + 1

y < 2/3x – 1

Answers

Answer:

y < 2/3 x - 1 is the linear inequality which represented by the graph ⇒ 4th answer

Step-by-step explanation:

* Lets explain how to solve the problem

- At first lets find the equation of the line

∵ The line passes through points (3 , 1) and (-3 , -3)

∵ The form of the equation is y = mx + c, where m is the slope of the

  line and c is the y-intercept

- The rule of the slope of any line passes through points (x1 , y1) and

  (x2 , y2) is m = (y2 - y1)/(x2 - x1)

- The y-intercept means the intersection between the line and the

  y-axis at point (0 , c)

∵ (3 , 1) and (-3 , -3) are two points on the line

- Let (x1 , y1) is (3 , 1) and (x2 , y2) is (-3 , -3)

∴ The slope of the line m = (-3 - 1)/(-3 - 3) = -4/-6 = 2/3

∵ The line intersects the y-axis at point (0 , -1)

∴ c = -1

∵ The equation of the line is y = mx + c

∴ The equation of the line is y = 2/3 x + -1

∴ The equation of the line is y = 2/3 x - 1

- If the shaded part is over the line then the sign of inequality is ≥ or >

- If the shaded part is under the line then the sign of inequality is ≤ or <

- If the line represented by solid line (not dashed), then the sign of

 inequality is ≥ or ≤

- If the line represented by dashed line (not solid), then the sign of

 inequality is > or <

∵ The shading part is under the line

∵ The line is dashed

∴ The sign of the inequality is <

∴ y < 2/3 x - 1

* y < 2/3 x - 1 is the linear inequality which represented by the graph

The linear inequality represented by the graph is y < (2/3) * x - 1

To solve the problem, we can follow these steps:

Find the equation of the line that passes through the points (3, 1) and (-3, -3). The equation of a line is in the form y = mx + c, where "m" is the slope and "c" is the y-intercept.

Use the slope formula to calculate the slope (m) of the line. The slope formula is given by m = (y2 - y1) / (x2 - x1), where (x1, y1) is (3, 1) and (x2, y2) is (-3, -3).

Calculate the slope (m):

m = (-3 - 1) / (-3 - 3) = -4 / -6 = 2/3

Determine the y-intercept (c), which is the point where the line intersects the y-axis. In this case, it's at point (0, c).

Since the line passes through (3, 1), we can use this point to find the y-intercept:

1 = (2/3) * 3 + c

1 = 2 + c

c = -1

Now that we have the slope (m) and the y-intercept (c), we can write the equation of the line:

y = (2/3) * x - 1

Determine the direction of the shading in the inequality. If the shaded region is under the line, the sign of the inequality is "<."

Determine the style of the line on the graph. If the line is dashed, the sign of the inequality is also "<."

Combine the information to form the linear inequality:

y < (2/3) * x - 1

So, the linear inequality represented by the graph is:

y < (2/3) * x - 1

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