Does the point “is on the circle shown? Explain.

Answer:

  10^2 . . . . see below for additional information or versions of the answer(s)

Step-by-step explanation:

You seem to want 10^exponent, where exponent is an even single digit, not zero.

We choose exponent = 2, so your expression is ...

  10^2

__

There are several versions of expanded form. One uses exponents. In that form, the expression above is the expanded form.

Another uses multipliers of 1, 10, 100, 1000, and so on. In that form, the expression expands as ...

  10^2 = 1×100

Another expanded form uses individual digits of the expanded form with others set to zero

  10^2 = 100

The standard form is ...

  10^2 = 100.

_____

We suppose your exponential expression might have another multiplier, such as 2.98:

To write an exponential expression with a base of 10 and an even exponent between 1 and 10, we can use 10^2 as an example. By multiplying the base by itself the number of times indicated by the exponent, we find that the expanded form is 10 × 10 = 100. Therefore, the standard form of the expression is 100.

a) The exponential expression with a base of 10 and an even number between 1 and 10 as the exponent would be:

102

b) To write the expression in expanded form, we would multiply the base (10) by itself the number of times indicated by the exponent (2):

10 × 10 = 100

The standard form of the expression would be 100.

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Answer:

  Obtuse

Step-by-step explanation:

The sum of squares of the short sides is 130, so is less than the square of the long side. The long side (12) is longer than it would need to be for a right triangle, so the largest angle is bigger than 90°.

The triangle is obtuse.

_____

A triangle solver app or calculator can confirm this. Note angle C is about 96°, an obtuse angle.

Answer:

3

Step-by-step explanation:

Answer:

The area of the two-dimensional cross section is 30 feet²

Step-by-step explanation:

* Lets explain what is the right triangular prism

- The right triangular prism has five faces

- Two right triangular bases (cross sections)

- Three rectangular faces

- Its volume V = area of its base × its height

- Its surface area SA = the sum of the areas of the five faces

- The area of the triangular bases = 1/2 × base of Δ × height of Δ

* Lets solve the problem

- ABCFED is a right triangular prism

- Its two parallel bases are ABC and DEF

- Its bases are congruent right triangles

∴ AB = DE , BC = EF , AC = DF

∵ AB = 5 feet

∴ DE = 5 feet

- The two-dimensional cross section that is parallel to face ABC

  is the face DEF

∵ Δ DEF is right triangle , where angle E is a right angle

∴ DE and EF are the base and the height of Δ DEF

∵ DE = 5 feet ⇒ proved

∵ EF = 12 feet ⇒ given

∴ The area of Δ DEF = 1/2 × 5 × 12 = 30 feet²

∵ The two-dimensional cross section that is parallel to face ABC

  is the face DEF

* The area of the two-dimensional cross section is 30 feet²

Answer:

The area of the cross section is 30 feet².

Step-by-step explanation:

The area is 30, because you want to multiply 5 and 12, then multiply that by 1/2 to find the area of a right triangle.

Answer:

On a number line, -4 is located to the right of -5

Step-by-step explanation:

Answer:

On a number line, -4 is located to the right of -5

Step-by-step explanation:

The value of the missing angle x° in the diagram is: 63°

By the concept of opposite angles, we know that opposite angles are defined as the angles directly opposite each other where two lines cross.

Thus:

∠ACB = 63°

Similarly, we can say that:

x° = 63°

This is because angle x is also an opposite angles to ∠ACB from the given diagram

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Answer:

73.5 kJ

Step-by-step explanation:

Mass of butane = 185 g

Heat of vaporization for butane = 23.1 kJ/mol

Molar mass of butane = 58.12 g/mol

Number of moles of butane = [tex]\frac{\text{Mass of butane}}{\text{Molar mass of butane}}=\frac{185}{58.12}=3.18\ moles[/tex]

Energy required for burning 185 g of butane = 3.18×23.1 = 73.5 kJ

∴ Energy is required to vaporize 185 g of butane at its boiling point is 73.5 kJ

Answer:

The correct option is D.

Step-by-step explanation:

In a data set we have three quartiles and the second quartile is known as median.

First quartile Q₁ divides the data set in 1:3. It means [tex]\frac{1}{4}[/tex] of the data set are less than or equal to Q₁ and [tex]\frac{3}{4}[/tex] of the data set are more than or equal to Q₁.

Second quartile Q₂ divides the data set in 1:1. It means [tex]\frac{1}{2}[/tex] of the data values are less than or equal to Q₂ and [tex]\frac{1}{2}[/tex] of the data values are more than or equal to Q₂.

Third quartile Q₃ divides the data set in 3:1. It means [tex]\frac{3}{4}[/tex] of the data values are less than or equal to Q₃ and [tex]\frac{1}{4}[/tex] of the data values are more than or equal to Q₃.

It is given that first quartile of a data set is 2.5. It means [tex]\frac{1}{4}[/tex] of the data set are less than or equal to 2.5 and [tex]\frac{3}{4}[/tex] of the data set are more than or equal to 2.5.

Therefore the correct option is D.

Answer:

D) one-fourth of the values are less than or equal to 2.5, and three-fourths of the values are greater than or equal to 2.5.

Step-by-step explanation:

The square root property seems to be another name for completing the square

x^2 + 5x + 6 = 0

We move the constant to the other side

x^2 + 5x = -6

We square half the linear coefficient and add that to both sides

x^2 + 5x + (5/2)^2 = -6 + 25/4

Now the left side is a perfect square,

(x + 5/2)^2 = 1/4

Here's the square root property part, we take the square root of both sides, remembering the ±

x + 5/2 = ± 1/2

x = -5/2 ± 1/2

Answer: x = -3 or x=-2

We check by plugging in these values to the original equation, and they work.

------

x^2 + 6x = 16

Again we add half the linear coefficient, squared, to both sides

x^2 + 6x + 3^2 = 16 + 9

(x + 3)^2 = 25

Here comes the square root property, taking the square root of both sides:

x + 3 = ±5

x = -3 ± 5

x = 2 or x = -8

Again we check by substitution, and they both work

Answer: x = 2 or x = -8

Answer:

[tex]\large\boxed{\bold{Q1.}\ \overline{WX},\ \overline{XY},\ \overline{YW}}\\\boxed{\bold{Q2.}\ \angle P,\ \angle Q,\ \angle R}[/tex]

Step-by-step explanation:

The longest side is opposite the largest angle, and the shortest is opposite the smallest one.

The largest angle lies opposite the longest side, and the smallest is opposite the smallest side.

Q1.

Calculate m∠Y.

We know: Measures of angles of triangle add up to 180°.

m∠Y + m∠W + m∠X = 180°

Substitute given angles:

m∠Y + 51° + 90° = 180°

m∠Y + 141° = 180°      substitute 141° from both sides

m∠Y = 39°

39° < 51° < 90° → XW < XY < YW

Q2.

RQ < PR < PQ → ∠P < ∠Q < ∠R

Answer:

The correct option is a rotation 180° clockwise about the origin followed by a reflection across the line y = x

Step-by-step explanation:

The correct option is missing from the given options:

Option A states that a reflection across the line y = x followed by a reflection across the line yaxis

These transformation map triangle ABC to triangle A'B'C' . So this option is in correct.

Option B states that a reflection across the x-axis followed by a reflection across the y-axis

This option is also incorrect because these transformation map triangle ABC to triangle A'B'C'.

Thus the correct option is a rotation 180° clockwise about the origin followed by a reflection across the line y = x ....

Answer:

A

Step-by-step explanation:

For this case we must build a quotient that, when multiplied by the divisor, eliminates the terms of the dividend until reaching the remainder.

It must be fulfilled that:

Dividend = Quotient * Divider + Remainder

Looking at the attached image we have that the quotient is given by:

[tex]x ^ 2 + 7x + 2[/tex]

Answer:

Option C

The probability is:

              [tex]\dfrac{9}{38}[/tex]

We need to use the Baye's theorem in order to find the probability .

Jar 1:  has 1 white ball and 4 black balls.

This means that the probability of white ball is: 1/5

( since there are a total of 1+4=5 balls out of which 1 is white)

Jar 2: has 2 white balls and 1 black ball.

This means that the probability of white ball is: 2/3

( since there are a total of 2+1=3 balls out of which 2 are white)

Jar 3 : has 3 white balls and 2 black balls.

This means that the probability of white ball is: 3/5

( since there are a total of 3+2=5 balls out of which 3 are white)

Hence, the probability the ball was drawn from Jar 1​, given that the ball is white is:

Ratio of drawing jar 1 and a white ball from it to the sum of choosing each jar and a white ball from it.

i.e.

[tex]=\dfrac{\dfrac{1}{2}\times \dfrac{1}{5}}{\dfrac{1}{2}\times \dfrac{1}{5}+\dfrac{1}{3}\times \dfrac{2}{3}+\dfrac{1}{6}\times \dfrac{3}{5}}\\\\\\=\dfrac{\dfrac{1}{10}}{\dfrac{1}{10}+\dfrac{2}{9}+\dfrac{1}{10}}\\\\\\=\dfrac{\dfrac{1}{10}}{\dfrac{2}{10}+\dfrac{2}{9}}\\\\\\=\dfrac{\dfrac{1}{10}}{\dfrac{38}{90}}\\\\\\=\dfrac{9}{38}[/tex]

The probability that a drawn white ball came from Jar 1, given the stated conditions, is approximately 0.286 or 28.6%.

This problem can be solved using the concept of conditional probability. Let's define the events as follows:

The question requires us to find P(J1|W), that is, the probability that the ball came from Jar 1 given that it is white. Using Bayes' theorem, we can write this as:

P(J1|W) = [P(W|J1) * P(J1)] / P(W). Here, P(W|J1) is the probability of drawing a white ball from Jar 1, P(J1) is the probability of choosing Jar 1, and P(W) is the total probability of drawing a white ball.

We can find these probabilities as:

Substituting these values into the Bayes' theorem, we find P(J1|W) = [(1/5) * (1/2)] / 0.35 = 0.286 approximately. Therefore, there is approximately a 28.6% chance that the drawn white ball came from Jar 1.

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Answer:

r=1

Step-by-step explanation:

x^2 +y^2 =1

We know that x^2 + y^2 = r^2

Replacing that in the equation

r^2 =1

Taking the square root of each side

sqrt(r^2) = sqrt(1)

r =1

The other way is to replace x with r cos theta   and y with r sin theta

(r cos theta)^2 + (r sin theta) ^2 =1

r^2 cos^2 theta + r^2 sin^2 theta = 1

Factor out r^2

r^2 (cos^2 theta + sin^2 theta) =1

We know cos^2 theta + sin^2 theta =1

r^2 (1) =1

r^2 =1

Answer:

  r = 1

Step-by-step explanation:

The usual translation between rectangular coordinates and polar coordinates is ...

Substituting these into your equation, you get ...

  (r·cos(θ))² + (r·sin(θ))² = 1

  r²(cos(θ)² +sin(θ)²) = 1 . . . . . . factor out r²

  r²(1) = 1 . . . . . . . . . . . . . . . . . . use the trig identity cos(θ)² +sin(θ)² = 1

  r = 1 . . . . . . . take the square root

_____

It's that simple. Just as x=1 describes a line in Cartesian coordinates, r=1 describes a circle in polar coordinates.

Answer:

Step-by-step explanation:

Solving the density equation for mass, we get ...

  D = m/V

  m = DV . . . . . multiply by volume

Substituting the volume formula gives ...

  m = D(4/3π)r³

Alloy A

Substituting D = 7.5 gives ...

  m = 7.5(4/3)πr³

  m = 10πr³ . . . . . simplify

__

Alloy B

Substituting D = 8.5 gives ...

  m = 8.5(4/3π)r³

  m = (34π/3)r³ . . . . . simplify

Answer:

1) x = 6.6.

2) x = 6.1.

Step-by-step explanation:

1) In this triangle, the hypotenuse is given, which is 8 units, and the angle is given, which is 35 degrees. The base is unknown. To find the base, following ratio will be used:

cos θ = Base/Hypotenuse.

cos 35 = x/8.

x = 8*cos 35.

x = 6.6 units (to the nearest tenth)!!!

2) In this triangle, the base is given by 12, and the angle is given by 27 degrees. The perpendicular is unknown. To find the perpendicular in this case, tangent formula will be used:

tan θ = Perpendicular/Base

tan 27 = x/12.

x = 12*tan 27.

x = 6.1 units (to the nearest tenth)!!!

Answer:

1).  x = 6.55 units

2).x = 2.55 units

Step-by-step explanation:

1). To find the value of x

From the given figure 1 we can see a right angled triangle with hypotenuse is 8 units

Cos 35 = Adjacent side/Hypotenuse

 = x/8

x = 8 * Cos 35

 = 8 * 0.8196

 = 6.55

2). To find the value of x

From the figure we can write,

Tan 27 = Opposite side/Adjacent side

 = x/12

x = 12 * Tan 27

 = 12 * 0.509

 = 2.55 units

Answer:

  20

Step-by-step explanation:

The sum of (actual - predicted) is ...

  {55, 150, 325, 510, 780, 990} - {40, 150, 300, 500, 800, 1,000}

  = total({15, 0, 25, 10, -20, -10}) = 20

The sum of residuals is 20.

[tex]\text{lcm}(a,b)=\dfrac{|a\cdot b|}{\text{gcd}(a,b)}\\\\378=\dfrac{|a\cdot b|}{9}\\\\|a\cdot b|=42\\\\a\cdot b=-42 \vee a\cdot b=42[/tex]

So, the least value is -42

Final answer:

The probability that Alice wins the coin-flipping game is 2/3, or approximately 66.67%. This is calculated by summing the infinite geometric series of her winning probabilities over multiple rounds.

Explanation:

The student has asked about the probability that Alice wins a coin-flipping game against Bob where Alice needs a heads to win, and Bob requires a tails to win. Each has a turn to flip the coin if the previous person does not win.

Probability is the measure of the likelihood that an event will occur. To calculate Alice's probability of winning, we consider that she has the first opportunity to win with a 50% chance (heads). If she does not get heads, Bob has a turn, also with a 50% chance (tails), but this does not directly affect Alice's probability. What affects Alice's chances are the subsequent rounds where she will have another opportunity to flip the coin if Bob does not win on his turn.

To calculate her total probability of winning, we can sum up the probabilities of her winning on the first turn, plus the probability of her winning after each complete set of turns:

Alice's probability of winning on the first turn is simply 0.5 (50% for getting heads).

If both fail their first attempt, the game starts over with the same conditions, so the probability of Alice winning on the second set of turns is (0.5 x 0.5 x 0.5), since both need to fail their first flip (0.5 x 0.5) and then Alice must succeed on her second try (x 0.5).

This pattern continues indefinitely, with each complete set of turns reducing Alice's additional chance of victory by a factor of (0.5 x 0.5).

Thus, the sum of this geometric series gives us the total probability of Alice winning:

P(Alice) = 0.5 + ([tex](0.5^3[/tex]x[tex]0.5^5)[/tex] + ... = 0.5 / (1 - (0.5^2)) = 0.5 / (0.75) = 2/3

Alice has a 2/3 (approximately 66.67%) chance of winning the game.

Answer:

The correct option is D.

Step-by-step explanation:

Given information:

Total number of teams = 3

Total number of members in each team = 3

A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5.

It means the points for 1st, 2nd, 3rd, 4th, and 5th place are 5, 4, 3, 2 and 1 respectively.

Total points that can earned = 5+4+3+2+1=15

There were no ties, disqualifications, or withdrawals.

No team earned more than 6 points.

To minimize the score of a team, we have to maximize the score of the other two teams.

Let two teams earn there maximum score. i.e. 6. So the score of third team is

[tex]15-6-6=3[/tex]

The least possible score a team could have earned is 3. Therefore the correct option is D.

Answer:

  1/250 W/m² or 0.004 W/m² or 4 mW/m²

Step-by-step explanation:

The cargo worker is (50 m)/(1 m) = 50 times the reference distance. The intensity varies as the inverse of the square of the distance, so will be ...

  (1/50)²×(10 W/m²) = 10/2500 W/m² = 1/250 W/m²

This might be more conveniently written as 4 mW/m².

Answer:

1/15 or 6.67%.

Step-by-step explanation:

Empirical Probability =  number of red haired people  in the last 60 people  / 60.

= 4/60

= 1/15.

The empirical probability of the next customer at the department store having red hair is approximately 0.0667 or 6.67%, based on the hair color distribution of the previous 60 customers.

The student is asking to determine the empirical probability that the next person to come to the cash register has red hair. Empirical probability is based on actual experiment results and calculated by the number of successful trials divided by the total number of trials.

In this case, the total number of people who went to the cash register is 60. Out of these, 4 people had red hair. Hence, the empirical probability of the next customer having red hair would be 4 out of 60 or 0.0667 when rounded to four decimal places. So, there's approximately a 6.67% chance that the next person to visit the cash register will have red hair assuming that the hair color distribution remains consistent.

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Answer:

Correct arrangement of equation of displacement to find a is as follows;

1-  Vt - d = 1/2 a t^2 (^ represents exponent i.e. t square as given in equation)

2- 2(Vt - d ) = a t^2

3- a = 2(Vt - d )/ t^2   (keep in mind, 2(Vt - d) whole divided by  t^2)

Step-by-step explanation:

1-  In the first equation, Vt is taken to the left side of the equation (keep in mind, original equation of displacement used for reference as given in question) and multiplied by -1 on the both sides of the equation.

2- In the second equation, 2 is multiplied on the both sides.

3- Multiply t^2 on both sides of the equation, We will get a in correct arrangement, which is required to find.

Answer:

  A.  1 real root and 2 complex roots

Step-by-step explanation:

The one sign change among the coefficients tells you there is one positive real root. The rule of signs is inconclusive regarding the number of negative real roots. A graph shows there are none, so there are ...

  1 real root and 2 complex roots

The given polynomial F(X)=x3+4x2-16 can have either 3 real roots and 0 complex roots if the discriminant is greater than zero, or 1 real root and 2 complex roots if the discriminant is less than zero. The standard cubic formulas or numeric methods can be used to solve it.

The subject of your question is the roots of a cubic polynomial, a topic in mathematics. The given polynomial is not a quadratic equation, so the quadratic formula is not directly applicable. The roots of the polynomial F(X)=x3+4x2-16 can be complex or real numbers depending on the discriminant of the polynomial. If the discriminant of the polynomial is greater than zero, then there are 3 real roots and 0 complex roots, and if it is less than zero, there are 1 real root and 2 complex roots. Standard cubic formulas or numeric methods can be used to solve it, which is a more advanced topic usually covered in high school or college level algebra.

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Answer:

C.

Step-by-step explanation:

This can be written as

[tex]log_w\frac{(x^2-6)^4}{(x^2+8)^\frac{1}{3} }[/tex]

when you divide log you should subtract the terms

[tex]log_w(x^2-6)^4-log_w(x^2+8)^\frac{1}{3}[/tex]

Rewrite powers in the terms as below

[tex]4log_w(x^2-6)-\frac{1}{3} log_w(x^2+8)[/tex]

Answer:

C. [tex]4\cdot log_w(x^2-6)-\frac{1}{3}\cdot log_w((x^2+8)[/tex]

Step-by-step explanation:

We have been given an expression [tex]log_w\frac{(x^2-6)^4}{\sqrt[3]{x^2+8}}[/tex]. We are asked to choose the equivalent expression to our given expression.  

Upon applying log rule [tex]log_c(\frac{a}{b})=log_c(a)-log_c(b)[/tex], we will get:

[tex]log_w(x^2-6)^4-log_w(\sqrt[3]{x^2+8})[/tex]

Using exponent rule [tex]\sqrt[n]{x}=x^{\frac{1}{n}}[/tex], we will get:

[tex]log_w(x^2-6)^4-log_w((x^2+8)^{\frac{1}{3}}[/tex]

Now, we will apply rule [tex]log_c(a^b)=b\cdot log_c(a)[/tex] to simplify our expression as:

[tex]4\cdot log_w(x^2-6)-\frac{1}{3}\cdot log_w((x^2+8)[/tex]

Therefore, option C is the correct choice.

Answer:

=20s³+50s²+32s+6

Step-by-step explanation:

We multiply each of the term in the initial expression by the the second expression as follows:

4s(5s²+10s+3)+2(5s²+10s+3)

=20s³+40s²+12s+10s²+20s+6

Collect like terms together.

=20s³+50s²+32s+6

Answer: It's the same thing as multiplication.

Step-by-step explanation:

Answer:

  C. None of the Above

Step-by-step explanation:

None of the given monomials have all of 4 and x and y as factors.

___

They can all be divided, but the result will be a fraction--which is probably not what is intended. None can be divided "evenly" by 4xy.

Answer:

The ratio of the reaming apples to peaches is 3 : 4

Step-by-step explanation:

* Lets solve the problem

- There are 300 apples and peaches

- The ratio of the number of apples to the number of peaches is 7 : 8

- To find the the numbers of apples and peaches add the terms of the

  ratio and then divide the total number of apples and peaches by this

  sum and then multiply each terms of the ratio by this quotient

∵ The ratio of apples to peaches = 7 : 8

∴ apple : peach : sum

      7     :     8    :    15

       ?    :       ?    :    300

∴ The number of apples = (300 ÷ 15) × 7 = 20 × 7 = 140 apples

∴ The number of peaches = (300 ÷ 15) × 8 = 20 × 8 = 160 peaches

- 50 apples and 40 peaches are sold

∴ The remaining number of apples = 140 - 50 = 90 apples

∴ The remaining numbers of peaches = 160 - 40 = 120 peaches

- To find the ratio simplify the numbers to its simplest form

∵ There are 90 apples and 120 peaches

∴ apple : peach

      90  :   120      ⇒ divided both by 10

∴       9  :    12       ⇒ divide both by 3

∴       3  :     4    

∴ The ratio of the reaming apples to peaches is 3 : 4

Answer: (-1.5, -0.5)

Step-by-step explanation:

Answer:

128/3 cubic inches

Step-by-step explanation:

The formula for pyramid volume is (1/3)lwh. Using this we can calculate that the volume of each shape is 320/3 cubic inches and 192/3 inches. When these are subtracted, it reads 128/3 cubic inches.

Answer:

The answer is 42.67 cubic inches.

Step-by-step explanation:

Both the models are in the shape of a square pyramid.

The length of the sides of the base for both the models is 8 inches.

Amy’s model is 5 inches tall and Alex’s model is 3 inches tall.

The volume is given by :

[tex]a^{2}\frac{h}{3}[/tex]

So, Amy's figure volume is :

[tex]8^{2}\times \frac{5}{3}[/tex] = 106.67 cubic inches

And Alex's figure volume is:

[tex]8^{2}\times \frac{3}{3}[/tex] = 64 cubic inches

So, the difference between volumes is = [tex]106.66-64=42.67[/tex] cubic inches.

The answer is 42.67 cubic inches.