The image below is a triangle drawn inside a circle with center O:
8 inches
5 inches
4 inches
Which of the following expressions shows the area, in square inches, of the circle?
(TT = 3.14)
3.14.42
3.14 . 52
3.14.5
3.14 22

Answers

Answer 1

Answer:

  area ≈ 24π

Step-by-step explanation:

We have solved this problem two ways:

Using a drawing program that writes the formula of the circumscribing circle, so gives the value of r^2.Using rarely-seen formulas for the area of a triangle and for the area of its circumscribing circle.

__

Drawing

A drawing of the figure (below) can help you find the radius of circle O. It is about 4.89 inches, so the area of circle O is about ...

  area = πr^2 = π(4.89 in)^2 ≈ 23.9π ≈ 24π . . . .square inches

__

Formulas

There is an interesting relationship between the area of the triangle and the radius of the circumscribing circle:

  r = (abc)/(4A) . . . . . where a, b, c are the triangle side lengths, and A is the triangle area

Heron's formula can tell us the area of the triangle from the side lengths:

  A = √(s(s-a)(s-b)(s-c)) . . . . where s = (a+b+c)/2

For the given triangle with side lengths 4, 5, and 8 (inches), the area can be found as ...

  s = (4+5+8)/2 = 8.5

  A = √(8.5·4.5·3.5·0.5) = √66.9375 ≈ 8.1815 . . . square inches

Then the radius of the circle is ...

  r = (4·5·8)/(4·8.1815) = 4.889 . . . inches

The area of the circle is then ...

  Circle O area = πr^2 = π(4.889 in)^2 = 23.9π in^2

__

The closest answer choice is 3.14×22.

The Image Below Is A Triangle Drawn Inside A Circle With Center O:8 Inches5 Inches4 InchesWhich Of The

Related Questions

2. Find the distance between -18 and 8
using the ruler postulate.

Answers

Step-by-step explanation:

1 1-5 Measuring Segments Find the distance between two points using the Ruler Postulate Determine the length of a segment using the Segment Addition Postulate.

Answer:

26.

Step-by-step explanation:

We are asked to find the distance between -18 and 8  using the ruler postulate.

The ruler postulate states that the distance between two pints on a ruler is the absolute value of the difference between the numbers shown on ruler.

So the distance between -18 and 8 would be [tex]|-18-8|=|-26|=26[/tex].

Therefore, the distance between -18 and 8 is 26.

Solve and graph the absolute value inequality: |2x + 4| > 14.

number line with open circles on negative 9 and 5, shading going in the opposite directions.
number line with open circles on negative 9 and 5, shading in between.
number line with closed circles on negative 9 and 5, shading going in the opposite directions.
a number line with open circles on negative 5 and 5, shading going in the opposite directions.

Answers

Answer:

"number line with open circles on negative 9 and 5, shading going in the opposite directions."

Step-by-step explanation:

Your inequality doesn't include an equal sign so there will be no closed holes. It will only be open holes.

|u|>14 means that the number u has to be greater than 14 or less than -14.  These numbers I describe just now all have a distance greater than 14 from 0.

So |u|>14 implies u>14 or u<-14.

But we are solving |2x+4|>14 so this implies we have 2x+4>14 or 2x+4<-14.

2x+4>14

Subtract 4 on both sides:

2x    >10

Divide both sides by 2:

x      >5

2x+4<-14

Subtract 4 on both sides:

2x    <-18

Divide both sides by 2:

x      <-9

So our solution is x>5 or x<-9.

Graphing!

~~~~~~~O                                         O~~~~~~~~

-----------(-9)---------------------------------(5)---------------

So we shaded to the right of 5 because our inequality says x is bigger than 5.

We shaded to the left of -9 because our inequality says x is less than -9.

What is the sum of the lengths of the two trails?

Answers

I will need more information! Let me know when you include the trail lengths.
Final answer:

The correct option is B.

The sum of the lengths of the diagonals in the given parallelogram is 12 miles. This value was derived by first identifying the values of the segments in relation to 'y', calculating for 'y', then using the property of the parallelogram where the diagonals bisect each other.

Explanation:

To solve for this geometry problem involving a parallelogram, we need to equate the given values and solve for 'y'. The values given stipulate that DE = EB; therefore, we get:

y+2 = 3y-4

y-3y = -4-2

-2y = -6

y = 3

Solving for y, we obtain y = 3.

Next is to solve AE, which is given as CE = AE and substituting the calculated value of y, we get:

AE = 2y - 3 = 2(3) - 3 = 3 miles.

In this parallelogram, it is a property that the diagonals bisect each other. Hence, DE = EB, and AE = EC. Therefore, AC equals 2 * AE = 2 * 3 miles = 6 miles.

Similarly, DB equals 2 * DE = 2 * 3 miles = 6 miles.

Thus, the sum of the lengths of the two trails, AC and BD, is 6 miles + 6 miles = 12 miles.

Learn more about Parallelogram Diagonal Lengths here:

https://brainly.com/question/32934618

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The complete question is given below:

The parallelogram shown represents a map of the boundaries of a natural preserve. Walking trails run from points A to C and from points B to D. The measurements shown represent miles.

What is the sum of the lengths of the two trails?

A. 6 miles

B. 12 miles

C. 16 miles

D. 36 miles

Which of the following sets of points are ALL on the line:
2x + 2y = 8
A(-2,2)
(-1,3)
(3,-1)

B(4,0)
(-2,4)
(3,0)

C(2,-2)
(3,-1)
(0,4)


D(1,3)
(2, 2)
(3, 1)

Answers

Answer:

(1, 3)

(2, 2)

(3, 1)

Step-by-step explanation:

Substitute x and y with the numbers given

2(1) + 2(3) = 8

2(2) + 2(2) = 8

2(3) + 2(1) = 8

Answer

(1, 3)

(2, 2)

(3, 1)

based only on the information given in the diagram which congruence theorems or postulates could be given as reason why ABC=DEF

Answers

Answer:

HL

SAS

SSS

Step-by-step explanation:

Since these are right triangles, and you have the two hypotenuses are congruent to each other and two legs that are also congruent to each other, then HL can be applied.

For HA to work we must have been given something else about one of those angle (besides the 90 degree one).

Since you have two corresponding sides that are congruent, then the 90 degree angles in both are congruent, and then the sides right after that 90 degree angle are also congruent to each other, so SAS can be applied.

We can't use AAS.  We only know something about one angle per each triangle due to the markers.

LA? Needed another angle besides the 90 degree one.

All three corresponding sides are congruent. The markers tell us this. So we can apply SSS.

Answer:

HL

SAS

SSS

Step-by-step explanation:

Write the domain and range of the function using interval notation.

Answers

Answer:

Domain [-5,3)

Range [0,2]

Step-by-step explanation:

Domain is where the function exists for the x's.

The graph starts at x=-5 and ends at x=3. The graph includes what happened at x=-5 but not at x=3. Since there are no breaks in the graph, the graph exists for x values bigger that or equal to -5 but less than 3.

The domain is [-5,3) in interval notation.

Range is very similar except it is for the y values. So the graph starts at y=0 and stops at y=2. It includes something happening at both and there are no breaks between y=0 and y=2.

The range in interval notation is [0,2].

The values are (x = -5) and (x = 3). But the graph includes what happened at (x = -5) but not (x = 3), therefore, the domain is [-5,0). The values are (y = 0) and (y = 2) and the graph includes what happened at (y = 0) and (y = 2), therefore, the range is [0,2].

Domain is nothing but the value of x in the equation (y = f(x)) and range is nothing but the value of y in the equation (y = f(x)).

So, from the given graph there are two values of 'x' at which the graph of the function gets started and ends.

The values are (x = -5) and (x = 3). But the graph includes what happened at (x = -5) but not (x = 3). Therefore, the domain of the given graph is:

[tex]x\; \epsilon\;[-5,3)[/tex]

Similarly, there are two values of 'y' at which the graph of the function gets started and ends.

The values are (y = 0) and (y = 2) and the graph includes what happened at (y = 0) and (y = 2). Therefore, the range of the given graph is:

[tex]y\; \epsilon\;[0,2][/tex]

For more information, refer to the link given below:

https://brainly.com/question/2263981

There are 200 counters in a bag.
50 of them are taken out and have a dab of white paint placed on them.
These 50 marked counters are now put back in the bag which is given
a good shake to ensure even distribution of the marked counters.
80 counters are now taken out of the bag.
About how many of them would you expect to be marked with a
dab of white paint?

Answers

We know that 50/200 of the counters have white paint. That is equal to 1/4 of the counters. Since there is an even distribution of the counters, we can guess that 1/4 of the counters taken out have white paint. 1/4 of 80 = 20

We could expect about 20 of the counters taken out to have white paint

Out of those 80 counters, 20 counters may have a white dab on them.

Given to us

Total number of counters in the bag = 200

counters that have a white dab = 50

counters that are now taken out of the bag = 80

Let's first take the ratio of counters that have a white dab to the total number of counters in the bag.

The ratio of bag    

[tex]\rm{=\dfrac{counters\ that\ have\ a\ white\ dab}{Total\ number\ of\ counters\ in\ the\ bag}[/tex]

[tex]=\dfrac{50}{200} = \dfrac{1}{4} = 0.25[/tex]

Therefore, the ratio of counters that have a white dab to the total number of counters in the bag is 0.25.

80 counters

As the bag is given  a good shake to ensure even distribution of the marked counters.

Those 80 counters will follow the same ratio of the bag, so, the number of tokens with white dab will be,

Number of tokens taken out x ratio of the bag

= 80 x 0.25

= 20

Hence, out of those 80 counters, 20 counters may have a white dab on them.

Learn more about ratio:

https://brainly.com/question/1504221

Plz help!!!!!!!!!
Pre-calulus

Answers

Answer:

1

Step-by-step explanation:

We are to find the value of the following:

[tex] log _ 3 5 \times log _ { 2 5 } 9 [/tex]

[tex] \log _ { 3 } 5 \times \log _ { 2 5 } 9 =\dfrac{1}{\log_{5}3}\times\log_{25}9=\dfrac{1}{\log_{5}3}\times\log_{5^2}9=\dfrac{1}{\log_{5}3}\times\dfrac{1}{2}\log_{5}9[/tex]

[tex] \dfrac { 1 } { \log _ { 5 } 3 } \times \dfrac { 1 } { 2 } \log_ { 5 } 9 = \dfrac{1}{\log_{5}3}\cdot\dfrac{1}{2}\log_{5}3^2=\dfrac{1}{\log_{5}3}\cdot\dfrac{2}{2}\log_{5}3=\dfrac{1}{\log_{5}3}\cdot\log_{5}3=\dfrac{\log_{5}3}{\log_{5}3}=[/tex] 1

Answer:

The value is: 1

Step-by-step explanation:

Use the Change of base formula. This is:

[tex]log_a(x)=\frac{log_b(x)}{log_b(a)}[/tex]

Using base 10:

[tex]log_3(5)*log_{25}(9)=\frac{log(5)}{log(3)}*\frac{log(9)}{log(25)}[/tex]

We know that:

[tex]9=3^2\\25=5^2[/tex]

And according to the logarithms properties:

[tex]log(x)^n=nlog(x)[/tex]

Then, we can simplify the expression:

[tex]=\frac{log(5)}{log(3)}*\frac{log(3)^2}{log(5)^2}=\frac{log(5)}{log(3)}*\frac{2log(3)}{2log(5)}=\frac{log(5)}{log(3)}*\frac{log(3)}{log(5)}=\frac{log(5)*log(3)}{log(3)*log(5)}=1[/tex]

Look at the diagram below. If JM = LM, then angles JKM are congruent.- From Apex
True or False

Answers

Answer:

The answer to this question is True

Answer: true

Step-by-step explanation:

p (a) =0.60, p(b) = 0.25, and p(a and b) =0.15 what is p(a or b) ?

a.) 0.40
b.) 0.85
c.) 0.70
d.) 0.75

Answers

Answer:

C is the correct option

Step-by-step explanation:

To find the probability of P(a or b) we will use  the formula:

P(a or b)= P(a)+ P(b) - P(a-b)

Now put the given values in the formula:

P(a or b)= 0.60+0.25-0.15

P(a or b)=0.85 - 0.15

P(a or b)= 0.70

Thus the correct option is C....

Answer: Option C

[tex]P (A\ or\ B) = 0.70[/tex]

Step-by-step explanation:

If A and B are events that are not mutually exciting, then it is true that:

[tex]P (A\ or\ B) = P (A) + P (B) - P (A\ and\ B)[/tex]

In this case we know [tex]P(A)[/tex], [tex]P(B)[/tex] and we also know [tex]P (A\ and\ B)[/tex]

[tex]P(A)=0.60[/tex]

[tex]P(B) = 0.25[/tex]

[tex]P(A\ and\ B)=0.15[/tex]

Therefore we have that:

[tex]P (A\ or\ B) = 0.60 + 0.25 - 0.15[/tex]

[tex]P (A\ or\ B) = 0.60 + 0.1[/tex]

[tex]P (A\ or\ B) = 0.70[/tex]

Which statement correctly compares AB and FD?
AB and FD are the same length.
AB is longer than FD.
O
AB is shorter than FD
AB is shorter than or the same length as FD.

Answers

Answer:

AB is longer than FD.

Step-by-step explanation:

This is an SAS triangle problem.

According to the law of cosines,

c^2 = a^2 + b^2 - 2abcosC

In triangle ABC, a = BC, b = AC, and c = AB

In triangle FDE, a = DE, b = FE, and c = FD.

The only difference is that C is 72° in one triangle and 65° in the other.

We know that cos0° = 1 and cos 90° = 0, so cos72° < cos65°.

In triangle ABC, cosC is smaller, so you are subtracting a smaller number from a^2 + b^2.

c^2 is larger, so c is larger.

AB is longer than FD.

That makes sense because, as you widen the angle between your outstretched arms, the distance between your hands increases.

The statement which correctly compares AB and FD is AB is longer than FD.

What is Triangle?

A triangle is a two dimensional figure which consist of three vertices, three edges and three angles.

Sum of the interior angles of a triangle is 180 degrees.

Given two triangles, ABC and DEF.

We have to find the relationship between the sides AB and FD.

Given that,

Sides AC and FE are congruent.

Sides BC and DE are congruent.

Included angles, ∠C = 72° and ∠E = 65°

The side opposite to larger angle will be larger.

So AB is longer than FD.

Hence AB is longer than FD.

Learn more about Angles here :

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56
There are 134 third-graders and 167 fourth-graders at the annual school and
family picnic. The number of students is 7 times the number of adults.
Each picnic table can seat 9 people. How many picnic tables will need to be
set up for the picnic?
Show your work.
total
301. Student
PRACTICE TEST 1
+63
64
i
n
63
third graders and

Answers

Answer:

39

Step-by-step explanation:

134 + 167 = 301

301/7=43

301+430= 344

344/9 = 38.2  so you would need 39 tables

2x2 + 14x- 4 = - x2 + 3x

Answers

first, lets solve by factoring:

Let's solve your equation step-by-step.

2x2+14x−4=−x2+3x

Step 1: Subtract -x^2+3x from both sides.

2x2+14x−4−(−x2+3x)=−x2+3x−(−x2+3x)

3x2+11x−4=0

Step 2: Factor left side of equation.

(3x−1)(x+4)=0

Step 3: Set factors equal to 0.

3x−1=0 or x+4=0

x=

1

3

or x=−4

we can also solve using the quadratic formula:

2x2+14x−4=−x2+3x

Step 1: Subtract -x^2+3x from both sides.

2x2+14x−4−(−x2+3x)=−x2+3x−(−x2+3x)

3x2+11x−4=0

Step 2: Use quadratic formula with a=3, b=11, c=-4.

x=

−b±√b2−4ac

2a

x=

−(11)±√(11)2−4(3)(−4)

2(3)

x=

−11±√169

6

x=

1

3

or x=−4

lastly, we can complete the square.

2x2+14x−4=−x2+3x

Step 1: Add x^2 to both sides.

2x2+14x−4+x2=−x2+3x+x2

3x2+14x−4=3x

Step 2: Subtract 3x from both sides.

3x2+14x−4−3x=3x−3x

3x2+11x−4=0

Step 3: Add 4 to both sides.

3x2+11x−4+4=0+4

3x2+11x=4

Step 4: Since the coefficient of 3x^2 is 3, divide both sides by 3.

3x2+11x

3

=

4

3

x2+

11

3

x=

4

3

Step 5: The coefficient of 11/3x is 11/3. Let b=11/3.

Then we need to add (b/2)^2=121/36 to both sides to complete the square.

Add 121/36 to both sides.

x2+

11

3

x+

121

36

=

4

3

+

121

36

x2+

11

3

x+

121

36

=

169

36

Step 6: Factor left side.

(x+

11

6

)2=

169

36

Step 7: Take square root.

x+

11

6

=±√

169

36

Step 8: Add (-11)/6 to both sides.

x+

11

6

+

−11

6

=

−11

6

±√

169

36

x=

−11

6

±√

169

36

x=

1

3

or x=−4

Answer:

x=

1

3

or x=−4

Final answer:

The equation [tex]2x^2 + 14x - 4 = -x^2 + 3x[/tex] is a quadratic equation, which can be solved by standard methods such as factoring, completing the square, or applying the quadratic formula and then validated by substituting the solutions back into the original equation.

Explanation:

To solve the quadratic equation, [tex]2x^2 + 14x - 4 = -x^2 + 3x[/tex], first combine like terms by getting all terms on one side of the equation, resulting in [tex]3x^2 + 11x - 4[/tex] = 0. This is a standardized quadratic equation [tex]ax^2[/tex] + bx + c = 0. To find the solutions for this equation, you can either factorize it, complete the square or use the quadratic formula, (-b ± √([tex]b^2[/tex] - 4ac)) / (2a). After finding the roots (values for x), verify them by plugging them back into the original equation to ensure they satisfy it.

Drag the tiles to the correct boxes to complete the pairs.
Match each division expression to its quotient.

Answers

Answer:

Part 1)  3 --------> [tex]3\frac{3}{7}[/tex] ÷ [tex]1\frac{1}{7}[/tex]

Part 2) -3 -------> [tex]-2\frac{2}{5}[/tex] ÷ [tex]\frac{4}{5}[/tex]

Part 3) 2 --------> [tex]-12.2[/tex] ÷ [tex]-6.1[/tex]

Part 4) -2 -------> [tex]-16[/tex] ÷ [tex]8[/tex]

Step-by-step explanation:

Part 1) we have

[tex]3\frac{3}{7}[/tex] ÷ [tex]1\frac{1}{7}[/tex]

Convert mixed number to an improper fraction

[tex]3\frac{3}{7}=\frac{3*7+3}{7}=\frac{24}{7}[/tex]

[tex]1\frac{1}{7}=\frac{1*7+1}{7}=\frac{8}{7}[/tex]

Substitute

The quotient is equal to

[tex](\frac{24}{7})/(\frac{8}{7})=\frac{24}{8}=3[/tex]

Part 2)

we have

[tex]-2\frac{2}{5}[/tex] ÷ [tex]\frac{4}{5}[/tex]

Convert mixed number to an improper fraction

[tex]-2\frac{2}{5}=-\frac{2*5+2}{5}=-\frac{12}{5}[/tex]

Substitute

The quotient is equal to

[tex](-\frac{12}{5})/(\frac{4}{5})=-\frac{12}{4}=-3[/tex]

Part 3) we have

[tex]-12.2[/tex] ÷ [tex]-6.1[/tex]

Convert decimal number to an improper fraction

[tex]-12.2=(-12.2)*\frac{10}{10}=-\frac{122}{10}[/tex]

[tex]-6.1=(-6.1)*\frac{10}{10}=-\frac{61}{10}[/tex]

Substitute

The quotient is equal to

[tex](-\frac{122}{10})/(-\frac{61}{10})=\frac{122}{61}=2[/tex]

Part 4)  we have

[tex]-16[/tex] ÷ [tex]8[/tex]

Remember that

[tex]-16=-8*2[/tex]

Substitute

The quotient is equal to

[tex](-8*2)/(8)=-2[/tex]

Answer:

the guy above me got it and i needed the points sorry lol

Step-by-step explanation:

There needs to be work shown

Answers

F(x)=5x/x^2-25

0=5x/x^2-25

(You have to swap the sides of the equation)

5x/x^2-25=0

5x=0

(Divide both sides by 5)

Soooo.... X=0

Which of the following inequalities matches the graph?

[tex]x > - 3[/tex]
[tex]x < - 3[/tex]
[tex]y > - 3[/tex]
[tex]y < - 3[/tex]
which one is it 1,2,3,or 4 one ​

Answers

Answer:

y < -3

Step-by-step explanation:

<, > - dotted line

≤, ≥ - solid line

x ≤ a or x < a - the region below the horizontal line x = a

x ≥ a or x > a - the region above the horizontal line x = a

y ≤ a or y < a - the region on the left side of the vertical line y = a

y ≥ a or y > a - the region to the right of the vertical line y = a

=========================================

We have dotted line (<, >).

The vertical line (y).

The region on the left side of the vertical dotted line y = -3

please help. its an emergency!!!!

Answers

Answer:

The equation x+3=9 is true if and only if x=6.

Not enough information.

Step-by-step explanation:

We are looking for a if and only if statement for a bioconditional.

There is only one such choice:

The equation x+3=9 is true if and only if x=6.

We only know information about the triangle's angles, and nothing about their sides.  AAA (angle-angle-angle) is not enough information to conclude congruence.  It is enough for proving it to be similar.  

please help me with this math question ​

Answers

The ":" is actually a division, a fraction.

So part a is therefore,

[tex]\dfrac{w}{100}=\dfrac{12}{25}[/tex]

Here we use cross multiplication,

[tex]\dfrac{a}{b}=\dfrac{c}{d}\Longleftrightarrow ad=bc[/tex]

And we have,

[tex]

25w=12\cdot100 \\

w=\dfrac{12\cdot100}{25}=\dfrac{1200}{25}=\boxed{48}

[/tex]

Now part b.

First convert 2m to cm. 1m = 100cm therefore 2m is 200cm.

Now we have simplified to,

[tex]\dfrac{180}{200}=\dfrac{1.8}{2}=\dfrac{\dfrac{18}{10}}{2}=\dfrac{\dfrac{9}{5}}{2}=\boxed{\dfrac{9}{10}=9:10}

[/tex]

Hope this helps.

r3t40

6 friends are going to sit together in a rollercoaster that has 6 seats. In how many different arrangements can they sit?

Answers

Answer:

36

Step-by-step explanation:

I think it may be 36. I did 6×6, but I'm not fully positive

There are 720 different arrangements in which the 6 friends can sit in the 6 seats of the rollercoaster.

To calculate the number of different arrangements in which the 6 friends can sit in the 6 seats of the rollercoaster, we can use the concept of permutations.

Since each friend occupies one seat and no two friends can occupy the same seat, we have 6 choices for the first seat, 5 choices for the second seat, 4 choices for the third seat, and so on until 1 choice for the last seat.

So, the total number of arrangements is the product of these choices:

[tex]\[ 6 \times 5 \times 4 \times 3 \times 2 \times 1 = 720 \][/tex]

An athletics coach states that the distribution of player run times (in seconds) for a 100-meter dash is normally distributed with a mean equal to 13.00 and a standard deviation equal to 0.2 seconds. What percentage of players on the team run the 100-meter dash in 13.30 seconds or faster? (Round your answer to two decimal places.)

Answers

Answer:

6.68%

Step-by-step explanation:

First find the z-score:

z = (x − μ) / σ

z = (13.30 − 13.00) / 0.2

z = 1.50

Look the value up in a z-score table, or use a calculator.

P(z>1.50) = 1 − 0.9332

P(z>1.50) = 0.0668

6.68% of players on the team run the 100 meter dash in 13.30 seconds or faster.

Find the slope of the line that contains the points (4,-3) and (-4,1). is it undefined?

Answers

[tex]\huge{\boxed{-\frac{1}{2}}}[/tex]

We can find the slope with [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are both points.

Plug in the values. [tex]\frac{1-(-3)}{-4-4}[/tex]

Simplify. [tex]\frac{1+3}{-4-4}[/tex]

Add/subtract. [tex]\frac{4}{-8}[/tex]

Simplify. [tex]\boxed{-\frac{1}{2}}[/tex]

Answer:

No.

The slope of the line is -1/2.

Step-by-step explanation:

I'll give you a hint, to solve slope of the line use [tex]\displaystyle \frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]\displaystyle \frac{1-(-3)}{(-4)-4}=\frac{4}{-8}=\frac{4\div4}{-8\div4}=\frac{1}{-2}=-\frac{1}{2}[/tex]

The slope of the line is -1/2, which is our answer.

I hope this helps!

Helena uses a free online account to store digital photos and videos. She uploads 650 photo and video files from her phone to the account. The average size of each photo is 4 megabytes and the average size of each video is 9 megabytes. The total upload size was 2,925 megabytes. Which system of equations can be used to determine the number of photo files, p, and the number of video files, v, Helena uploaded from her phone?

p + v = 650 and 4v + 9p = 2,925
p = 650 – v and 4p + 9v = 2,925
4v = 650 – 9p and 13(p + v) = 2,925
9v + 4p = 650 and v + p = 2,925

Answers

Answer:

p = 650 – v and 4p + 9v = 2,925 , Its B

https://brainly.com/question/3605037

Answer:

b

Step-by-step explanation:

find the zeros of the quadratic polynomial 4√5x^2-24x-9√5 and verify its relationship between its zeroes and coefficients.........answer required urgently for my assignment

Answers

Answer:

The zeros of the quadratic polynomial are

[tex]x=\frac{15\sqrt{5}}{10}[/tex]  and [tex]x=-\frac{3\sqrt{5}}{10}[/tex]

The relationship between its zeroes and coefficients in the procedure

Step-by-step explanation:

step 1

Find the zeros

we know that

The formula to solve a quadratic equation of the form [tex]ax^{2} +bx+c=0[/tex] is equal to

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

in this problem we have

[tex]4\sqrt{5}x^{2}-24x-9\sqrt{5}=0[/tex]

so

[tex]a=4\sqrt{5}\\b=-24\\c=-9\sqrt{5}[/tex]

substitute in the formula

[tex]x=\frac{-(-24)(+/-)\sqrt{-24^{2}-4(4\sqrt{5})(-9\sqrt{5})}} {2(4\sqrt{5})}[/tex]

[tex]x=\frac{24(+/-)\sqrt{-24^{2}-4(4\sqrt{5})(-9\sqrt{5})}} {8\sqrt{5}}[/tex]

[tex]x=\frac{24(+/-)\sqrt{1,296}} {8\sqrt{5}}[/tex]

[tex]x=\frac{24(+/-)36} {8\sqrt{5}}[/tex]

[tex]x=\frac{24(+)36} {8\sqrt{5}}=\frac{15\sqrt{5}}{10}[/tex]

[tex]x=\frac{24(-)36} {8\sqrt{5}}=-\frac{3\sqrt{5}}{10}[/tex]

step 2

Find the sum of the zeros and the product of the zeros

Sum of the zeros

[tex](\frac{15\sqrt{5}}{10})+(-\frac{3\sqrt{5}}{10})=\frac{12\sqrt{5}}{10}=\frac{6\sqrt{5}}{5}[/tex]

Product of the zeros

[tex](\frac{15\sqrt{5}}{10})*(-\frac{3\sqrt{5}}{10})=-\frac{9}{4}[/tex]

step 3

Verify that

Sum of the zeros= -Coefficient x/Coefficient x²

Coefficient x=-24

Coefficient x²=4√5

substitute

[tex]\frac{6\sqrt{5}}{5}=-(-24)/4\sqrt{5}\\ \\\frac{6\sqrt{5}}{5}=\frac{6\sqrt{5}}{5}[/tex]

therefore

the relationship is verified

step 4

Verify that

Product of the zeros= Constant term/Coefficient x²

Constant term=-9√5

Coefficient x²=4√5

substitute

[tex]-\frac{9}{4}=(-9\sqrt{5})/4\sqrt{5}\\ \\-\frac{9}{4}=-\frac{9}{4}[/tex]

therefore

the relationship is verified    

Figure ABCD is transformed to figure , as shown: Which of the following sequences of transformations is used to obtain figure from figure A'B'C'D?

Answers

You need a picture deficiencies did that for 20 characters

The length of a rectangle is (3x - 5) inches, and its width is 2x inches. Find the area of the rectangle.

Answers

Answer:

6x^2 - 10x  inches ^2

Step-by-step explanation:

The area of a rectangle is

A = l*w

    = (3x-5) * (2x)

    = 6x^2 - 10x

Answer:

The area of the rectangle is 6x^2(squared)-10x

Step-by-step explanation:

To find the area of rectangles, you must multiply the length by the width. The formst for this is A=LxW. When you substitute each part of the equation in, it becomes 2x(3x-5). When you have parentheses, distribute the number on the outside to each number(or variable) on the inside. First, multiply 2x by 3x. This leaves you with 6x^2(squared). Then, multiply the 2x by the -5. This leaves you with -10x. Combine each part to get 6x^2(squared)-10x. :)

You are a real estate agent. For every house you sell you earn 3.8% commission. This month you sold 2 houses that had a combined total of $560,950. How much commission will you earn?

Answers

Answer:

$ 134,628

Step-by-step explanation:

1. make 3.8 into a percent round decimal to the right 2 times

2.multiply the total with the percent

3.solve

4.take answer and subtracted from the total

5.solve

6. subtract the number you got from the first solution problem from the last problen solution

7.solve

Answer: $21,316.1

Step-by-step explanation:

Given :  For every house you sell you earn 3.8% commission.

Which can be written as 0.038.

This month you sold 2 houses that had a combined total of $560,950

Then, the amount of commission you will earn is given by :-

[tex]\$560,950\times0.038=\$21,316.1[/tex]

Therefore, the you will earn $21,316.1 as commission.


Suppose that you want to design a cylinder with the same volume as a given cylinder, but you want to use a different radius and height. In general
terms, how can you changer and h to produce the same wolume for both cylinders?

Answers

volume of a cylinder = pi×r^2×h

Answer:

I can increase r and decrease h, or I can decrease r and increase h.

Step-by-step explanation:

answer given in edmentum

Tonya wrote the equation below which solves for x.

x=150-6y

Which equation is equivalent to Tonya’s equation?

Answers

Answer:

x+6y=150

Step-by-step explanation:

If you add 6y to both sides of the equation, it becomes this, making it equal.

Answer:

x+6y = 150 (B)

Step-by-step explanation:

Given the equation x = 150-6y

The equation is also equivalent to

x+6y = 150.

This is gotten simply by taking -6y to the other side of the equation but note that if a function or constant is crossing an 'equal to' sign in an equation, it changes the sign. Considering this equation, -6y changed to +6y upon crossing the equal to sign to give is x+6y = 150 which is the required answer.

Which of the following polynomials has a remainder of -11 when divided by x+1? A. −2x3+4x2+3x−2 B. 3x3+6x−2 C. x3−2x2−4x+1 D. 4x3+2x2+5

Answers

Answer:

B. 3x3+6x−2

Step-by-step explanation:

When you divide 3x3+6x−2 by x+1 we get a remainder of -11.

Hassan used the iterative process to locate
0.15 on the number line,
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Which best describes Hassan's estimation?
Hassan is correct because 0.15 0.4.
Hassan is correct because the point is on the middle of the number line.
Hassan is incorrect because 0.15 is less than 0.4.
Hassan is incorrect because the point should be located between 0.1 and 0.2.

Answers

Answer: 3.

Hassan is incorrect because StartRoot 0.15 EndRoot is less than 0.4.    

Step-by-step explanation:

Hassan used the iterative process to locate StartRoot 0.15 EndRoot on the number line.

A number line going from 0 to 0.9 in increments of 0.1. A point is between 0.4 and 0.5.

Which best describes Hassan’s estimation?

Hassan is correct because StartRoot 0.15 EndRoot almost-equals 0.4

Hassan is correct because the point is on the middle of the number line.

Hassan is incorrect because StartRoot 0.15 EndRoot is less than 0.4.    

Hassan is incorrect because the point should be located between 0.1 and 0.2.

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