your friend finds the volume of the pyramid. is your friend correct? explain your reasoning


Just say yes or no.

Answer:

20

Step-by-step explanation:

4 x 5 = 20

Answer:

156

Step-by-step explanation:

y = 72           x = 6

72/6 = 12

when x = 13

13 x 12 = 156

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Step-by-step explanation:

so  x*18 = 9*3   ( this is a formula for segments inscribed in a circle)

18x = 27

x = 27/18

x = 1.5

Answer:

2 3/4

Step-by-step explanation:

Answer:

Width=85. Length=185. Area=15,725

Step-by-step explanation:

540/2=270, which is the sum of length+width.

270-15=255, so what's left is width+width+width.

255/3=85.

85*2=170

170+15=185

85*185=15,725

Answer:

10 students were taking science and art at the same time.

Step-by-step explanation:

Given that a group of 80 students were asked if they were taking science or art, of which 10 were taking neither, 50 were taking science, and 30 were taking art, to determine how many students take both science and art, the following calculation must be done:

80 - 10 = 70

50 - 30 - 70 = X

80 - 70 = X

10 = X

Therefore, 10 students were taking science and art at the same time.

Step-by-step explanation:

all working is above

hope that helps

Answer:

The answer is "2.5".

Step-by-step explanation:

[tex]\to \frac{(25-24.5)}{0.2}= \frac{(0.5)}{0.2}=2.5[/tex]

The pieces which does not achieve that specific weight either are below and above the average standard deviation of 2.5. The percentage of components not fulfilling their weight data is 1.1% using a Table of Z-scores.

Answer:

Is there a picture attached to this or how big the whole yard is?

Step-by-step explanation:

Step-by-step explanation:

the product is

2³ x n²

sorry but I don't get your question

Step-by-step explanation:

it is equal to 8n2 that is the answer

Answer:

4x + y = 500

Step-by-step explanation:

Given:

Volume of water = 500 gallons

Water drained rate = 4 gallon per hour

Find:

Equation

Computation:

Total volume of water left in tank = y

Number of hour water drained = x

So,

Volume of water - Total volume of water left in tank = Water drained rate[Number of hour water drained]

500 - y = 4x

So,

Water drained;

4x + y = 500

Answer:

Step-by-step explanation:

y = The number of gallons in the tank after being drained for x hours

x = The number of hours that the tank is being drained

500 = The number of gallons in the tank

4 gallons = the number of gallons that are being drained per hour

y = 4x - 500

Correct answer: 0 = 4 (125) - 500

500 / 4 = 125

Answer:

-10x

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

-10x

Step-by-step explanation:

(-2) * (5x) = -10x

Answer:

The volume of the cylinder is 6,104.16 square meters.

Step-by-step explanation:

Given that a cylinder has a height of 6 meters and a diameter that is 6 times the measure of the height, to determine, using 3.14 for pi, which of the following can be used to calculate the volume of the cylinder, the following calculation must be done, knowing that the volume of a cylinder is determined by multiplying Pi by the height by the radius squared, and that the diameter of a circle is twice its radius:

3.14 x 6 x (6x3) ^ 2 = X

18.84 x 18 ^ 2 = X

18.84 x 324 = X

6,104.16 = X

Therefore, the volume of the cylinder is 6,104.16 square meters.

Answer:

(3.14)(18m)2(6m)

Step-by-step explanation:

I took the test

Answer:

y=5

Step-by-step explanation:

First simplify:

y/15=1/3

Multiply each side by 3

y/15x3=1/3x3

y/5=1

Multiply each side by 5

y=5

Answer:

44

Step-by-step explanation:

circumference = 2πr = 2*(22/7)*(14/2) = 44

Answer:

C = 44 cm

Step-by-step explanation:

The diameter is 14.  

The formula for circumference is

C = pi * d  where d is the diameter

C = 22/7  * 14

C = 22 * 2

C = 44 cm

9514 1404 393

Answer:

  96 yards

Step-by-step explanation:

The diagonal through the park cuts the rectangle into two right triangles. The Pythagorean theorem tells you the relationship between the sides of a right triangle and its hypotenuse: the sum of the squares of the sides is equal to the square of the hypotenuse.

The diagonal is the hypotenuse, so we have ...

  100² = 28² + w²

  w = √(10000 -784) = 96

The width of the park is 96 yards.

_____

Additional comment

The integer side lengths of a right triangle form what is called a "Pythagorean triple." One of the most often seen of these is (3, 4, 5). Other commonly seen Pythagorean triples are (5, 12, 13), (7, 24, 25), (8, 15, 17).

You may notice that the numbers here are those of the (7, 24, 25) Pythagorean triple, multiplied by 4. If you recognize the given lengths as having the ratio 28:100 = 7:25, you have the clue you need to determine the answer simply from your knowledge of Pythagorean triples.

Answer:

48 minutes

Step-by-step explanation:

Multiply

B or A. I'm not sure, because i learned this 5 years ago, but it is a or b. the only reason i dont know which one is because i forgot what a filled in dot, versus a circle means. on point 3 on your number line, there's a circle, and there's a dot on answer A and answer B respectively. if memory serves, it should be B

Answer:

=-1)+(-3)-(-5)

=-1-3+5

=-4+5

=1

Step-by-step explanation:

answer is to your question is 1.

Answer:

1

Step-by-step explanation:

-1 + (-3) - (-5)= -1 + 2 =  1  

  - and - give you +, so positive 5 and negative 3

- 3 + 5= 2  

Answer: A≈527.79m²

Step-by-step explanation:

HOPE THIS HELPS

9514 1404 393

Answer:

  +70 or -70, depending on how you rewrite the equation

Step-by-step explanation:

A quadratic equation in standard form can be written as ...

  ax² +bx +c = 0

When this equation is written in standard form, it could be either of ...

  17x² +30x +40 = 0 . . . . . . . . . . add 17x²+30x to both sides

or

  -17x^2 -30x -40 = 0 . . . . . . . . . subtract 40 from both sides

__

In the first case, a = 17, b = 30, c = 40 and (b+c) = 70.

In the second case, a = -17, b = -17, c = -40 and (b+c) = -70.

_____

Additional comment

I personally prefer a positive leading coefficient, but it is less work to subtract 40 from both sides than to subtract 2 terms from both sides. Check your curriculum materials for the preferred rewrite in this case.

Answer:

Did you mean 4 equal sections, not 5 equal sections?

Step-by-step explanation:

Did you mean 4 equal sections, not 5 equal sections?

Answer:

ther answer is 100% c

Step-by-step explanation:

i did the test

Answer:

11 5/18 ft squared

Step-by-step explanation:

because the floor is probably a rectangle, we can use the area formula to find the area of the carpet. the formula is

A = Length × Width

so now we plug in the numbers.

A = (4 5/6) × (2 1/3)

I'm going to simplify the numbers into an improper fraction because the numbers are in a mixed fraction format and I simply dislike it.

A = (29/6) × (7/3)

A = 203/18 ft squared

In the answer section, the numbers look different because I converted my 203/18 into a mixed number.

A = 203/18 = 11 5/18 ft squared

Answer:

Step-by-step explanation:

If you add the section from 1-3 and 4-6 you are adding 8 days plus 13 days. This will give you your answer of 21 days. Answer=D. 21 days

Answer:

The inverse function is [tex]f^{-1}(x) = \frac{x - 5}{9}[/tex]

Step-by-step explanation:

Inverse function:

Suppose we have a one-to-one function y = f(x). To find it's inverse, we exchange y and x, and then isolate y.

In this question:

[tex]y = 9x + 5[/tex]

Exchanging x and y:

[tex]x = 9y + 5[/tex]

Isolating y:

[tex]9y = x - 5[/tex]

[tex]y = \frac{x - 5}{9}[/tex]

[tex]f^{-1}(x) = \frac{x - 5}{9}[/tex]

The inverse function is [tex]f^{-1}(x) = \frac{x - 5}{9}[/tex]

Answer:

110 degrees

Step-by-step explanation:

the answer is 110 degrees

add up everything and subtract it by 360 to get 110.

plz dont report. Can I have brainliest. I need it.

Answer:

we will add all the sides

40+128+×+82=360

250+×=360

×=360-250

x=110

9514 1404 393

Answer:

  A

Step-by-step explanation:

The axis of symmetry of quadratic ax²+bx+c is x=-b/(2a). For the given equation, the axis of symmetry is ...

  x = -4/(2(3/2)) = -4/3

The only graph with its vertex at x=-4/3 is graph A.

_____

Additional comment

You can also make the correct choice by evaluating the equation at a couple of different values of x. Convenient ones are x= -1, or 0, or +1. The value at x=0 is the y-intercept, (0, -2), which seems to be a point on all of the graphs. The value at x=1 is 3/2+4-2 = 3.5, which looks like it is only seen on graph A.