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Answer 1
Answer:

area=108 in. squared

12/2 gives you the radius (6)

6 squared is 36

36 times 3 is 108


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Gomez found the masses of three rocks for a science project. The first rock had a mass of 19.28 grams the second rock had a mass of 25.3 grams and the third rock had a mass of 46.3 grams. How much greater was the mass of the third rock than the combiend mass of the other two rocks.
Simplify the sum. (2u^3 + 6u^2 + 3) + (2u^3 - 7u + 6)
Find dy/dx in the following 1) y= sin x+ e^{x}2) y= e^{x}-1/x+㏒e x
Samira ran around a park loop that was 1/3 mile long. She ran around the loop 9 times. Samira says she ran 9/3 miles. Her brother Amal says she ran 3 miles. Who is correct? Use words and drawings to explain how you know.
Fifteen times a number subtracted from 80 is 25

What number is 3% of 100?

Answers

3% of 100
10%=100/10=10
1%=10/10=1
3%=1x3=3 (answer)

hope this helps


Which is the angle measure represented by 7.5 rotations clockwise?

Answers

Answer:

-2700°


Step-by-step explanation:

  • 1 rotation is 360°, also
  • Counterclockwise angles are POSITIVE ANGLES & Clockwise angles are NEGATIVE ANGLES

7.5 rotations is 360*7.5=2700 degrees

and since it is clockwise, the angle is negative.


Hence, 7.5 rotations clockwise means -2700°

1 rotation equals 360 degrees.  1/2 of a rotation equals 360/2 = 180 degrees.  So, 7 times 360 degrees = 2520 degrees plus 180 degrees = 2700 degrees.

A cylindrical swimming pool has a diameter of 18 feet and a height of 4 feet. About how many liters of water are needed to fill the swimming pool 85% of its total volume? Round your answer to the nearest whole number. (1 ft³ ≈ 28.3 L) To the nearest whole number of liters.

Answers

Final answer:

To fill a cylindrical swimming pool with a diameter of 18 feet and a height of 4 feet 85% full, you'll need approximately 24462 liters of water.

Explanation:

To determine how many liters of water are needed to fill the swimming pool to 85% of its total volume, we first need to calculate the total volume of the cylindrical pool. The formula to calculate the volume of a cylinder is V=πr²h were r is the radius (half of the diameter) and h is the height. Therefore, the pool's total volume in cubic feet is V=π*9²*4 ≈ 1018 ft³. However, the student only wants to fill the swimming pool up to 85%, so we multiply this total volume by 0.85 to get approximately 865 ft³.

Since 1 ft³ ≈ 28.3 L, we can calculate the needed volume in liters by multiplying the 865 ft³ by 28.3 to obtain approximately 24462 liters of water. Round to the nearest whole number, so about 24462 liters of water are needed to fill the swimming pool es up to 85% of its volume.

Learn more about Cylindrical Volume Calculation

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Solve the equation. Show your work.
3x = 45

Answers

If you would like to solve the equation 3 * x = 45, you can calculate this using the following steps:

3 * x = 45        /3
x = 45/3
x = 15

The correct result would be 15.
3x=45
45:3=15
x=15

good homework

Which of the following is the value of e^2 correct to 3 decimal places A:73.890
B:7.3893
C:7.389
D:738.9

Answers

Final answer:

The numerical constant 'e' equals approximately 2.71828. If we square 'e,' we get the approximate value of 7.38905. Rounding to three decimal places, the correct answer is 7.389.

Explanation:

The constant e is an essential numerical constant that is the base of the natural logarithm. It is approximately equal to 2.71828. When you want to find the value of e^2, meaning 'e' squared, you multiply 'e' by itself.

To find the value to 3 decimal places, we operate: 2.71828 * 2.71828= 7.38905.

Therefore, rounding to 3 decimal places, e^2 is equal to 7.389. So, the correct answer to your question is option C: 7.389.

Learn more about Exponential Functions here:

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Answer:

C

Step-by-step explanation:

What is the sum of the polynomials?(7x3 – 4x2) + (2x3 – 4x2)
5x3
9x3
5x3 – 8x2
9x3 – 8x2

Answers

Answer: Last option is correct.

Step-by-step explanation:

Since we have given that

7x^3-4x^2+2x^3-4x^2

We need to find the sum of the polynomials:

So, we first collect the like terms:

7x^3-4x^2+2x^3-4x^2\n\n=7x^3+2x^3-4x^2-4x^2\n\n=9x^3-8x^2

Hence, the sum of polynomials is 9x^3-8x^2

Therefore, Last option is correct.

9x^3 - 8x^2 is the answer. to solve this you must distribute the sign across each parenthetical and then add the like terms (all cubed x variables added to cubed variables and all squared x variables added to squared variable)