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2 years ago

Find the area of the circle.

Mathematics

1 answer:

Alona [7]2 years ago

4 0

Answer:

C is the answer.

Step-by-step explanation:

Area of circle = $\pi r^2$

radius = 3

use pi = 3.14

So you have 3.14(3)^2

which equals 28.26 units squared, which is C.

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43 ×56 show how you get it

tankabanditka [31]

Answer:

2408

Step-by-step explanation:

6 0

2 years ago

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a rectangular pyramid has a volume of 190 cubic centimeters. Find two possible sets of measurements for the base area and height

DerKrebs [107]

<h3>One possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively</h3><h3>Other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively</h3>

Solution:

The volume of rectangular pyramid is given as:

$Volume = \frac{1}{3} \times base\ area \times height$

Given that,

Rectangular pyramid has a volume of 190 cubic centimeters

$190= \frac{1}{3} \times base\ area \times height$

Substitute, base area = 570 and height = 1

Then we get,

$190 = \frac{1}{3} \times 570 \times 1\\\\190 = 190$

Thus one possible set for the base area and height of the pyramid is 570 cm and 1 cm respectively

Substitute, base area = 285 and height = 2

$190 = \frac{1}{3} \times 285 \times 2\\\\190 = \frac{1}{3} \times 570\\\\190 = 190$

Thus other possible set for the base area and height of the pyramid is 285 cm and 2 cm respectively

6 0

3 years ago

Which expression is equivalent to 5x + 7y

astra-53 [7]

7y + 5x is another way to write it, is there anything specific you're looking for

3 0

3 years ago

Simplify the expression where possible.(-4 x^2 )^2

Oduvanchick [21]

Answer:

$16x^{4}$

Step-by-step explanation:

$(a^{m})^{n}=a^{m*n} \\\\\\$ and $(a*b)^{m}= a^{m}*b^{m}$

$(-4x^{2})^{2} = (-4)^{2} *(x^{2})^{2}\\\\\\=16 * x^{2*2}\\\\=16x^{4}$

6 0

3 years ago

Write an equation. Let x be the unknown number.

Assoli18 [71]

3-5x = -5
X =8/5
I hope this helps

4 0

2 years ago

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