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3 years ago

Find the circumference. (In terms of pi)

Mathematics

1 answer:

jeka943 years ago

4 0

16*pi

Solution:

Formula for circumference of a circle: 2*pi*r

2*pi*8= 16*pi

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How find derivative of function: y=arcsin(2x+1)<br> ...?

Setler [38]

$( \arcsin{x})'= \frac{1}{ \sqrt{1-x^2} } 
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\\= \frac{2}{ \sqrt{-4x^2-4x} } =\frac{2}{ \sqrt{4x(-x-1} )} =\frac{2}{ 2\sqrt{x(-x-1} )} =\frac{1}{ \sqrt{x(-x-1} )}$

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3 years ago

Rachel wants to use the Distributive Property to rewrite 72 + 45. Which expression could she use?

kiruha [24]

72 and 45 can both be divided by 3.

So,

72 + 45

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6 0

3 years ago

Alex went to the grocery store and bought 5 avocados. He paid $10 and received $4.50 in change. How much did each avocado cost i

Delvig [45]

Answer:

$1.10

Step-by-step explanation:

We have been that Alex went to the grocery store and bought 5 avocados. He paid $10 and received $4.50 in change.

First of all, we will find amount paid for 5 avocados by subtracting $4.50 from $10.

$\text{Amount paid for 5 avocados}=\$10-\$4.50$

$\text{Amount paid for 5 avocados}=\$5.50$

Now, we will divide $5.50 by 5 to find cost of each avocado.

$\text{Cost of each avocado}=\frac{\$5.50}{5}$

$\text{Cost of each avocado}=\$1.10$

Therefore, the cost of each avocado is $1.10.

3 0

3 years ago

What is the coefficient of the 3rd term of : 2x^3 + 3x^2 - 5x + 14

LenaWriter [7]

Answe

Step-by-step explanation

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5 0

3 years ago

I need help on that one plzzz help me this is due tommorw morning answer

vfiekz [6]

Answer:

A = 45

B = 90

C = 45

Step-by-step explanation:

Isosceles triangles have two side that are the same and two angles that are the same. Since one angle, B, is a right angle, 90°, that means the other 2 angles, A & C, added together equal 90°.

Divide 90 by 2 and you 45° for both A and C.

4 0

3 years ago

Read 2 more answers