3 years ago

Help please. Find the area of this circle

Mathematics

1 answer:

aleksley [76]3 years ago

5 0

Answer:

Step-by-step explanation:

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8x-5y=15 <br>6x+4y=43<br>solve the system by any method

Sedbober [7]

Answer:

$x=\frac{275}{62}$ , $y=\frac{127}{31}$

Step-by-step explanation:

<h3>I will use the elimination method.</h3>

We want to make the X's the same:

$24x-15y=45$

$24x+16y=172$

Because the signs of the X's are the same we subtract the 2 equations to make:

(I put the second one on top of the 1st)

$31y=127$

So:

$y=\frac{127}{31}$

Substitute y into either equation 1 or 2:

(I chose equation 1)

$8x-5(\frac{127}{31})=15$

$8x=5(\frac{127}{31}) + 15$

$x=\frac{5(\frac{127}{31})}{8}$

So:

$x=\frac{275}{62}$

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3 years ago

A circle has an area of 36pi square inches. Find the radius

zmey [24]

<span>circle area = </span>πr² ⇒

$\pi r^2=36 \pi \\ r^2= \frac{36 \pi }{ \pi } \\ r^2=36 \\ r= \sqrt{36} \\ r=6 \ in$

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3 years ago

Help I don’t know it

Vladimir [108]

Answer:

use socratic

Step-by-step explanation:

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4 years ago

Read 2 more answers

Suppose g(m) varies inversely with M and g (m) = 3.5 when m = 10.

mojhsa [17]

Answer:

m =7.

Step-by-step explanation:

Let the constant number = k.

g(m) = k/m,

3.5 = k/10,

k = 35.

Thus, when g(m) = 5 = 35/m, m = 7.

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3 years ago

Which expression is equivalent to

tankabanditka [31]

144^(3/2) = √(144^3) = 1,728

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3 years ago