3 years ago

Please help me find what ? Is

Mathematics

1 answer:

kotegsom [21]3 years ago

4 0

Answer:

My answer is 43 its that rigth

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Mandarinka [93]

$\frac{5}{a + 3} = \frac{3}{a - 2}$

$5(a - 2) = 3(a + 3)$

$5a - 10 = 3a + 9$

$5a - 3a = 9 + 10$

$2a = 19$

$a = \frac{19}{2} = 9 \frac{1}{2}$

$Answer = D.) a = 9 \frac{1}{2}$

$\textbf{Spymore}$

4 0

3 years ago

is it possible to find a side length that would be perfect for a square with an area of 45 square units?

Cerrena [4.2K]

If a square has an area of 45 square units its side has a length of

$s=\sqrt{45} = 3 \sqrt{5}$

units. Is that a perfect length? I don't know, but I know it's perfect for a square whose area is 45.

5 0

3 years ago

Find the distance between two points C(-6,5) and D(-3,1)

gladu [14]

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have:

$C(-6,\ 5)\to x_1=-6,\ y_1=5\\D(-3,\ 1)\to x_2=-3,\ y_2=1$

substitute:

$d=\sqrt{(-3-(-6))^2+(1-5)^2}=\sqrt{3^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5$

Answer: 5 units.

6 0

3 years ago

A line that divides a shape into two equal parts is called

umka21 [38]

the answer is line symmetry

3 0

3 years ago

What is -7-4p-(-5) <br> ??

Oxana [17]

-7-4p-(-5) = -7+5-4p = -2-4p = -1-2p

5 0

3 years ago

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