Answer:
x = 30
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx =
=
=
, then
x =
(
) = 30
The answer is B: 6 cm. You can use guess-and-check method, and plug the possible different answers into the equation x(x+6)=72, x stands for the width.
Answer:
252.3110
Step-by-step explanation:
V of w sphere =


r³
Multiply by 3 on either sides to get rid of the fraction.

3V = 4

r³
Now divide either sides by 4

to isolate r³

r³
4

and 4

cancels out

= r³
Take the cube root to isolate r.
![\sqrt[3]{ \frac{3V}{4 \pi } } = \sqrt[3]{r^3}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B%20%5Cfrac%7B3V%7D%7B4%20%5Cpi%20%7D%20%7D%20%3D%20%20%5Csqrt%5B3%5D%7Br%5E3%7D%20)
the cube root cancels the cube
= r
Answer:
4
Step-by-step explanation:
3x² + 2x - 4
3(-2)² + 2(-2) - 4
3(4) - 4 - 4
12 - 4 - 4
12 - 8
= 4