Solve a3  = -64. plz wit the i have a final exam

The answer is -21.333 repeating

Step-by-step explanation: -21.33333x3=-64

or -64/3=21.333333333

Hope this helps!

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus