Answer:
27
Step-by-step explanation:
sorry if its wrong i just did 9×9×9 and got 27
9x^2 -c =d
add c to each side
9x^2 = c+d
divide by 9
x^2=(c+d)/9
take the square root on each side
x = +- sqrt ((c+d)/9)
simplify
x = +- 1/3 sqrt (c+d)
Answer: 1/3 sqrt (c+d), - 1/3 sqrt (c+d)
Answer:
<h2>
290 m^3</h2>
Solution,

Hope this helps..
Good luck on your assignment..
Answer:
a
Step-by-step explanation:
I represent the imaginary part like a+bi where a is the real part
but in the other words i = sqrt(-1)
hope helped