Answer:
Volume l^3 ,where l is the side of cube
11/3^3=1331/27
=49.29cm^3
Answer:
Use pemdas
Step-by-step explanation:
Paranthese, e, multiplacation, division, addition, subtraction
12(x-3) + 18 = 4(2x-3)
12x-36+18 = 8x-12
12x -18 = 8x-12
12x-8x = -12 + 18
4x = 6
x = 6/4 or 3/2
one solution A
Two angles that added together equal 90 degrees
The equation should be 7x^2 -x-9=0