Answer:
x = -3
Step-by-step explanation:
simplify
3(x - 4) = -21
3x - 12 = -21
3x = = -9
x = -3
Answer:
The exact volume of the cone is 
Step-by-step explanation:
we know that
The volume of the cone is equal to

we have


substitute the values

Answer:
l and n are parallel
Step-by-step explanation:
360° around a point
65° x 2 = 130
360 - 130 = 230
230/2 = 115
115 ° are corresponding angles
Answer:
thxfor free points
Step-by-step explanation:
The answer is 12x^2. you multiply -4 by -3