Answer:
She subtracted both sides of the equation by 2x.
Step-by-step explanation:
Because she did that, 4x - 2x + 3 = 2x - 2x -18
When subtracting like terms, 2x + 3 = -18
Even [ 10 is even ] ( 50 ÷ 5 = 10 )
(3V)/A = h
V = 1/3 Ah
Solve the literal equation using inverse operations;
*3 *3
3V = Ah
/A /A
Answer
Radius = 6 cm
Surface area = 2πr(r+h)
=2×
7
22
×6×(6+8)
=528 cm
2
