Answer:
The answer is D.
Step-by-step explanation:
Time = Distance / Speed
Distance = 12 *10 =120
Time = 120 / 12
Time = 10
Please correct if me if I'm wrong
Answer:
y = 2x² + 16x + 11
Step-by-step explanation:
first foil (x + 4)² to get x² + 8x + 16
distribute 2 to get 2x² + 16x + 32
subtract 21 from 32
l = 2w + 4
l * w = 48
We can substitute l with its value:
2w + 4 * w = 48
2w^2 + 4w - 48 = 0
2(w^2 + 2w - 24) = 0
2(w+6)(w-4) = 0
w = {4, -6}
The answer should be obtuse. I'm not sure why it is saying it's incorrect but none of the other answers make sense.
