Answer:
x = ±2sqrt(15)
Step-by-step explanation:
x^2 = 60
Take the square root of each side
sqrt(x^2) = ±sqrt(60)
x = ±sqrt(60)
x = ±sqrt(4 *15)
x = ±2sqrt(15)
Answer:
B, D
Step-by-step explanation:
These are the correct answers.
Answer:
1 1/2 hours
Step-by-step explanation:
19m = 1/2h
57m = xh
19 = 1/2
57 = x
19x = 1/2 (57)
19x = 28.5
÷19. ÷19
x = 1 1/2