You can round 396 to 400 and 71 to 70. then you just multiply them and get 28,000. :))
The equation is:
h ( t ) = - 16 t² + 60 t + 3
The toy rocket will reach the ground when: h ( t ) = 0
- 16 t² + 60 t + 3 = 0

t 1 = - 0.05
t 2 = 3.8
Answer:
C ) 3.80 s
Answer:
1.00 cm Is the greatest level of precision possible for the measurement of the width of the spin of the book
Answer:
Step-by-step explanation:
the anser is 315,000
Answer:
see explanation
Step-by-step explanation:
1 revolution is equivalent to the circumference of the wheel
1 revolution = πd ( d is the diameter )
= 70π cm
50 revolutions = 70π × 50 = 3500π cm = 35π m ≈ 110m ( nearest metre )