Answer:
8 seconds
Step-by-step explanation:
Given
h = - 5t² + 40t
When the object hits the ground then h = 0
Substitute h = 0 into the function and solve for t
- 5t² + 40t = 0 ← factor out - 5t from each term
- 5t(t - 8) = 0
Equate each factor to zero and solve for t
- 5t = 0 ⇒ t = 0
t - 8 = 0 ⇒ t = 8
t= 0 denotes the time of launch
t = 8 denotes the time it hits the ground
Answer:
see below PLEASE GIVE BRAINLIEST
Step-by-step explanation:
18,000 - 6000 = 12,000
12,000 ÷ 450 = 26.66 = 26 days 16 hours
Answer:
5 + 5 =10
Step-by-step explanation:
it should have been 4 +6 = 10
T x -4
-25
The sign in the middle means "more than or equal to" or "at least"
