Answer:
answer is c
Step-by-step explanation:
Answer:
The third angle is 50°
Step-by-step explanation:
All three angles MUST equal to 180°
30 + 100 = 130
180 - 130 = 50
The third angle is 50°
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:
D
Step-by-step explanation:
3(x-2)+2x=3x+2x-6=5x-6