Answer:
2.5s
Step-by-step explanation:
At maximum height, dy/dx=0
dy/dx=-32t+80=0
32t=80
t=80/32
t=2.5s
Answer:
21 + 4(3^2 - 5 = 37
Step-by-step explanation:
When you adding equations
x+2y+x-2y=2-2
2x=0
x=0,
only one choice, correct answer is (0,1)
Answer:
28
Step-by-step explanation:
First you plug in your x, and y to get (2)(7)*2
Then you just have to times them all together and you get 2*7=14 then 14*2=28
