Answer:
a. 144 ft
b. 5 s
Step-by-step explanation:
h = -16t² + 64t + 80
a. This is a parabola, so the maximum height is at the vertex.
t = -64 / (2 × -16)
t = 2
h = -16(2)² + 64(2) + 80
h = 144
The apple reaches a maximum height of 144 ft.
b. 0 = -16t² + 64t + 80
0 = t² − 4t − 5
0 = (t + 1) (t − 5)
t = -1 or 5
t must be positive, so it takes 5 seconds to reach the ground.
Answer : 0.125 flyers per poster
Step-by-step explanation:
7/56 = 0.125
Answer:
$82
Step-by-step explanation:
If the coat is 1/3 off then you pay 2/3 of the price. To find a sale price, multiply the cost by 2/3.
123(2/3) = 246/3 = 82
Answer:10
Step-by-step explanation:
Answer:
1. Lets say that you get the coords. (1,2). X would be the first one (1), and Y would be the second number (2). if you got 2/1, then, because of rise/run, that 2 would be Y and 1 would be X
2. ?
3. Slope is rise/run (Y/X), and the Y intercept is where the line intercepts the Y axis.
I literally have no idea how to answer 2, but I hope that I helped a bit :)