Answer:
t = 3 seconds
Step-by-step explanation:
Here h(t) = -16t^2 + 144.
When the quarter hits the ground, its height will be 0 feet. Letting h(t) = 0 results in -16t^2 + 144 = 0, or 16t^2 = 144, or
144
t^2 = ------------ = 36/4 = 9 seconds^2
16
Therefore, the time, t, required for the quarter to hit the ground is t = √9, or t = 3 seconds
Answer:
D
Step-by-step explanation:
Perimeter formula : P = 2l + 2w
l = 14
68 = 28 + 2w
2w = 40
w = 20
Area formula : l * w
14 * 20 = 280
She used the associative property of addition
it allows you to group the numbers in any way you want and still get the same answer
its ez
Step-by-step explanation:
do 2x × -x and you will have the answer
Answer:
A. x + 200 = 450
Step-by-step explanation:
Since clara deposited $200 into her savings account and it brought her account up to $450, to find the answer you would add "x" with 200 and you should get 450 which means x= 250. we can check our answer by solving : 450-200 and you should get 250 for your answer so the answer is
A x + 200 = 450
