James had 4 friends coming over his house. He want's to give each of his friends 5 cookies. How many cookies will he need?
4 times 5= 20
He will need 20 cookies
Answer:
the answer is 8
Step-by-step explanation:
i got this right on my question
Answer:
-26
Step-by-step explanation:
Plug in 12 for n.
-4-2(12-1)
-4-2(11)
-4-22
-26
Answer:
3 seconds
Step-by-step explanation:
When the ball hits the ground, the height will be 0. Therefore, you can substitute 0 in for the value of f(t), hence the equation will be:
0 = -16t^2 + 32t + 48
You can then factor out -16:
0 = t^2 - 2t - 3
Factor:
0 = (t-3)(t+1)
t = 3, -1
However -1 is an extraneous solution because time cannot be negative. Therefore, the answer is 3 seconds.