Answer:
Step-by-step explanation:
Given: d = -16t² + 12t
To find: t using quadratic formula
If we have quadratic equation in form ax² + bx + c = 0
then, by quadratic formula we have
Rewrite the given equation,
-16t² + 12t - d = 0
from this equation we have,
a = -16 , b = 12 , c = d
now using quadratic formula we get,
Therefore,
I don’t know the answer but I recommend using photomath
Answer:
A
Step-by-step explanation:
The net can be folded to form a pyramid
Answer:
f(x) = 6x + 9.
Step-by-step explanation:
y - 6x - 9 = 0
y = 6x + 9.
So that would be:
f(x) = 6x + 9.
Answer: False. 21 Shelves.
Step-by-step explanation:
First, 12 x 31= 372
This indicates that there are 372 books.
Then, 372 ÷ 18= 20.6666666667
Since we have a decimal that is above 4 we round up.
This leaves 21 shelves needed for all the books o fit on a shelf.