Answer:
Step-by-step explanation:
we have totally 7+3+6=16 books.
let us choose one book from the all these books;
by using permutation formula we will get the answer
all these process are related to each other so we should multiply them
7*3*6=126
If they are next to each other, they multiply.
Here is the answer buddy
124.32
N=11
I’m not 100% sure
Hoped this helped
Answer:
B
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (3, - 20), thus
y = a(x - 3)² - 20
To find a substitute (7, 12) into the equation
12 = a(7 - 3)² - 20
12 = 16a - 20 ( add 20 to both sides )
32 = 16a ( divide both sides by 16 )
2 = a, thus
y = 2(x - 3)² - 20 ← expand using FOIL
y = 2(x² - 6x + 9) - 20 ← distribute and simplify
y = 2x² - 12x + 18 - 20
y = 2x² - 12x - 2 → B
