Answer: 169
Step-by-step explanation:
You just multiply 13 by 13
The volume of cement is 420 cubic foot. Hope you get it!
f(x) = (x -
)² - 
the equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 )
then the x- coordinate of the vertex is
= - 
f(x) = x² - 11x + 9 is in standard form
with a = 1, b = - 11 and c = 9
= -
= 
substitute this value into the equation for y- coordinate
y = (
)² - 11(
) + 9
=
-
+
= - 
f(x) = (x -
)² -
← in vertex form
Answer:
A.2) 
B.2) 
C.1) It is Wednesday and there are not students in the library.
Step-by-step explanation:
Hope this helped!
brainliest please!