Find the vertex: -4x^2 + 16x - 7
Vertex = ( x, f(x)).
x = -b/2a
x = -16/2(-4)
x = -16/-8
x = 2
f(x) = -4x^2 + 16x - 7
Let x = 2
f(2) = -4(2)^2 + 16(2) - 7
f(2) = -4(4) + 32 - 7
f(2) = -16 + 32 - 7
f(2) = 16 - 7
f(2) = 9
Vertex = (2, 9)
12+2+8+6+57=85
85/5= 17
mean=17
Answer:
6 2/3 or 20/3
Step-by-step explanation:
Brainliest pls?
540-35x= y
540 is the amount she has minus 35 and x is the weeks she withdrawn the money and y is the answer.
-13m = -377
m= -377/-13
m=29
the negatives cancel out. so just do 377/13 which equals 29
