Answer:
h=3.5
Step-by-step explanation:
divide 28 by 8
hope I helped
Answer:
(x + 3)(x - 3)
Step-by-step explanation:
Use difference of squares property:
(x + 3)(x - 3)
Answer:
D) Vertex: (-2,-8); maximum
Step-by-step explanation:
y = -2x² - 8x - 16
The negative on the first term tells us that the vertex will be a maximum
vertex occurs when the derivative is set to zero
y' = -4x - 8
0 = -4x - 8
8 = -4x
x = -2
y = -2(-2)² - 8(-2) - 16
y = -8 + 16 - 16 = -8
4a-9b=22
substitute b=-2
4a -9(-2) = 22
4a +18 =22
subtract 18 from each side
4a = 4
divide by 4
a =1
Choice C
