Answer:
Below in bold.
Step-by-step explanation:
f(x) = 1/2x^2 + 4x
Convert to vertex form:
f(x) = 1/2(x^2 + 8x)
= 1/2 [(x + 4)^2 - 16]
= 1/2(x + 4)^2 - 8 <------ Vertex form.
So the Vertex is at (-4, - 8).
Axis of symmetry is x = -4.
y -intercept (when x = 0) = 8-8 = 0.
You could compare by simplifying 3/8. get the decimal by dividing 3 by 8 to get .375
Answer:
100
Step-by-step explanation:
just took the test
<h3>Solution:-</h3>
⟹( 4x + 3 )( 2x - 5 )
⟹( 4x × 2x ) - ( 4x × - 5) + ( 3 × 2x )-( 3×-5 )
⟹8x²- ( - 20x ) + 6x - ( - 15 )
⟹8x² + 20x + 6x + 15
<h3>⟹8x² + 26x + 15</h3>
Ht of ceiling = 10 ft which is two-thirds of living rm ceiling
Ht of living rm ceiling = 2/3x = 10 ft
2/3h = 10 ft
2/3h times 3/2 to solve for h = 10 times 3/2
h = 30/2
h = 15 ft