Answer:
y = 4(x - 2)² + 48
Step-by-step explanation:
Given
y = 4x² - 16x + 64
Using the method of competing the square
Factor out 4 from 4x² - 16x
y = 4(x² - 4x) + 64
add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = 4(x² + 2(- 2)x + 4 - 4 ) + 64
= 4(x - 2)² - 16 + 64
= 4(x - 2)² + 48
Answer:
A = 18 units²
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A = h ( b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
By counting squares
h = 3, b₁ = 3, b₂ = 9 , then
A = × 3 × (3 + 9) = 1.5 × 12 = 18 units²
Answer:
Step-by-step explanation:
Hope it is helpful...
The answer is 14 is 40% of 35
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