Complete the square
first isolate x terms
y=(x^2-4x)-9
complete square inside (take 1/2 of square of b )
-4/2=-2, (-2)^2=4
add 4-4 inside
y=(x^2-4x+4-4)-9
complete the square
y=((x-2)^2-4)-9
y=(x-2)^2-4-9
y=(x-2)^2-13
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Answer:
Step-by-step explanation:
Hence, x = -36
Answer:
45 square inches
Step-by-step explanation:
We are told that a terrarium is constructed in a triangular prism shape with the following 10 inches tall and 450 cubic inches in volume.
We are asked to calculate the area of the base shape of the prism, we know that the volume of any triangular prism is equal to the area of the base times the height therefore:
450 = W × 10
we solve for A:
A = 450/10
A = 45
Which means that the base area is 45 square inches
3/7 is the least, 4/5 is the middle, 5/6 is the greatest.
