x = 30
y = 2
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Factoring is the process of finding the factors of polynomials
For our quadratic:
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Answer:
D. 64
Step-by-step explanation:
-2(square root of x) + 4 = -12
-2(square root of x) = -12 - 4
-2(square root of x) = -16
divide by negative 2 both sides
square root of x = 8
the we square both sides
(square root of x)^2 = (8)^2
therefore x = 64
Answer: (-6,-5)
Step-by-step explanation:
2x - 2y = -2 ............ equation 1
3x - y = -13 ................ equation 2
solving by substitution method
from equation 2 , make y the subject of the formula, we have
y = 3x + 13 .............. equation 3
substitute equation 3 into equation 1 , we have
2x - 2 (3x + 13 ) = -2
2x - 6x - 26 = -2
-4x - 26 = -2
-4x = -2 +26
-4x = 24
x = 24/-4
x = -6
substitute x = -6 into equation 3 to get the value of y , we have
y = 3(-6) + 13
y = -18 +13
y = -5
You can use the volume of pyramid B divided by volume of pyramid A and multiply 100%. That is 800/200*100%=400%. So the answer is D. 400%.