Pls help
2 answers:
Answer:
B
Step-by-step explanation:
Given
x² + 2x + 8 ( to find the solutions equate to zero )
x² + 2x + 8 = 0 ( subtract 8 from both sides )
x² + 2x = - 8
To solve we can use the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(1)x + 1 = - 8 + 1
(x + 1)² = - 7 ( take the square root of both sides )
x + 1 = ± = ± i
Subtract 1 from both sides )
x = - 1 ± i
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Answer:
Ratio of triangle AMN to square ABCD = 1/8
Step-by-step explanation:
area AMN = Area ABN - Area MNB
Where AB = BC = x
Area AMN = [ ½ *( x * ½x )] - [ ½( ½x * ½x)] = x²/8
Area of ABCD = x* x = x²
So therefore:
The ratio of area of triangle AMN to area of square ABCD would be
= (x²/8) / x²
=1/8
Answer:
0.55 = 55% probability that the construction job will be completed on time
Step-by-step explanation:
We have these following probabilities:
0.6 probability there is a strike. In this case, 0.35 probability that the construction will be completed on time.
1 - 0.6 = 0.4 probability that is not a strike. In this case, 0.85 probability that the construction will be completed on time.
What is the probability that the construction job will be completed on time?
0.55 = 55% probability that the construction job will be completed on time
Answer:
Slope= -7
Step-by-step explanation:
I like to use the rise/run method.
Take the point at (1,-2) and count up to (1, 7). Then because it is going left, you count your run over 3 points. Or you could do.