Answer:
1/5
Step-by-step explanation:
Ax + by = C Is that what you need?
Ans：60degree （A）
as they are opposite to each other
Answer:
Rotation then dilation.
Step-by-step explanation:
Dilation changes the size. So the result is a similar not congruent triangle. The other transformations move the figure around on the plane.
Since it's a sample size, we use x, as the mean and s= standard deviation
_
Given: x =27, s = 2 and total sample = 32.
Probability that a recruit is at least 31 years old?
Let's calculate the Z score :
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X - x 31 - 27
Z = ----------- → Z = -------- → Z = 2 (now look up in the Z score table,
s 2
Area (Z=2) =0.9772 , but Z ≥ 2 (at least) , then :
Area (Z≥2) = Area (Z≤ - 2) = 0.0228
P(≥31)= 0.0228
