If 3 centimeters is equal to 30 millimeters, how many centimeters are in 140 millimeters?
2 answers:
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Answer:
21, 144, 12
Step-by-step explanation:
Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.
Let X be the distance in yard.
i.e. each entry of x is multiplied by 3.
New mean variance std devition would be
E(3x) =
Var (3x) =
Std dev (3x) =
Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9
Answer:
x = 31.8°
Step-by-step explanation:
Applying the Law of Sines, we have:
Multiply both sides by 12
x = 31.8° (nearest tenth)