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2 answers:
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Answer:
A)
B)
C)
Step-by-step explanation:
Given the exponential expression, :
A) is equivalent to
due to the Product Rule of exponents:
.
Next, apply the Power-to-Power Rule of exponents: .
B) is equivalent to
due to the Power-to-Power Rule of exponents:
.
.
C) is equivalent to
due to the Product-to-Power Rule of exponents:
.
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
The slope is
So, the equation is
The y-intercept is when x=0, so