Answer:
The minimum amount of rubber needed is 1,134 square inches
Step-by-step explanation:
we know that
The surface area of a sphere (basketball ) is given by the formula
we have
----> the radius is half the diameter
substitute
Multiply by 4 (because are four basketballs)
therefore
The minimum amount of rubber needed is 1,134 square inches
All you have to do is multiply length x width x height
9.71 x 2.74 x 4.23 = 112.54 
To compute for the probability value of P-value, we need to see first as to how is 3 years from the given mean value.
So, for this case we have (3 - 4) = 1 below the standard deviation of 0.8. Thus, the z -score for this would me z < -1/0.8 = -1.25.
Given a z-score of z < -1.25. Using the table chart for the P-values, we have P(z < -1.25) = 0.1056. Meaning there is a 10.56% chance that a CD will last for less than 3 years.
Thus, probability is 10.56%<span>.</span>
To make a reflection over the y axis, make the whole equation negative.
The new equation should look like this:
f(x) = -x^3
