Answer:
c
Step-by-step explanation:
A score of 85 would be 1 standard deviation from the mean, 74. Using the 68-95-99.7 rule, we know that 68% of normally distributed data falls within 1 standard deviation of the mean. This means that 100%-68% = 32% of the data is either higher or lower. 32/2 = 16% of the data will be higher than 1 standard deviation from the mean and 16% of the data will be lower than 1 standard deviation from the mean. This means that 16% of the graduating seniors should have a score above 85%.
<u>Answer:</u>
Since the trianges are similar
then:
Formula: 1/2(πr²)
radius: 14/2=7
1/2(π x 7²)
So the Surface Area is: 76.96902001. Round it to the decimal point u want
Step-by-step explanation:
in fraction it comes 36/121
and in decimal.it comes 0.3
