At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are indicated. Round to the nearest whole percent.Between 17 and 17.9 seconds
A. 16%
B. 2%
C. 1%
D. 14%
Answer: B
Mathematics
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Approximate the square root. Round to the nearest tenth, if needed.
A. 15.5 B. 15.2 C. 15.4 D. 15.3
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Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(x) = x2 - 4 on [-3, 7] divided into 5 subintervals
A. 
B. 40
C. 12
D. 8
Mathematics
Subtract.
A. 962 B. 862 C. 956 D. 988
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Write the complex number in rectangular form.8
A. 4 + 4
i
B. 
+ 
i
C. 4
+ 4i
D. 
+ 
i
Mathematics