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 15.2 and 16.1 seconds
A. 14%
B. 68%
C. 34%
D. 50%
Answer: C
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Factor out the greatest common factor.6m(9 - m) + 5n(9 - m)
A. m(6 + 5n)(9 - 1) B. No common factor (except 1) C. (6m - 5n)(9 - m) D. (6m + 5n)(9 - m)
Write down all the subsets of the given set.{1, 4, 8, 12}
A. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12} B. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, ? C. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {8, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12}, ? D. {1}, {4}, {8}, {12}, {1, 4}, {1, 8}, {1, 12}, {4, 8}, {4, 12}, {1, 4, 8}, {1, 4, 12}, {1, 8, 12}, {4, 8, 12}, {1, 4, 8, 12}, ?
Graph the function.f(x) = 5 - e-0.31x
A. 
B. 
C. 
D. 
Explain the mistake, then solve the problem correctly.What percent of 80 is 10? 
What will be an ideal response?