Write the statement as a power function equation. Use k as the constant of variation.John kept track of the time it took him to drive to college from his home and the speed at which he drove. He found that the time t varies inversely as the speed r.
A. t = kr
B. r = kt
C. t = 
D. t = 
Answer: C
Mathematics
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 3x
A. 
B. - 
C. - 
D. 
Mathematics
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:At most 14.3 seconds
A. 16% B. 13.5% C. 50% D. 84%
Mathematics
Solve the number problem by finding the value of the unknown number.When twice a number is subtracted from 25, the result is 15.
A. 8 B. 12 C. 4 D. 5
Mathematics
Use a calculator to find the approximate value of the expression rounded to two decimal places.csc 83°
A. 0.92 B. 1.03 C. 1.01 D. 1.12
Mathematics