Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = 2t
A. 
B. 
C. 2t
D. 
Answer: D
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Find dy/dt.y = cos7(?t - 20)
A. 7 cos6(?t - 20) B. -7? cos6(?t - 20) sin(?t - 20) C. -7 cos6(?t - 20) sin(?t - 20) D. -7? sin6(?t - 20)
Provide an appropriate response. Multiply: 9x3(yz2 - z)
A. 9x3yz2 - 9x3 B. 9x3yz2 - 9x3z C. 9x3yz2 + 9x3z D. 9xyz
Solve. Write a mixed numeral for the answer.A road acceleration test measures the time in seconds required to go from 0 mph to 60 mph. The results for five cars were as follows: 6
sec, 7
sec, 8
sec, 6
sec, and 7
sec. What was the average time?
A. 7
sec
B. 7
sec
C. 7
sec
D. 7
sec
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2; r = 6, ? = 3.14
A. A = 9.14 B. A = 59.16 C. A = 113.04 D. A = 18.84