Determine whether or not the function is one-to-one.
A. Yes
B. No
Answer: A
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Find a particular solution for the differential equation.
= 
; y = 9 when x = 1
A. y = ln x + 7 B. y = ln x + 9 C. y = 23 ln x + 11.5 D. y = 23 ln x + 9
Provide an appropriate response. Solve the following using a constant of variation:A gear measures 8 in. across. It turns another gear 6 in. across. If the larger gear has a speed of 30 revolutions per minute (rpm), what is the rpm of the smaller gear?
A. 40 rpm B. 22.5 rpm C. 13 rpm D. 1.6 rpm
Solve the problem.Cory and Melissa are racing electronic cars around a circular track. They begin at the same time going in the same direction. Cory's car completes a revolution in 55 seconds, while Melissa's car completes a revolution in 50 seconds. How long will it take them before both cars reach the starting point again simultaneously?
A. 1100 seconds B. 110 seconds C. 550 seconds D. 220 seconds
Estimate the value of 
by using three iterations of Newton’s method to solve the equation 
with initial estimate 
Round your final estimate to four decimal places.
a. 2.2361 b. 2.4134 c. 1.71 d. 1.8532