Identify the independent variable and the dependent variable.Let A be the age (in years) of a car, and let c be the annual cost of maintenance (in dollars) for the car.
A. independent: A; dependent, c
B. independent: c; dependent, A
Answer: A
Mathematics
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Find the period.y = 5 sin(6?x + 4)
A. 
B. 
C. 6?
D. 
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does sin x = -1?
A. 
, 
B. ?
C. 
D. none
Mathematics
Solve the equation on the interval [0, 2?).2 sin2 x = sin x
A. 
, 
B. 0, ?, 
, 
C. 
, 
, 
, 
D. 
, 
Mathematics
Solve.Starting at point A, a ship sails 58 km on a bearing of 217°, then turns and sails 67 km on a bearing of 329°. Find the distance of the ship from point A.
A. 137 km B. 125 km C. 70 km D. 12 km
Mathematics