Perform the division.

A. 5r2 - 2r - 6
B. r2 + 6r + 2
C. 5r2 + 2r + 
D. 5r2 + 2r + 6

Answer: D

Mathematics

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Use implicit differentiation to find dy/dx.x = sec(10y)

A.  sec(10y) tan(10y)
B. cos(10y) cot(10y)
C.  cos(10y) cot(10y)
D. 10 sec(10y) tan(10y)

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Mathematics

Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v =  sin , s(?2) = 2

A. s = -2 cos  + 3.3073
B. s = -2 cos  + 4
C. s = -2 cos  + 8.2134
D. s = 2 cos  + 4

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Mathematics

Solve the problem.Total profit is defined as total revenue minus total cost. R(x) and C(x) are the total revenue and total cost respectively from the sale of x televisions. If  and   find the profit from the sale of 50 televisions.

A. $4750 B. $6250 C. $22,250 D. $20,750

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Mathematics

A plane flying horizontally at an altitude of 1 mi and a speed of 550 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station.

Select the correct answer. a. ? 476 mi/h b. ? 670 mi/h c. ? 455 mi/h d. ? 570 mi/h e. ? 495 mi/h

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Mathematics