Graph the function.y = -3 cos x 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The position (in centimeters) of an object oscillating up and down at the end of a spring is given by 
at time t (in seconds). The value of A is the amplitude of the motion, k is a measure of the stiffness of the spring, and m is the mass of the object. Find the object's acceleration at time t.
A. a = - A sin 
cm/sec2
B. a = 
cos 
cm/sec2
C. a = - A
sin 
cm/sec2
D. a = - 
sin 
cm/sec2
Interpret the meaning of the slope and the y-intercept of the equation in terms of the conditions stated in the problem.The value, in dollars, of a particular KX37B computer is given by y = -425.15x + 5933, where x is the number of years the computer has been in existence.
A. -425.15 signifies the hourly cost of repairs, and 5933 signifies the cost of software. B. -425.15 signifies the number of computers owned, and 5933 signifies the cost of electricity. C. 5933 signifies the amount of depreciation in one year, and -425.15 signifies the initial cost. D. -425.15 signifies the amount of depreciation in one year, and 5933 signifies the initial cost.
Solve the following system of equations by graphing. Write the solution as an ordered pair or state that the system has no solution or infinitely many solutions.
A. no solution B. (1, -5) C. (1, 5) D. (-5, 1)
Simplify the expression. Leave answers with exponents.- 
2
A. - 
B. - 
C. - 
D. - 