Find the cosine of ?.
?
?
?
A. 
B. 
C. 
?
D. 
?
E. 
?
Answer: B
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Solve the problem.Six times some number added to 7 is equivalent to 25 added to the product of 3 and the number.
A. 6 B. 18 C. -18 D. -6
Solve the problem.An object of mass m attached to a coiled spring with damping factor b is pulled down a distance a from its rest position and then released. Assume the positive direction of the motion is up and the period of the first oscillation is T. Write an equation that relates the distance d of the object from its rest position after t seconds. m = 15 g; a = 11 cm; b = 0.7 g/sec; T = 3 sec
What will be an ideal response?
Provide an appropriate response.The following proportion is not true. Change any one of the numbers in the proportion to make it true. 
What will be an ideal response?
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = x2 + 1 , g(x) = 
- 1
A. No, yes B. Yes, no C. No, no D. Yes, yes