Solve the problem.Calculate the coordinates of the new location of the point (2, 0) when it is rotated 30° counterclockwise about the origin. Remember that it is the matrix 
that rotates a point 30° counterclockwise about the origin.
A. 
B. 
C. 
D. 
Answer: D
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Find an equation for the tangent to the curve at the given point.f(x) = 6
- x + 5, (36, 5)
A. y = 
x - 23
B. y = - 
x + 23
C. y = - 
x + 5
D. y = 5
Solve the problem.T and T' are similar triangles. Suppose that the base of T' is 5 times longer than the base of T. If the area of T' is 100 sq. in., what is the area of T?
A. 20 sq. in. B. 500 sq. in. C. 4 sq. in. D. 5 sq. in. E. none of these
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 
, g(x) = x5 + 8
A. No, yes B. Yes, no C. No, no D. Yes, yes
Solve.A researcher measured the weights of three substances in a laboratory: Substance A (22.01 g), Substance B (21.9 g), and Substance C (22.1 g). Which substance was the heaviest?
A. Substance C B. Substance A C. Not enough information D. Substance B