Solve the problem.Let f(x) be the function represented by the dashed line and g(x) be the function represented by the solid line. Solve the equation f(x) < g(x).
A. x > -2
B. x < -2
C. x < 2
D. x > 2
Answer: D
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Show that the equation is not an identity by listing the value(s) of the variable from among 0, 
, 
, and - 
for which the equation is false.(sin ? + cos ?)2 = 1
A. 0 and 
B. - 
C. 
and - 
D. 
Use a power regression model for the following data to estimate 
. Round your answer to two decimal places.
x 2.03 3.38 4 6.49 7.6 y 8.15 4.55 4.62 3.92 4.17?
A. 3.30 B. 0.10 C. -0.63 D. 3.71
Solve the problem.A size 44 dress in Country C is size 2 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find a formula for the inverse of this function.
A. f-1(x) = 2(x + 20) B. f-1(x) = 2(x - 20) C. f-1(x) = x + 20 D. f-1(x) = 2x + 20
Find the indicated term for the arithmetic sequence.10, 15, 20, . . . ; a20
A. 105 B. -85 C. 110 D. -90