A point on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function.
?Find cot ?.
A. -
B. -2
C. - 
D. 
Answer: C
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Use a calculator to evaluate the expression.(-4.7)12
A. -116,191,483 B. -56.4 C. 56.4 D. 116,191,483
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 128 feet per second and the gorge is 240 feet deep, during what interval can the flare be seen? Use the formula h(t) = -16t2 + v0t + h0.
A. The flare can be seen between 6 sec and 8 sec. B. The flare can be seen between 3 sec and 5 sec. C. The flare can be seen between 9 sec and 11 sec. D. The flare can be seen up to, but not including, 3 sec.
Solve the system of equations by the substitution method. x - 7y = -645x - 8y = -77
A. {(1, 10)} B. {(-1, 9)} C. {(-2, 10)} D. ?
Determine whether f and g are inverses by determining whether 
and 
f(x) = x + 8, g(x) = x - 8
A. Yes B. No