Simplify the expression.6g + 22 - 5
A. 6g + 17
B. 23g
C. 6g - 17
D. 6g + 27
Answer: A
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Solve the problem.Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 19 seconds to try each one, how long would it take to try every possibility?
A. 285 minutes B. 9.5 minutes C. 31.7 minutes D. 316.7 minutes
Find the inverse of the function.f(x) = -x2 + 12, x ? 0
A. f-1(x) = 
B. f-1(x) = - 
C. f-1(x) = x2 + 12
D. f-1(x) = 
Find the nth term an of the geometric sequence.2, 
, 
, 
, 
, . . .
A. an = (2)
n-1
B. an = (2)
n+1
C. an = (2)
n
D. an = (2)
n-1
Identify the conic that the polar equation represents. Also, give the position of the directrix.r =
A. ellipse, directrix perpendicular to the polar axis 2 left of the pole B. ellipse, directrix perpendicular to the polar axis 2 right of the pole C. hyperbola, directrix perpendicular to the polar axis 2 left of the pole D. hyperbola, directrix perpendicular to the polar axis 2 right of the pole