Write the first five terms of the geometric sequence whose first term, a1, and common ratio, r, are given.a1 = 5; r = 3
A. 15, 45, 135, 405, 1215
B. 3, 15, 75, 375, 1875
C. 5, 15, 45, 135, 405
D. 5, 8, 11, 14, 17
Answer: C
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The augmented matrix is in row-echelon form and represents a system of linear equations. Solve the system using backward substitution.
Write the solution as an ordered triple, if possible.
A. (-5, 1, 2) B. (2, -7, -17) C. No solution D. (17, -7, 2)
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what times was the temperature below 77°F?
A. after 3 p.m. B. from 12 p.m. until 3 p.m C. from 9 a.m. until 12 p.m. and from 3 p.m. until 6 p.m. D. from 9 a.m. until 11 a.m. and from 3 p.m. until 6 p.m.
Match the system of inequalities with one of the graphs.x2 + y2 < 16 y ? 1
A. 
B. 
C. 
D. 
Provide an appropriate response.Find a cofunction equivalent to sin
.
A. sin 
B. cos 
C. sin 
D. cos 