Solve the problem.Use the graphs of y = - 
x + 5 and y = 
x + 1, that are provided, to solve the equation 
A. 3
B. 5
C. 4
D. 6
Answer: C
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Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.4, -12, 36, -108, 324, . . .
A. yes, 12
B. yes, - 
C. no
D. yes, -3
Which of the following physical situations would best be modeled by the graph?
A. The length y of a shadow cast by a horizontal flagpole on a vertical wall between sunrise and noon, where t is the angle shown.
B. The monthly average ocean temperature y in degrees Fahrenheit during month t, where t = 1 corresponds to January.
C. The number of hours y of sunlight during month t, where t = 1 corresponds to January.
D. The length y of a shadow cast by a tree between sunrise and noon, where t is the angle of elevation of the sun.
Suppose 500 coins are tossed. Using the normal curve approximation to the binomial distribution, find the probability of the indicated results.251 heads or less
A. .552 B. .448 C. .536 D. .548
Write interval notation.{x? x > -7}
A. (-?, -7) B. (-7, ?) C. [-7, ?) D. (-?, -7]