Write using exponential notation.20 ? 20 ? 20 ? 20 ? 20
A. 520
B. 5 ? 20
C. 205
D. 5 ? 520
Answer: C
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Provide an appropriate response.True or False? The earthquake magnitude scale relates the magnitude to the amount of energy released.
A. False B. True
In a biology class, the following test scores were recorded for a student: 73, 65, 61, 61, 73, 75. Find the mean, median, and mode for the data.
A. mean: 68, median: 69, mode: 61 and 73 B. mean: 69, median: 69, mode: 61 C. mean: 69, median: 68, mode: 73 D. mean: 68, median: 61, mode: 75
Match the function with its graph.1) y = - tan 
2) y = tan 
3) y = - cot 
4) y = cot 
A) B)
height="200" width="200" />C) D)
A. 1A, 2D, 3B, 4C
B. 1D, 2A, 3C, 4B
C. 1A, 2B, 3C, 4D
D. 1C, 2B, 3D, 4A
Solve the system by graphing.6x + y = -24 x + 4y = -27
A. {(3, -6)} B. {(-3, -4)} C. {(-3, -6)} D. {(-5, 6)}