Solve.A computer compiles a program in 0.0000887 seconds. Write this in scientific notation.
A. 8.87 × 104
B. 8.87 × 10-5
C. 8.87 × 10-6
D. 8.87 × 10-7
Answer: B
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Use a tree diagram showing all possible results when a die is rolled twice. List the ways of getting the following result.At least one die shows a 3.
A. (3, 1),(3, 2),(3, 4),(3, 5),(3, 6), (1, 3), (2, 3), (4, 3), (5, 3), (6, 3) B. (3, 1),(3, 2),(3, 4),(3, 5),(3, 6) C. (3,3) D. (3, 1),(3, 2),(3, 3), (3, 4),(3, 5),(3, 6), (1, 3), (2, 3), (4, 3), (5, 3), (6, 3)
Solve.A radio telescope has a parabolic surface. If it is 1 m deep and 
wide, how far is the focus from the vertex?A = 12 mB = 1 m
A. 3 m B. 9 m C. 36 m D. 1 m
Graph the equation by plotting points.y = 
A. 
B. 
C. 
D. 
Find the first term and the common ratio of the geometric sequence.an = -40(0.4)-n
A. a1 = 16, r = 16 B. a1 = -100, r = 0.4 C. a1 = 100, r = 2.5 D. a1 = -16, r = -2.5