Solve the problem.How many different sequences of 4 digits are possible if the first digit must be 3, 4, or 5 and if the sequence may not end in 000? Repetition of digits is allowed.
A. 2,000
B. 1,512
C. 2,997
D. 2,999
Answer: C
Mathematics
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Perform the indicated operation. Write the answer in scientific notation.
A. 5.5 × 1021 B. 5.5 × 1013 C. 6.6 × 105 D. 5.5 × 105
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Find the nth, or general, term.9, 3, 1, . . .
A. 3(n - 1) B. 3n-1 C. 33-n D. 3n
Mathematics
Graph the ordered pair on a polar coordinate system.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Use the law of Cosines to solve the given triangle. Round your answer to two decimal places. ? A = 50°, b = 4, c = 15 ?
A. a ? 15, B ? 13.85°, C ? 116.15° B. a ? 12.80, B ? 116.15°, C ? 13.85° C. a ? 4, B ? 13.85°, C ? 116.15° D. a ? 15, B ? 15.85°, C ? 114.15° E. a ? 12.80, B ? 13.85°, C ? 116.15°
Mathematics