Provide an appropriate response.Use a calculator to find cos 31°. Round to four significant digits.
Fill in the blank(s) with the appropriate word(s).
0.8572
Mathematics
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Express as a single logarithm and, if possible, simplify.log4 12 + log4 9
A. log4 21 B. log8 108 C. log8 21 D. log4 108
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.9x2 - 39x - 30
A. 3(3x + 2)(x - 5) B. (9x + 6)(x - 5) C. prime D. 3(3x - 2)(x + 5)
Mathematics
Determine whether the given angles are complementary, supplementary, or neither.
A. supplementary B. complementary C. neither
Mathematics
Solve the problem. Round to the nearest tenth of a percent, if necessary.Last year, Maria earned $349 per week. This year, her salary increased to 
per week. What is the percent of increase?
A.
| 90% |
B.
| 9.1% |
C.
| 90.9% |
D. 10%
Mathematics