Find cos A in the right triangle below.
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A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
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Find the tax in the following application problems. Use $4050 for each personal deduction, a standard deduction of $6300 for single taxpayers, $12,600 for married taxpayers filing jointly, $6300 formarried taxpayers filing separately, and $9300 for head of household and the tax rate schedule.
Lilly Donaldson had wages of $31,706, other income of $2,962, dividends of $213, interest of $328, and a regular IRA contribution of $839 last year. She had deductions of $1,271 for state income tax, $1,440 for property tax, $1,460 in mortgage interest, and $713 in contributions. Donaldson claims three exemptions and files as head of household.
A. $-114,399.60 B. $1,275.50 C. $1,870.00 D. $393.00
Perform the indicated operations.4.8 + 1.23
A. 6.03 B. 1.71 C. 5.823 D. 5.31
Expand the expression.log8 xy
A. log4 x + log4 y B. log8 x - log8 y C. log8 x + log8 y D. log4 x - log4 y
Evaluate the following improper integral whenever it is convergent.
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A. -6 B. 11 C. 3 D. 7 E. the integral is divergent