Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 31°, find the length of OU accurate to four decimal places. 
A. 1.1666
B. 0.8572
C. 1.9416
D. 0.5150
Answer: C
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Find the character of the roots.w2 - 4w + 6 = 0
A. Exactly one rational solution B. Two different irrational solutions C. Two different imaginary solutions D. Two different rational solutions
Find the tax. Use $3700 for each personal exemption; a standard deduction of $5800 for single people, $11,600 for married people filing jointly, $5800 for married people filing separately, and $8500 for head of a household; and the tax rate schedule. 
Megan Cortez had an adjusted gross income of $51,453 last year. She had deductions of $886 for state income tax, $570 for property tax, $3809 in mortgage interest, and $605 in contributions. Cortez claims one exemption and files as a single person.
A. $7520.75 B. $6595.75 C. $8063.25 D. $8988.25
Solve.2x2 + 9x = -2 + 15x
A. 
, 
B. 3 + 
, 3 - 
C. -3 + 
, -3 - 
D. 
, 
For the given functions f and g, find the indicated value.f(x) = x2 + 6x, g(x) = x + 2(f ? g)(4)
A. 72
B. 6
C. 42
D. 0