Solve the equation by completing the square.w2 + 2w = 35
A. 5, -7
B. ± 6
C. -28, -7
D. -5, 7
Answer: A
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Simplify the expression.
4
A. 312
B. 
C. 39
D. 
Write the equation of a sine function that has the given characteristics.Amplitude: 4Period: 5?Phase Shift: 
A. y = 4 sin
B. y = 4 sin
C. y = 4 sin
D. y = 4 sin
Solve the problem.The table lists the average composite scores on a national entrance exam for selected years. 
Make a line graph of the data. If the graph represents a piecewise-linear function f, find a symbolic representation for the piece of f located on the interval 
A. f(x) = 122.7 if 1988 ? x ? 1990
B. f(x) = 0.75x - 1358 if 1984 ? x ? 1988
C. f(x) = 4.4x - 8606.9 if 1988 ? x ? 1990
D. f(x) = 131.5 if 1984 ? x ? 1986
Roland had $10,500 in medical expenses last year and has no medical insurance. The IRS allows medical expense deductions for the amount that exceeds 7.5% of a taxpayer's adjusted gross income. If Roland's adjusted gross income is $31,000, how much can he claim as a medical deduction?
A. $10,500 B. $8,175 C. $7,500 D. $750