Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
A. 
B. 
C. y9
D. 
Answer: B
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Solve the problem. Find the magnitude of the torque in foot-pounds at point P for the following lever:
= 4 in. and 
= 5 lb
A. 
ft-lb
B. - 
ft-lb
C. 
ft-lb
D. 
ft-lb
Find all points where the function is discontinuous.
A. x = 1 B. x = -2 C. x = -2, x = 1 D. None
Identify the number as real, complex, pure imaginary, or nonreal complex. More than one of these descriptions may apply.
A. complex, pure imaginary B. complex, nonreal complex C. real, complex D. pure imaginary
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.
Brian Moss had wages of $80,745, dividends of $374, interest of $684, and adjustments to income of $1,066 last year. He had deductions of $878 for state income tax, $452 for city income tax, $988 for property tax, $7,336 in mortgage interest, and $182 in contributions. He claims three exemptions and files as head of household.
A. $8,985.25 B. $8,362.65 C. $10,051.75 D. $3,387.75