Perform the indicated operation. Use the form for vectors.v = <-6, -7>, w = <9, -1>, u = <3, -4>; Find v + w - 8u.
A. <-5, 8>
B. <-13, 8, 8>
C. <6, -12>
D. <-21, 24>
Answer: D
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Solve the equation by factoring.x2 - 7x - 18 = 0
A. {-2, 9} B. {-2, -9} C. {2, 9} D. {2, -9}
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.75 as soon as you get in the taxi, to which a charge of $1.75 per mile is added. Find a linear equation that can be used to determine the cost, y, of an x-mile taxi ride, and use this equation to find the cost of a 4-mile taxi ride.
A. $9.63 B. $9.75 C. $10.65 D. $9.93
Solve the problem.A taxpayer's property has a market value of $104,000. The rate of assessment in the area is 60%. The tax rate is $3.34 per $100 of assessed valuation. Find the property tax.
A. $2014.69 B. $2146.56 C. $2084.16 D. $2118.90
Determine the real solutions to the system of nonlinear equations.2x2 + y2 = 173x2 - 2y2 = -6
A. (1, 3), (-1, -3) B. (2, 3), (2, -3), (-2, 3), (-2, -3) C. (1, 3), (1, -3), (-1, 3), (-1, -3) D. (2, -3), (-2, 3)