Solve the system of linear equations. x + 6y = 3-6x + 7y = -18
A. (4, -1)
B. (4, 3)
C. No solutions
D. (3, 0)
Answer: D
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Solve. Round to two decimal places unless otherwise noted.If the average cost per unit C(x) to produce x units of plywood is given by 
what do 400 units cost?
A. $292.68 B. $299.98 C. $12,000.00 D. $60.00
Solve the problem.A ship sailing parallel to shore sights a lighthouse at an angle of 14° from its direction of travel. After traveling 4 miles farther, the angle is 24°. At that time, how far is the ship from the lighthouse? If necessary, round to the nearest hundredth of a mile.
A. 4 mi B. 5.57 mi C. 9.37 mi D. 2.38 mi
Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.f(x) = x5 - 15x4 - 3x3- 172x2 + 135x - 0.037
A. Approximate local maximum at 0.379; approximate local minimum at 12.565 B. Approximate local maximum at 0.375; approximate local minimum at -12.466 C. Approximate local maximum at 0.379; approximate local minima at -0.472 and 12.565 D. Approximate local maximum at 0.298; approximate local minima at -0.525 and -12.578
Classify the polynomial by the number of terms. Then identify the degree of the polynomial.-17xy5
A. Monomial of degree 5 B. Binomial of degree 5 C. Monomial of degree 1 D. Monomial of degree 6