Use the quadratic formula to find the exact solutions.x2 - 14x + 58 = 0

A. 14 ± 6i
B. -7 ± 3i
C. 10, 4
D. 7 ± 3i


Answer: D

Mathematics

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Sketch the graph of f(x). Determine the domain, range, and the equation of the horizontal asymptote of the function.f(x) = ex - 4

A. Domain: (-?, ?), range: (0, ?)
Horizontal asymptote: y = 0

B. Domain: (-?, ?), range: (0, ?)
Horizontal asymptote: y = 0

C. Domain: (-?, ?), range: (-4, ?)
Horizontal asymptote: y = -4

D. Domain: (-?, ?), range: (0, ?)
Horizontal asymptote: y = 0

Mathematics

Find the weighted mean of the numbers in the table. Round to the nearest tenth.At a supermarket during the 6 p.m. rush, the manager counted the number of customers waiting in each of the 12 checkout lines. The results are shown in the table.

A. 5.2 customers B. 4.3 customers C. 4.5 customers D. 5.8 customers

Mathematics

State a sample space S with equally likely outcomes for the given experiment.A box contains 13 white cards numbered 1 through 13. List the sample space of the event choosing one card with a number greater than 6.

A. S = {7, 8, 9, 10, 11, 12, 13} B. S = {1, 2, 3, ... 13} C. S = {11} D. S = {6, 7, 8, 9, 10, 11, 12, 13}

Mathematics

Solve the problem.Bubba's Computer World sells personal computers. To advertise its computers to target groups, they advertise with x one-minute spots on local television at a cost of $216 per minute, and y one-minute spots on radio, at a cost of $180 per minute. Research shows that they sell one computer for every 3 minutes of television advertising, and one computer for every 6 minutes of radio advertising. Suppose the company has at most $45,000 to spend on advertising and that they sell at least 50 computers per month from this advertising. Graph the possible combination of television and radio spots and find the vertices. 

A.

B.

C.

D.

Mathematics