When possible, apply the distributive law and combine like terms.5(2x + 8) - (3x - 2)

A. 7x + 6
B. 7x + 42
C. 7x + 10
D. 7x + 38


Answer: B

Mathematics

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Express the following in interval notation.10 ? x > -4

A. (-?, -4] ? (10, ?) B. (-4, 10] C. [-4, 10) D. (-?, -4) ? [10, ?)

Mathematics

A manufacturing company wants to maximize profits on products A, B, and C. The profit margin is $3 for A, $6 for B, and $15 for C. The production requirements and departmental capacities are as follows: What is the maximum profit if the profit margin on A changes to $7.00?

A. $225,000 B. $266,000 C. $105,000 D. $98,000

Mathematics

Solve the problem.A barge is located 200 feet away from the coastline 1200 feet down the coast from a power source at point A. To supply the barge with electricity, a power line will be run from point A to a point B on the coast and then from point B to the barge. If power lines on land coast $3 per foot and power lines under water cost $5 per foot, calculate the total cost of running a power line from point A to the barge when point B is 800 feet down the coast from point A in the direction of the barge. Recalculate the total cost when the distance from A to B is increased in 50-foot increments, until you locate a possible minimum cost. Interpret your solution.

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Mathematics

Select the graph of the polar equation using symmetry, zeros, maximum r-values, and any other additional points. ? ?

A. Symmetric with respect to , polar axis, pole

Circle with radius

?


B. Symmetric with respect to , polar axis, pole

Circle with radius

?


C. Symmetric with respect to , polar axis, pole

Circle with radius

?


D. Symmetric with respect to , polar axis, pole

Circle with radius

?


E. Symmetric with respect to , polar axis, pole

Circle with radius

?


Mathematics