Solve the polynomial inequality and graph the solution set on a number line.x2 + 14x + 49 ? 0
A. (-?, ?)
B. (-?, -7]
C. [-7, ?)
D. ?
Answer: A
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Solve the problem.The expression 50b + 240 describes the cost of materials for an X24 computer chip, where b is the number of chips produced. The expression 20b + 700 describes the labor costs. How many chips can be produced with a total budget of $4370?
A. 49 chips B. 51 chips C. 46 chips D. 59 chips
Solve the problem.In a certain location, the highest temperature recorded was 101°F. The lowest temperature recorded was 137 degrees less than the highest. What was the lowest temperature?
A. -138°F B. 0°F C. 36°F D. -36°F
Factor completely.ab4 - 4a3b2
A. ab4 - 4a3b2 B. ab2(b - 2a)2 C. a(b2 + 2ab)(b2 - 2ab) D. ab2(b + 2a)(b - 2a)
Given f (x, y) = cos (e2x+ y ), find ?2f / ?x?y
What will be an ideal response?