Write the phrase as a variable expression. Use x to represent "a number."The product of 18 and a number, added to 14
A. 14 + 18x
B. 18 + 14x
C. 252x
D. 252 + x
Answer: A
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The algebraic expression s2 gives the area of a square, where s represents the length of one of its sides. Use this information to find the area of the square.
19 cm
A. 356 sq cm B. 361 sq cm C. 76 sq cm D. 722 sq cm
Solve the problem.Encode the following message: Do not give upBreak the message into groups of two letters and use the matrix M =
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B. ,
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C. ,
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D. ,
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Match the graph to the function listed whose graph most resembles the one given.
A. constant function B. absolute value function C. linear function D. reciprocal function
Find the open intervals where the function is concave upward or concave downward. Find any inflection points.
A. Concave upward on (-?, -1) and (1, ?); concave downward on (-1, 1); inflection points at (-3, -5), (0, -1), and (2, -2) B. Concave upward on (-?, -1) and (2, ?); concave downward on (-1, 2); inflection point at (0, -1) C. Concave upward on (-?, -1) and (1, ?); concave downward on (-1, 1); inflection points at (-1, -3) and (1, -2) D. Concave upward on (-?, -3) and (2, ?); concave downward on (-3, 2); inflection points at (-1, -3) and (1, -2)