Solve the inequality. Graph the solution set and write it in interval notation.x + 7 < 15

A. [8, ?)

B. (8, ?)

C. (-?, 8]

D. (-?, 8)


Answer: D

Mathematics

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Use the graph of f to sketch a graph of the inverse of f using a dashed curve.

A.

B.

C.

D.

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The graph that follows is the graph of a polynomial function. (i) What is the minimum degree of a polynomial function that could have the graph? (ii) Is the leading coefficient of the polynomial negative or positive? 

A. (i) 3 (ii) Positive B. (i) 3 (ii) Negative C. (i) 2 (ii) Negative D. (i) 2 (ii) Positive

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Find the indicated term of the geometric sequence.a1 = 3, r = -2; Find a2.

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Find the exact value of the expression, if possible. Do not use a calculator.cos-1  

A.
B.
C.
D.

Mathematics