Use a calculator to find the value of the expression rounded to two decimal places.cos-1 

A. 0.80
B. 44.42
C. 45.58
D. 0.78


Answer: D

Mathematics

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Use DeMorgan's laws or a truth table to determine whether the two statements are equivalent.~(p ? q) ? r, (~p ? ~q) ? r

A. Equivalent B. Not equivalent

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Solve the problem.Find the sum of the arithmetic progression:   4 + 10 + 16 + . . . + 112

A. 1102 B. 1106 C. 1094 D. 1110

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Provide an appropriate response.Graph the function y = f(x) = 3 - 2x - x2 and indicate the coordinates of the vertex and intercepts.

What will be an ideal response?

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For the given arithmetic series, what is Sn?a1 = 6, d = 15, and n = 41

A. 50,184 B. 25,092 C. 12,552 D. 12,546

Mathematics