Let ? be an acute angle. Find the unknown trigonometric value using the given information.cos ? if sec ? = -7

A.
B. - 
C. - 
D.


Answer: B

Mathematics

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Use the figure to answer the question.This double-bar graph shows the number of male (M) and female (F) athletes at a university over a  period.2009201020112012YearWhat is the only year in which the number of female athletes declined from its previous value?

A. 2011 B. 2009 C. 2010 D. 2012

Mathematics

Factor the polynomial completely.4z6 - 49

A. (2z3 + 7)(2z3 - 7) B. 4z6 - 49 C. (2z3 - 7)2 D. (2z3 + 7)2

Mathematics

Write decimal notation.

A. 82.179 B. 164.179 C. 82.0179 D. 83.79

Mathematics

Graph the hyperbola. ? ?

A. ?


B. ?


C. ?


D. ?


Mathematics