Refer to right triangle ABC with .

?

?

?

If  mm and  mm, find B.

?

Apply the rules regarding the use of significant digits when determining your answer.

??

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Fill in the blank(s) with the appropriate word(s).


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Mathematics

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Solve for the percentage in the problem. Round to the nearest tenth of a percent.$957 is   % of $1745.

A. 182.3 B. 54.8 C. 0.1 D. 0.5

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Calculate. Round to two decimal places if necessary.

A. 0.07 B. 0.7 C. 0.007 D. 7

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Solve the problem.If f(?) = sec ? and f(a) = 3, find the exact value of f(-a).

A. 3
B.
C. - 
D. -3

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Online retail sales stood at $22.7 billion for 2000. For the next 2 years, they grew by 32.4% and 27.6% per year, respectively. For the next 6 years, online retail sales are projected to grow at 30.2%, 19.7%, 24.3%, 13.6%, 17.2%, and 10.6% per year, respectively. What are the projected online sales for 2008? Round your answer to one decimal place. ?

A. $113.6 billion B. $112.2 billion C. $110.8 billion D. $108.0 billion E. $109.4 billion

Mathematics