Solve the problem.A lake lies between A and C, and lines AB and DE run north-south. If  = 7.6 mi,  = 1.3 mi, and  = 1.8 mi, how far is it from A to C? Round to the nearest tenth.

A. 11.0 mi
B. 8.7 mi
C. 5.5 mi
D. 10.5 mi


Answer: A

Mathematics

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8x2 + 10x + 12x + 15

A. (8x - 3)(x - 5) B. (2x - 3)(4x - 5) C. (8x + 3)(x + 5) D. (2x + 3)(4x + 5)

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Perform the indicated operation. - 

A.
B.
C.
D.

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Find the exact value by using a sum or difference identity.cos 285°

A.
B. -( - 1)
C. - 
D. -( + 1)

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Write out the sum and evaluate.

A.  22 + 2 + 2 + 2; 441
B.  +  +  +  + ; 441

C.  +  +  +  + ; 121


D.  +  +  +  + ; 121

Mathematics