Translate to an algebraic expression.The product of 75% and some number

A.  
B. 0.75 + x
C. 75x
D. 0.75x 

Answer: D

Mathematics

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Evaluate the integral using the given substitution. dx , u = x3/2 - 8

A. sin3 (x3/2 - 8) + C
B. (x3/2 - 8) +  sin 2(x3/2 - 8) + C
C.   sin (x3/2 - 8) + C
D. x3/2 - 8 +  sin 2(x3/2 - 8)+ C

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Mathematics

Use an Euler diagram to determine whether the argument is valid or invalid.All cats like fish.Henry does not like fish  Therefore, Henry is not a cat.

A. valid B. invalid

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Mathematics

Give the exact value of the expression.csc(csc-1 )

A.
B. - 
C.
D.

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Mathematics

Find the common ratio for the geometric sequence.1, -3, 9, -27, 81, . . .

A. - 
B. 3
C. -3
D. -4

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Mathematics