Evaluate.(4x)2 - 5x for x = 3

A. 129
B. 33
C. 21
D. 139

Answer: A

Mathematics

Convert as indicated.7.7 tons to pounds

A. 123.2 lb B. 7700 lb C. 15,400 lb D. 1540 lb

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Mathematics

Multiply. Assume that all variables represent nonnegative real numbers.

A. 3m² +
B. 3m² + m  + m  +
C. 3m² - m  + 3m  -
D. 3m² + m  + 3m  +

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Mathematics

Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.cos 5x + cos 12x = 2 cos 7x cos x

A. 2?
B. -2?
C.
D. 0

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Mathematics

Evaluate the expression using the given values.; M = 230, m = 3, d =

A. 53973
B. 1840
C. 4906
D. 5397

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Mathematics