Write the English phrase as an algebraic expression. Let the variable x represent the number.Twice a number, decreased by 54
A. 2(x - 54)
B. 2x + 54
C. 2x - 54
D. x - 54
Answer: C
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Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of c. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = cos-1 
B. A = sin-1 
C. A = sin-1 
D. A = cos-1 
Provide an appropriate response.Logarithms with a base of 10 are called _______ logarithms, and base-e logarithms are called _______ logarithms.
A. common; exponential B. natural; common C. common; natural D. natural; exponential
Provide the proper response.Write a ratio equal to the rate of 85%.
What will be an ideal response?
Write the statement as an absolute value inequality.x is within 10 units of 9
A. |10 - x| < 9 B. |x - 9| ? 10 C. |x - 9| < 10 D. |x - 10| < 9