Write the word phrase as an algebraic expression. Use x to represent the unknown number.47 decreased by a number
A. 
B. 47 + x
C. 47 - x
D. x - 47
Answer: C
Mathematics
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Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Mathematics
Determine whether the given value is a solution to the given equation.Is 7 a solution to x + 8.5 = 15.1?
A. Yes B. No
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.18z2 - 63z - 36
A. (18z - 9)(z + 4) B. 9(2z - 1)(z + 4) C. 9(2z + 1)(z - 4) D. Prime
Mathematics
Use graphical methods to solve the linear programming problem.Minimize z = 4x + 5y subject to: 2x - 4y ? 10 2x + y ? 15 x ? 0 y ? 0
A. Minimum of 20 when x = 5 and y = 0 B. Minimum of 75 when x = 0 and y = 15 C. Minimum of 39 when x = 1 and y = 7 D. Minimum of 33 when x = 7 and y = 1
Mathematics