Use a commutative property to complete the statement. Do not simplify.7.9x = 
A. x + 7.9
B. x - 7.9
C. x(-7.9)
D. x(7.9)
Answer: D
Mathematics
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Find the exact value of the expression.sin 165°
A. -
(
+ 1)
B. 
C. - 
D. -
(
- 1)
Mathematics
Use rational exponents to simplify. Do not use fraction exponents in the final answer. Assume that even roots are of nonnegative quantities.
32
A. 
4
B. 
C. (ab)4
D. (ab)8
Mathematics
Solve the problem.Your company uses the quadratic model y = -11x2 + 350x to represent how many units (y) of a new product will be sold (x) weeks after its release . How many units can you expect to sell in week 28?
A. 1176 units B. 18,424 units C. 10,108 units D. 9492 units
Mathematics
Find the domain of the function.y = 
A. all real numbers except -2 B. (2, ?) C. (-?, 2) D. all real numbers except 2
Mathematics