Use the given values of the variables to find the value of the expression.8x + 4y for x = 2, y = 7
A. 84
B. 64
C. 24
D. 44
Answer: D
Mathematics
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Provide an appropriate response.True or false? If a < 0, then 
= j
.
A. True B. False
Mathematics
Give the numerical coefficient of the term.rz
A. 1 B. r C. 0 D. rz
Mathematics
Use the even-odd identities to find the exact value of the expression. tan (-?)
A. 1 B. -1 C. undefined D. 0
Mathematics
The graph of a certain function y = f(x) and the zero of that function is given. Using this graph, find a) the x-intercept of the graph of y = f(x) and b) the solution to the equation f(x) = 0.
A. a. -2 b. x = 0 B. a. -1 b. x = -1 C. a. -2 b. x = -2 D. a. 0 b. x = -2
Mathematics