Solve.If y varies directly as x, and y = 3 when x = 2, find y when x = 8.
A. 
B. 12
C. 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Explain the error(s) in the following:5 - 2x ? 13 -2x ? 8 (1) x ? -4 (2)
What will be an ideal response?
Mathematics
Use the method of Gauss to find the sum.1 + 2 + 3 + . . . + 650
A. 422,500 B. 211,250 C. 105,625 D. 211,575
Mathematics
Use the graph of the function to estimate the x-intercepts.g(x) = -2x2 - 3x + 5
A. x = -2.5, x = 1 B. x = -5, x = 2 C. x = -3, x = 5 D. x = -1, x = 2.5
Mathematics
Find an algebraic expression equivalent to the given expression.cos (arctan 
)
A. 
B. 
C. 
D. 
Mathematics