Evaluate the algebraic expression for the given value or values of the variable(s).10x2 + 4y;
x = 7 and y = 3
A. 502
B. 4912
C. 118
D. 1590
Answer: A
Mathematics
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Evaluate the line integral of f(x,y) along the curve C.f(x, y) = x2 + y2, C: y = -2x - 2, 0 ? x ? 3
A. 93
B. 31
C. 93
D. 183
Mathematics
Solve the equation.log 4x = log 3 + log (x + 3)
A. -9
B. 9
C. 
D. 2
Mathematics
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
dollars. The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $27.50?
A. {x ? 5 < x < 11} B. {x ? 6 < x < 10} C. {x ? 7 < x < 9} D. {x ? 7 < x < 13}
Mathematics
Give the exact value of the expression.arccos
A. ?
B. 
C. 0
D. 
Mathematics