Match the system of inequalities with the appropriate graph.x + 2y ? 2 x - y ? 0
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Evaluate the function.S(x) = 0.7x2 - 4.4x + 2.1; S(-0.3)
A. 0.216 B. 3.483 C. 1.404 D. -3.483
Mathematics
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.b = 20, c = 25
A. a = 5 B. a = 225 C. a = 45 D. a = 15
Mathematics
Prove that the equation is an identity.ln(cot ?) = ln(cos ?) + ln(csc ?)
What will be an ideal response?
Mathematics
Find the sum of the arithmetic sequence.(-6) + (-1) + 4 + 9 + ... + 39
A. 165 B. 170 C. 330 D. 160
Mathematics