Match the system of inequalities with a graph.5y - x > -37,y + 6x < 39,4x > y,y < 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem. Express your answer in simplest form.Peter must practice the piano 10
hours per week. He has already practiced 4
hours. How many more hours does he need to practice?
A. 6
hr
B. 5
hr
C. 4
hr
D. 5 hr
Mathematics
Find the sum of the arithmetic series.17 + (9) + (1) + (-7 )+...+ (-375)
A. -8945 B. -383 C. -9150 D. -8950
Mathematics
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.4 + 8 + 12 + ... + 4n = 2n(n + 1)
What will be an ideal response?
Mathematics
Solve the problem.If f(?) = cos ? and f(a) = - 
, find the exact value of f(a) + f(a + 2?) + f(a + 4?).
A. - 1
B. - 
C. - 1 + 6?
D. 1
Mathematics