Choose the graph which matches the function.y = cos x - sin x - sin 2x - sin 3x
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the equation. Express radicals in simplest form.3x2 - 3x + 6 = 10x + 3
A. 
B. 
C. 
D. 
Mathematics
Write the standard form of the equation of the circle with radius r and center (h, k).r = 
; (h, k) = (0, 1)
A. (x + 1)2 + y2 = 121 B. x2 + (y - 1)2 = 11 C. (x - 1)2 + y2 = 121 D. x2 + (y + 1)2 = 11
Mathematics
Match the inequality with the correct graph or interval notation.x < 3
A. 
B. 
C. 
D. 
Mathematics
Decide whether the statement is always true, sometimes true, or never true.The difference between a positive number and a negative number 
A. Sometimes true B. Always true C. Never true
Mathematics