Find the common difference of the sequence.a1 = 623, a4 = 602; find d
A. -623
B. 7
C. -7
D. 623
Answer: C
Mathematics
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Subtract.67,781 - 13,874
A. 55,307 B. 53,907 C. 53,807 D. 54,307
Mathematics
The graph of f(x) = ax2 + bx + c is given in the figure. Solve the equation 
A. -4 B. 0 C. 4 D. 0, -4
Mathematics
Graph the curve whose parametric equations are given.x = -sec t, y = tan t; - 
< t < 
A. 
B. 
C. 
D. 
Mathematics
Graph the function.f(x) = x2 
A. 
B. 
C. 
D. 
Mathematics