Find the indicated coefficient or term.The coefficient of x8 in the expansion of (x2 - 3)7
A. 2835
B. -945
C. 945
D. -2835
Answer: B
Mathematics
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Describe the given set of points with a single equation or with a pair of equations.The plane through the point (-9, -8, -9) and perpendicular to the x-axis
A. x = -9 B. -9 + y + z = 0 C. y + z = -17 D. y = -8 and z = -9
Mathematics
Find an equation for the circle.Center at (0, 7), radius 9
A. x2 + (y + 7)2 = 9 B. x2 + (y - 7)2 = 81 C. (x - 7)2 + y2 = 81 D. (x + 7)2 + y2 = 81
Mathematics
Provide an appropriate response.When any nonzero number is divided by 1, the result is 
.
A. impossible to compute B. 1 C. the nonzero number D. 0
Mathematics
Describe the largest set S on which it is correct to say that f is continuous.f(x, y, z) = 
A. {(x, y, z): x2 + y2 ? 7} B. {(x, y, z): x2 + y2 ? 49} C. Entire plane D. {(x, y, z): x2 + y2 ? 0}
Mathematics