Find the center and radius of the sphere.
A. center: (9, 8, -5); radius: 9
B. center: (-9, -8, 5); radius: 9
C. center: (-9, 8, -5); radius: 9
D. center: (9, 8, -5); radius: 81
E. center: (9, 8, -5); radius: 81
Answer: B
Mathematics
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Multiply and simplify.
? 
A. 
B. x - 3
C. 
D. 
Mathematics
Find the equation in standard form of the parabola described.The vertex has coordinates (5, 6), and the focus has coordinates (5, 3).
A. (y - 6)2 = 8(x - 5) B. (x - 5)2 = -12(y - 6) C. (x - 5)2 = 12(y - 6) D. (y - 6)2 = -8(x - 5)
Mathematics
Use your calculator to find the quotient. -610.9 ÷ (-41)
A. -149 B. 15.9 C. -159 D. 14.9
Mathematics
Compute the compound interest.Binal Patel invested $5500 at 9% compounded semiannually. How much will be in the account in 8 years? Round to the nearest cent.
A. $11,123.04 B. $21,836.68 C. $10,959.09 D. $7821.55
Mathematics