Find the center and radius of the sphere. : x² + y² + z² -4x +4 -8y = 0
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(e) none of these
Mathematics
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Write the percent as a decimal.
%
A. 0.4725 B. 0.4775 C. 0.0545 D. 4.7075
Mathematics
Solve using the principle of zero products.(x - 7)(x + 4) = 0
A. 7, -7, 4, -4 B. -7, 4 C. 7, 4 D. 7, -4
Mathematics
Evaluate the sum. Round to the nearest hundredth, if necessary.
A. 86 B. 35 C. 93 D. 66
Mathematics
Express as a single logarithm and, if possible, simplify.
[ln (w2 - 16) - ln(w + 4)] + ln (w + y)
A. ln (w - 4)2/3(w - y) B. ln (w + 4)2/3(w + y) C. ln (w - 4)2/3(w + y) D. ln (w - 4)(w - y)
Mathematics