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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Solve the problem.The instructions for a bookcase assembly kit said that the fasteners enclosed were 2.3 inches long. When measured, they were 2.34 inches long. Were the fasteners too long or too short? What was the difference?
A. Too short; 0.14 inch B. Too long; 0.04 inch C. Too long; 0.14 inch D. Too short; 0.04 inch
Mathematics
Find the value of the trigonometric function.tan 495.4°
A. -1.01 B. 0.702 C. -0.986 D. -0.712
Mathematics
Determine whether the given equation is an identity.
+ 8 = 
- 4 - 
+ 12
A. Yes B. No
Mathematics
Graph.y = log3 x
A. 
B. 
C. 
D. 
Mathematics