Perform the indicated operations and simplify the result. Leave the numerator and denominator in your answer in factored form.
A. x2
B. -8
C. 8
D. 2x
Answer: D
Mathematics
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Calculate the area of the surface S.S is the portion of the sphere x2 + y2 + z2 = 81 between z = - 
and z = 
.
A. 9
?
B. 81
?
C. 162
?
D. 162?
Mathematics
Use a calculator to perform the operation. Express your answer in scientific notation.
A. 1.39 × 10-1 B. 1.39 × 10-3 C. 1.388728918 × 10-11 D. 1.39 × 10-11
Mathematics
Simplify by finding the absolute value.-?-6?
A. 0 B. 6 C. -6 D. 12
Mathematics
Solve.An elliptical riding path is to be built on a rectangular piece of property that measures 8 mi by 4 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides.A = 8 miB = 4 mi
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics