Solve the problem.V = 
?r3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 2.0 cm to 2.2 cm? (Use 3.14 for ?.)
A. 10.0 cm3
B. 10.2 cm3
C. 9.8 cm3
D. 1.0 cm3
Answer: A
Mathematics
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Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 
A. 
; 
B. - 
; - 
C. 
; 
D. - 
; - 
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Multiply. Leave the answer in factored form when appropriate.
? 
A. 
B. 
C. 
D. y - 7
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Write the improper fraction as a mixed number in simplest form.
A. 1
B. 
C. 2
D. 1
Mathematics
Graph on the number line, and express in interval notation.The set of all real numbers between -2 and 2 excluding -2 and including 2.
A. (-2, 2]
B. [-2, 2]
C. (-2, 2)
D. [-2, 2)
Mathematics