Factor the polynomial completely. If the polynomial cannot be factored, write "prime."16 - 4x2
A. 4(x + 2)(x - 2)
B. 4(x - 2)2
C. 4(2 + x)(2 - x)
D. Prime
Answer: C
Mathematics
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Write 45,800 in scientific notation.
A. 458 × 102 B. 4.58 × 104 C. 45.8 × 103 D. 4.5800 × 104
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Multiply and simplify.
? 3b
A. 
b
B. 
C. 
D. 11b
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Solve the problem.Kimberly invested 
in her savings account for 4 years. When she withdrew it, she had 
. Interest was compounded continuously. What was the interest rate on the account? Round to the nearest tenth of a percent.
A. 3.4% B. 3.3% C. 3.55% D. 3.5%
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Solve the problem.The volume of a sphere is increasing at a rate of 7 cm3/s. Find the rate of change of its surface area when its volume is 
cm3
A. 
cm2/s
B. 
cm2/s
C. 7 cm2/s
D. 
cm2/s
Mathematics