Factor the expression completely. If the polynomial is prime, state this as your answer.a2 + 2ab + b2
A. (a - b)2
B. prime
C. (a + b)2
D. (a + b)(a - b)
Answer: C
Mathematics
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Simplify by adding or subtracting like terms.4x + 13 - 22x - 11
A. -18x + 13 - 11 B. 26x + 24 C. -18x + 2 D. 18x + 2
Mathematics
An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.
A. 
B. 
C. 
D. 
Mathematics
Find the limit.
A. ? B. 0 C. 1 D. No limit
Mathematics
Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round your answer to the nearest decibel.
A. 184 decibels B. 8 decibels C. 70 decibels D. 80 decibels
Mathematics