Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = x2 + 2
What will be an ideal response?
Answers may vary. Possible answer:
Find two numbers a and b for which a ? b and f(a) = f(b). Two such numbers are -1 and 1 because f(-1) = f(1) = 3. Thus, f is not one-to-one.
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Solve the problem.An arch in the form of a semiellipse is 52 ft wide at the base and has a height of 20 ft. How wide is the arch at a height of 12 ft above the base?
A. 41.6 feet B. 20.8 feet C. 17.7 feet D. 35.5 feet
Evaluate the expression without the use of a calculator, and then verify your answer using a calculator.eln 12
A. ln 12 B. 12 C. e12 D. 11
Provide an appropriate response.Is the following statement true for every positive integer n? 
+ 
+ 
+ ... + 
= 1 - 
A. No B. Yes C. Cannot be determined
Write the decimal in words.5.471
A. Five and four hundred seventy-one millionths B. Five and four hundred seventy-one tenths C. Five and four hundred seventy-one hundredths D. Five and four hundred seventy-one thousandths