Is the function graphed below one-to-one?
A. Yes
B. No
Answer: A
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Solve the problem.Assume that the profit P made when t units are sold, t > 0, is given by P(t) = t2 - 28t + 180. For what values of t will there be a loss (that is, P < 0)?
A. t = 10 or t = 18 B. 10 < t < 18 C. t > 0 D. 0 < t < 10 or t > 18
Solve the problem.The table below gives the number of births, in thousands, to females over the age of 35 for a particular state every two years from 1994 to 2010. 
Use technology to find the quartic function that is the best fit for this data, where x is the number of years after 1994. Round to five decimal places.
A. y = 0.01723x4 - 0.62258x3 + 6.66654x2 - 18.98367x + 43.26566 B. y = 43.26566x4 - 18.98367x3 + 6.66654x2 - 0.62258x + 0.01723 C. y = - 0.01723x4 + 0.62258x3 - 6.66654x2 + 18.98367x - 43.26566 D. y = 0.02223x4 - 0.82248x3 + 8.66654x2 - 15.98367x + 41.96566
Solve the equation.0.035(400) + 0.05x = 0.04(400 + x)
A. 200 B. 210 C. 100 D. 190
Rewrite in logarithmic form.ex = 3
A. ln 3 = x B. log 3 = x C. ln x = 3 D. log x = 3