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Chapter 3: Problem 7
Which of the following is equivalent to \(\left(12 x^2+4 x+5 y\right)+\left(3 x^2-2 x+\right.\) \(3 y) ?\) A) \(2 x^2-2 x+8 y\) B) \(2 x^2+15 x+8 y\) C) \(15 x^2-2 x+8 y\) D) \(15 x^2+2 x+8 y\)
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Melanie puts $$\$ 1,100$$ in an investment account that she expects will make \(5 \%\) interest for each three-month period. However, after a year she realizes she was wrong about the interest rate and she has $$\$ 50$$ less than she expected. Assuming the interest rate the account earns is constant, which of the following equations expresses the total amount of money, \(x\), she will have after \(t\) years using the actual rate? A) \(x=1,100(1.04)^{4 t}\) B) \(x=1,100(1.05)^{4 t-50}\) C) \(x=1,100(1.04)^{t / 3}\) D) \(x=1,100(1.035)^{4 t}\)
If \(9>3 v-3\), what is the greatest possible integer value of \(v\) ?
If rectangle \(A B C D\) has an area of 48 and the tangent of \(\angle B C A\) (not shown) is \(\frac{3}{4}\), then which of the following is the length of \(\overline{B D}\) (not shown)? A) 5 B) 10 C) 13 D) It cannot be determined from the given information.
Based on the line of best fit in the scatterplot above, which of the following is the closest to the average annual increase in coyotes in Yellowstone Park between 1995 and 2000 ? A) 22 B) 24 C) 26 D) 28
Hannah placed an online order for shirts that cost \(\$ 24.50\) per shirt. A tax of \(7 \%\) is added to the cost of the shirts, before a flat, untaxed shipping rate of \(\$ 6\) is charged. Which of the following represents Hannah's total cost for \(s\) shirts, in dollars? A) \(0.07(24.50 s+6)\) B) \(1.07(24.50+6) s\) C) \(1.07(24.50 s)+6\) D) \(1.07(24.50+s)+6\)
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