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Rates of growth generally slow during middle childhood. Typically, a child will gain about pounds a year during this age period. 0 5-7 8-9 15-17 10-12

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At what y the parabola $y = x^2 - 1$ intersects the y-axis? y = -1 y = 0 y = 2 y = 1

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A student is provided with an unknown solution, which will contain one of the following cations: Sr$^{2+}$ (aq), Cu$^{2+}$ (aq), Pb$^{2+}$ (aq), or K$^{+}$ (aq). The unknown solution is mixed with aqueous sodium bromide, sodium hydroxide, and sodium sulfate. The student's observations are shown below. \begin{tabular}{|c|c|c|} \hline NaBr (aq) & NaOH (aq) & Na$_2$SO$_4$ (aq) \\ \hline Unknown solution & no change & precipitate & no change \\ \hline \end{tabular} Which cation does the unknown solution contain? Select the single best answer. Note: Reference the Solubility of ionic compounds in water table for additional information. Potassium ion, K$^{+}$ (aq) Lead(II) ion, Pb$^{2+}$ (aq) Strontium ion, Sr$^{2+}$ (aq) Copper(II) ion, Cu$^{2+}$ (aq)

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Employment is the number of people employed; unemployment is the number of people unemployed and actively looking for work a. True b. False

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Step 2 The next step is to rewrite the objective function, $f = 9x + 5y$, with all of the variables on the left side. When we do this, the objective function becomes -9 y + f = x - 5

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In order to study the effects of World War II on a certain country's economy, an economist used data from that country's census bureau to produce the following Lorenz curves for the distribution of income in 1935 and 1947. $f(x) = x^{2.7}$ Lorenz curve for 1935 $g(x) = x^{1.3}$ Lorenz curve for 1947 Find the Gini index of income concentration for each Lorenz curve and interpret the results. What is the Gini index for 1935? (Round to three decimal places as needed)

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2. What is the limit of the sequence (-1)$^n$/(2n+1) from n=1 to n approaching infinity? a. 1 b. 0 c. 1/2 d. divergent 3. What is the limit of the sequence [(-1)$^{n+1}$]/n from n=1 to n approaching infinity? a. 1 b. 0 c. 1/2 d. divergent 4. What is the limit of the sequence (8-2n) from n=1 to n approaching infinity? a. +$\infty$ b. -$\infty$ c. 8 d. 0 5. Find the limit of the sequence n/e$^n$ from n=1 to n approaching infinity. Use L'Hopital's rule, that is, differentiate separately both the numerator and denominator, then find the limit. (Derivative of n with respect to n)/(Derivative of e$^n$ with respect to n). a. +$\infty$ b. -$\infty$ c. 0 d. 1 6. Find the $\lim_{n \to \infty} \sqrt[n]{n}$. Express first n^(1/n) as the power of the base e of natural logarithm. Then use L'Hopital's rule in the power. a. 1 b. 0 c. +$\infty$ d. -$\infty$ 7. The sum of the series 1-1+1-1+1+...... is a. -1 b. $\infty$ c. 1 d. 0

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A Canadian dollar (C$) today is worth $1.02667. The one-year interest rate is 10% in Canada and 5% in the U.S. You will receive C$200 in one year from a Canadian customer, and you'll immediately use it to purchase Hong Kong dollars (HK$) to pay for imports from Hong Kong. The HK$ is pegged to the US$ at a rate of $0.098/HK$ by the H.K. central bank, and you believe it will remain so during the next year (i.e., you believe the $/HK$ spot rate in one year will be $0.098/HK$). Use the International Fisher Effect theorem to forecast how many HK$ you'll be able to purchase in a year with the C$200. Assume that arbitrage keeps spot prices properly aligned.

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1. (a) (2 points) Find the sum 4+8+12+16+20+ ... + 492.

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1 2 tahun 5 bulan + 8 tahun 8 bulan = ____ tahun ____ bulan 2 years 5 months + 8 years 8 months = ____ years ____ month

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nicole b.