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Questions in Grade High-school

[Answered] Amy is training for a competition, a timed race that combines swimming, rowing, and running. Consider the following statement: Because her pool sessions are helping her swim more quickly, Amy plans to reduce by 30 minutes per week the time she spends training on rowing and increase by 30 minutes the time she spends in the swimming pool; however, her bff says that she should stop doing any rowing and running and spend all 15 hours per week training in the pool. Which concept does Amy's plan demonstrate that her bff's advice does not? A. People generally take advantage of opportunities for self-gain B. Many decisions are made on the margin. C. Markets are usually efficient D. Everything has a cost

[Answered] Practice: Geochemical Cycles. 1. Read each statement and place a check mark in the column of the cycle(s) it applies to: | Statement | Carbon | Water | Nitrogen | | :-------------------------------------------------------------------------- | :----- | :---- | :------- | | Matter cycles through living and nonliving components of ecosystem. | | | | | Cannot happen without decomposers like bacteria. | | | | | Has stages that occur underground. | | | | | Matter takes on different chemical forms as it cycles. | | | | | Entire cycle is driven by the sun. | | | | | A cycle that didn't really exist before the industrial revolution. | | | | | Introduced to the atmosphere by bacteria or even lightning. | | | | 2. Match the name of the stage to the correct description. Not all words will be used. A. When water returns to the atmosphere via plants. B. A cycle that didn't really exist before the industrial revolution. C. Introduced to the atmosphere by bacteria or even lightning. Options: Aquifers, Infiltration, Urinelfers, Evaporation, Transpiration, Condensation, Precipitation

[Answered] $\int \frac{x^2}{x-1} d x$

[Answered] Jika $2 x^3+x^2+4 x+4$ dibagi $2 x-3$, bagi dan sisanya berturut-turut adalah

[Answered] [tex]\frac{3^2 \cdot 3^4 \cdot 3^7}{3^6 \cdot 3^8}[/tex]

[Answered] Consider the equation below. [tex]$AgNO_3(aq)+NaCl(aq) \rightarrow AgCl(s)+NaNO_3(aq)$[/tex] Which compound is the precipitate in this chemical reaction? A. [tex]$AgNO _3$[/tex] B. NaCl C. AgCl D. [tex]$NaNO _3$[/tex]

[Answered] Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature

[Answered] 3. [tex]$\begin{array}{r} 29=6 x-8 \ -8-8 \ \end{array}$[/tex]

[Answered] Which of the following represents the solution of $\frac{3}{2}=\frac{3}{2 x}-\frac{6}{5 x} ?$ A. $x=\frac{1}{5}$ B. $x=\frac{5}{9}$ C. all real numbers D. no solution

[Answered] 4 - Microwave Miracle Patrick believes that fish that eat food exposed to microwaves will become smarter and would be able to swim through a maze faster. He decides to perform an experiment by placing fish food in a microwave for 20 seconds. He has the fish swim through a maze and records the time it takes for each one to make it to the end. He feeds the special food to 10 fish and gives regular food to 10 others. After 1 week, he has the fish swim through the maze again and records the times for each. What was Patrick's hypothesis? Which fish are in the control group? What is the independent variable? What is the dependent variable? Look at the results in the charts. What should Patrick's conclusion be? Special Food Group (Time in minutes/seconds) Fish Before After 1 1:06 1:00 2 1:54 1:20 3 2:04 1:57 4 2:15 2:20 5 1:27 1:20 6 1:45 1:40 7 1:00 1:15 8 1:28 1:26 9 1:09 1:00 10 2:00 1:43 Regular Food Group (Time in minutes/seconds) Fish Before After 1 1:09 1:08 2 1:45 1:30 3 2:00 2:05 4 1:30 1:23 5 1:28 1:24 6 2:09 2:00 7 1:25 1:19 8 1:00 1:15 9 2:04 1:57 10 1:34 1:30