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If the photographer ignores Chris’s request from the previous question and the only thing he wants is that Amy and Brad don’t stand next to each other, how many ways can he put them in one row

Three students enrolled in an Econometrics class are deciding on which software they want to use for this class. Each of them wants to randomly choose two out of the four options: Stata, R, Python, and MATLAB. What is the probability that exactly two students end up choosing the same ones?

If Chris wants to stand in the exact middle (the third position) and other students have no preference, how many ways are there to put them in one row?

Which function would you use to calculate gross margin?

Which formula correctly multiplies quantity in cell B2 by unit price in cell C2?

To apply the same formula down a column, which Excel feature should you use?

Match the columns correctly

The effects of temperature on enzyme activity were tested. Equal concentrations of enzyme were and substrates were mixed at different temperatures and the concentration of product was measured every minute. The results are displayed in the graph here. Graph of Enzyme Product vs Time at Various Temperatures Based on these results what is the optimum temperature for this enzyme’s activity? Answer: [BLANK-1] degC.   An enzyme’s activity is the rate/speed at which the enzyme catalyzes the reaction. To make a derivative plot of this enzyme’s activity at the temperature displayed in the graph above, the slopes for each temperature need to be calculated. Calculate the activity for the optimum temperature only and type the value in the space provided. Answer: [BLANK-2] umol/min

This graph represents the results of an osmosis experiment using dialysis tubing models (DTM) to simulate cell membranes. The DTMs contained a sucrose solution and were placed in beakers with different concentrations of glucose Each line (A-D) indicates a different DTM. Use the graph to answer the questions that follow.   Diagram of an experimental setup of a dialysis tubing cell model to observe osmosisAssume that the change in weight in time is due to the movement of water into or out of the bag. Which DTM bag initially had the greatest concentration gradient with the solution in the beaker? Type the letter for correct bag in the space provided: [BLANK-1]   In the following spaces, indicate the correct environment each of the bags (A-D) was placed in based on the results in the graph? (One space will have two answers. In that case, separate the letters with the word “and”)   DTM bag(s) in an isotonic environment: [BLANK-2] DTM bag(s) in a hypertonic environment: [BLANK-3] DTM bag(s) in a hypotonic environment: [BLANK-4]

Three substances differing in molecular size were injected in a gel like substance called agar and allowed to diffuse for 60 minutes. The results are shown here. Image showing the diffusion of three different dyes in agarose gel. Which of the substances, indicated by letters A, B, and C, has the smallest molecular weight? Type the letter in the space provided. [BLANK-1]