Question

in cell b2, insert the averageif function to calculate the average sold price for houses in the city of alpine. use mixed references for the range; use a relative reference to cell a2. copy the function and use the paste formulas option to paste the function in the range b3:b5 so that the bottom border in cell b5 is preserved.

Answer 1

The chemistry task is to calculate the formula mass by multiplying the quantity of each element by its atomic mass, while the physics task is to time a moving car, plot 'Distance vs. Time' on a graph, and determine the car's average velocity from the graph's slope.

Step-by-step explanation:

The given table and the instructions suggest that the student is working on a lab activity that involves calculating the formula mass of a compound and conducting an experiment to determine the average velocity of a moving car. For the chemical part of the question, the student is expected to multiply the 'Quantity' of each element (provided in the second column) by the 'Average atomic mass' (provided in the fourth column) to find the 'Subtotal (a m u)' of each element, which are then summed to determine the formula mass of the compound.

In the physics experiment, the student will time the motion of a car over varying distances, calculate the average time for each distance, and then plot the results on a graph as 'Distance vs. Time'. From the graph, the student must label axes with units, draw the best-fit straight line through the data points, and finally calculate the slope of the line, which represents the average velocity of the car.