2. Do pleasant odors improve students' performance on tests? To test this idea, 21 subjects worked a paper-and-pencil maze while wearing either an unscented or floral scented mask. The subjects completed three mazes with each type of mask and the average time to complete the maze was recorded. The order of the two masks was randomly assigned. The average completion time (in seconds) for each subject is below. Subject Unscented Scented 1 30.60 37.97 2 48.43 51.57 3 60.77 56.67 4 36.07 40.47 5 68.47 49.00 6 32.43 43.23 7 43.70 44.57 8 37.10 28.40 9 31.17 28.23 10 51.23 68.47 11 65.40 51.10 12 58.93 83.50 13 54.47 38.30 14 43.53 51.37 15 37.93 29.33 16 43.50 54.27 17 87.70 62.73 18 53.53 58.00 19 64.30 52.40 20 47.37 53.63 21 53.67 47.00

can you walk me through how to do these 2 problems for my homework

What is the family of the equation y=−2x2 +3? linear exponential quadratic   Create a table of values for the equation on paper and use it to help you graph the equation.

hi, can you draw the graphs clearer? or maybe in digital?

Don't use calculator to solve.

Hello, need some help solving and understanding the following problem.

Solve this question by formulas only no excel or any software. please and thank you

Please solve number 3 completely by hand or if using spreadsheet please follow instructions. Trying to understand how to calculate the problem from beginning to end. Thank you. Solve each of the following exercises in the clearest and most orderly way possible. All exercises must be accompanied by the procedures used They shall use the appropriate nomenclature. The spreadsheets must contain details of each calculated value, that is, they must place labels to be able to recognize the meaning of each value   3. Let be the function f(x)=2x3 - 4x2 + 4x +4 approximate the same root using: (a) the secant method. (b) Bisection Use an accuracy of 10-5