Mia opens a coffee shop in the first week of january. the function w(x) = 0.002x3 - 0.01x2 models the total number of customers visiting the shop since it opened after x days. she then opens an ice cream parlor in the month of february. the function r(x) = x2 - 4x + 13 models the total number of customers visiting the parlor since it opened after x days. which function represents the difference, d(x), in the number of customers visiting the two shops? a. d(x) = 0.002x3 + 1.01x2 - 4x + 13 b. d(x) = 0.002x3 + 0.99x2 + 4x - 13 c. d(x) = 0.002x3 - 1.01x2 + 4x - 13 d. d(x) = 0.002x3 - 0.99x2 - 4x + 13

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

The table below shows the function f. determine the value of f(3) that will lead to an average rate of change of 19 over the interval [3, 5]. a. 32 b. -32 c. 25 d. -25

Anull hypothesis states that the difference between 8 hours of sleep and 3 hours of sleep has no effect on the number of pictures a student will remember during a picture memory interface test (pmit). examining the mit database, an extremely small t-value of 0.1611 is found. this t-value is much smaller than the smallest t-value on the chart for p-value reference. from this information we can: select one: a. accept the null hypothesis because the p-value obtained shows that the difference between the two groups being tested is not statistically significant b. accept the null hypothesis because the p-value obtained was statistically significant c. reject the null hypothesis because of the p-value obtained d. reject the null hypothesis because the data obtained is statistically significant