Determine whether the given function is a polynomial function. if it's a polynomial function, state the degree. if not, state the reason why. k(x) = –3x6 – 0.7x + x3 a. yes; degree 6 b. no, because some range elements correspond to more than one domain element c. yes; degree 10 d. no, because 0.7 isn't an integer

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