Consider the parametric equations below. x = 9 + tet, y = (t2 + 1)et, 0 ≤ t ≤ 2set up an integral that represents the area of the surface obtained by rotating the given curve about the x-axis. integral (0 to 2) dtuse your calculator to find the surface area correct to four decimal places.

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Which of the following parabolas opens down?