1.) Use the Pythagorean Theorem to determine if a triangle with side lengths 28ft., 45ft., 53ft. is a right triangle. 2.) Use the Pythagorean Theorem to determine if a triangle with side lengths 6ft., 6ft., 8ft. is a right triangle.
3. Use the Pythagorean Theorem to determine if a triangle with side lengths 4ft., 10ft., and 12ft. is a right triangle.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)