OpenStax, Elementary Algebra 2e §6.1 Add and Subtract Polynomials · Exercise 82 · Algebra · Polynomials

Add and Subtract Polynomials · Exercise 82

Height of Projectile The height (in feet) of an object projected upward is given by the polynomial $- 16 t^{2} + 60 t + 90$ where $t$ represents time in seconds. Find the height after $t = 2.5$ seconds.

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · compare with the solution

OpenStax, Elementary Algebra 2e · §6.1 Add and Subtract Polynomials · Exercise 82

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.