Mathematics, 26.05.2021 17:30 hannahkharel2

A trebuchet launches a projectile from a hilltop 30 feet above ground level on a parabolic arc at a velocity of 40 feet per second. The equation h=−16t2+40t+30 models the projectile's h height at t seconds. How long will it take for the projectile to hit its target on the ground (to the nearest tenth of a second)?

2.8 seconds

3.1 seconds

3.5 seconds

3.9 seconds

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:50, rex1578

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Answers: 3

continue

Mathematics, 21.06.2019 16:50, joshsd8479

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Answers: 2

continue

Mathematics, 21.06.2019 18:00, joshuahagerman1404

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Answers: 3

continue

Mathematics, 21.06.2019 23:00, edisonsitesuper9312

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides. should be his answer

Answers: 1

continue

You know the right answer?

A trebuchet launches a projectile from a hilltop 30 feet above ground level on a parabolic arc at a...