A football is kicked into the air from an initial height of 4 feet. The height, in feet, of the football above the ground is given by s (t)=-16^2+50t+4, where t is time, in seconds, and t>=0. At what time will the football be 25 feet above the ground?
3.625 seconds
3.20 seconds
0.5 seconds or 3.625 seconds
0.5 seconds or 2.625 seconds

Question

07-07-2016
Mathematics

contestada

A football is kicked into the air from an initial height of 4 feet. The height, in feet, of the football above the ground is given by s (t)=-16^2+50t+4, where t is time, in seconds, and t>=0. At what time will the football be 25 feet above the ground?
3.625 seconds
3.20 seconds
0.5 seconds or 3.625 seconds
0.5 seconds or 2.625 seconds

Respuesta :

Otras preguntas

(10 POINTS AND BRAINLIEST FOR BEST). Last month Ben spent $380 on food and $420 on personal items. What percent of his monthly income did he spend on these item

Rent controls force landlords to price apartments below the equilibrium price level. An immediate effect is a shortage (excess demand) of apartments, because th

Según dice la canción, las tres cosas más importantes en la vida son la salud, el dinero y la seguridad. cierto falso 2. El optimismo, la flexibilidad y la extr

Bob is a summer intern in an office. His boss asks him to organize a storage room filled with old contracts that must be held for another two to four years. Tha

I need help. I don’t understand this

after the civil war what did paper money lead to?

The area of a triangle is 150 cm^2. If the area of a triangle is given by the formula A=0/5b*h, write an equation which relates the triangle's base, b, as a fun

The Persians won the battle of Thermopylae because: The Spartans realized they were outnumbered and fled. A fellow Greek showed the Persians a se

You are a French trader with $10,000 to invest. The dollar-euro exchange rate is quoted as $1.20 = â‚¬1.00 and the dollar-pound exchange rate is quoted at $2.15

Paula y Humberto Suárez llegaron al restaurante El Famoso a las ocho y (seguir) al camarero a una mesa en la sección de no fumar. Question 2 with 1 blankEl seño

meerkat18 meerkat18 · Answer 1 · 2016-07-13T13:11:54+02:00

To answer the question above, substitute the given value of height.
25 = -16x² + 50t + 4
Solving the following equation by the use of quadratic formula,
x = (-b +/- sqrt (b² - 4ac)) / 2a
Subsituting the known values of a, b, and c
x = (-50 +/- sqrt (50² - 4(-16)(-21)) / 2x-16
The values of x are 0.5 and 2.625. Therefore, the answer is the fourth choice.

Dolphinlover021 Dolphinlover021 · Answer 2 · 2021-10-25T20:10:01+02:00

Dolphinlover021 Dolphinlover021

25-10-2021

Answer: D(0.5 seconds or 2.625 seconds)

Hope this helps :)

Answer Link