1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna007 [38]
3 years ago
8

A ball is thrown in the air from a ledge. Its height in feet is represented by  f(x) = –16(x^2 – 5x – 6), where x is the number

of seconds since the ball has been thrown. The height of the ball is 0 feet when it hits the ground. How many seconds does it take the ball to reach the ground? As
Mathematics
1 answer:
leonid [27]3 years ago
6 0
I believe your answer is 6 seconds.

Because the height of the ball = -16(x² - 5x - 6), when the height of the ball is 0, which is when it is on the ground, we can set -16(x² - 5x - 6) equal to 0. This also allows us to divide by -16, and then we can solve the equation:

x² - 5x - 6 = 0
(x - 6)(x + 1) = 0

So x = 6 or x = -1, and because a quantity of time cannot be negative, x would have to be 6, which means it takes 6 seconds for the ball to reach 0 feet.

I hope this helps!
You might be interested in
Solve -2x ≤ -4. Graph the solution
horsena [70]
Https://us-static.z-dn.net/files/d2a/4dd214e6e402aa7e840049f27983c856.jpeg

3 0
3 years ago
What is 16 : 24 in simplest form
REY [17]
2/3

16/24 and divide the greatest common factor (8)
3 0
3 years ago
Read 2 more answers
Write in surd form<br><img src="https://tex.z-dn.net/?f=%20%7B13%7D%5E%7B%5Cfrac%7B5%7D%7B2%7D%20%7D%20" id="TexFormula1" title=
Airida [17]

Answer:

sqrt(13^2)

Step-by-step explanation:

this is the radical form of 13^(5/2)

6 0
2 years ago
Read 2 more answers
HELP PLSSSS I will GIve BRainlyest
Sonbull [250]

Answer:

The independent is the weight of all the people already on the elevator and the dependent variable is the weight of the elevator after you get on.

5 0
3 years ago
Read 2 more answers
Math help please? &lt;3 Last 2 questions
marysya [2.9K]
(2,-4) hope this helps
8 0
2 years ago
Other questions:
  • How do u do #22? Plz show me how u did it
    6·1 answer
  • Whoever gets this right gets brainlyess answer and it's worth 10 points :)
    8·1 answer
  • Which literal equations are equivalent to p = mv?
    15·1 answer
  • Find the area of a rectangle with a perimeter of 12 meters and a base of 4 meters
    15·1 answer
  • Kay leaves a $6 tip for a $40 bill. What percent tip did kay leave?
    12·2 answers
  • TAKING TEST PLEASE HELP
    15·1 answer
  • Which measurement is closest to the length of one string of lights in feet ??​
    11·1 answer
  • A proportional relationship exists between x and y. When X=8 the value of Y is 14
    7·1 answer
  • What is the answer for the following equation?<br><br>53 x 65 + 36 ÷ 5 = ?<br>​
    10·2 answers
  • Simplify the algebraic expression.<br> 2v−8(3+2v)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!