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
Rearrange 3x - 6y = -2 to the form y=mx + c
wel

3x - 6y = -2

-6y = -3x - 2, divide through by -1

6y = 3x + 2, divide through by 6

y = 3x/6 + 2/6

y = x/2 + 1/3

5 0
3 years ago
Read 2 more answers
Which point is on the line y = -2x + 3?<br><br> (-2, -1)<br> (3, 3)<br> (3, -3)<br> (-3, -9)
xenn [34]
I think the answer is (3,3)

5 0
3 years ago
Please soleeeeeeeeeeeeèeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee​
sineoko [7]

Step-by-step explanation:

Answer is 99. I am pretty sure.

8 0
3 years ago
I need help again.lol
Monica [59]

Answer:

13\ units

Step-by-step explanation:

One is asked to find the distance between two points on a coordinate plane. The easiest way to do so is to use the distance formula, this formula is the following:

D=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2

Where ((x_1,y_1)) and ((x_2,y_2)) are the points which one needs to find the distance between. In this case, these points are as follows:

k\ (-3,5)

j\ (-8, -7)

Substitute these points into the formula and solve for the distance between these points,

D=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2

D=\sqrt{((-3)-(-8))^2+((5)-(-7))^2

Simplify,

D=\sqrt{((-3)-(-8))^2+((5)-(-7))^2

D=\sqrt{(-3+8)^2+(5+7)^2

D=\sqrt{(5)^2+(12)^2

D=\sqrt{25+144}

D=\sqrt{169}

D=13

8 0
2 years ago
Two hot air balloons are traveling
xxMikexx [17]

Answer:

Traveling to where?

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • I WILL REWARD BRAINLIEST!!!
    8·2 answers
  • Which of the following is an example of qualitative data
    12·1 answer
  • HOW DO U DO THIS????
    10·1 answer
  • Please answer and show work :)
    14·2 answers
  • Last one I promise plz help
    13·1 answer
  • Giving brainliest !!!
    14·1 answer
  • Hii I have another thing I need help with smh
    15·1 answer
  • If I donate 250 milliliters in 12 minutes and need to reach 825 milliliters, how long will it take to complete the donation?
    6·1 answer
  • /gpf-kuok-frr pls come here ​
    12·1 answer
  • A _____________ _________________ is used to smother small fries on/in objects or on a person.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!