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
MArishka [77]
1 year ago
7

A ball is thrown in the air from the top of a building. Its height, in meters above ground, as a function of time, in seconds, i

s given by
h(t) = −4.9t(squared) + 20t + 12.
How long does it take to reach maximum height? (Round your answer to three decimal places.)
Mathematics
1 answer:
attashe74 [19]1 year ago
5 0

The ball takes approximately a time of 2.041 seconds to reach its maximum height.

<h3>What time does the ball take to reach maximum height?</h3>

The height of the ball as a function of time is modelled by a <em>quadratic</em> equation, the required information can be found by transforming the expression into <em>vertex</em> form:

h = - 4.9 · t² + 20 · t + 12

h = - 4.9 · (t² - 4.082 · t - 2.449)

h + (- 4.9) · (6.615) = - 4.9 · (t² - 4.082 · t + 4.166)

h - 32.414 = - 4.9 · (t - 2.041)²

The ball takes approximately a time of 2.041 seconds to reach its maximum height.

To learn more on quadratic equations: brainly.com/question/1863222

#SPJ1

You might be interested in
If \triangle ABC△ABC is equilateral, solve for x. <br><br><br><br><br> x=
Gwar [14]

Answer:

x = 13

Step-by-step explanation:

The tirangle ABC is given as equilateral. Every angle is therefore =. Not only that, each angle is 60 degrees.

If you need proof of that, remember that x + x + x  = 180. Every triangle has 180 degrees.

if 3x = 180 then 1 x is 60

8x - 44 = 60       Add 44 to both sides.

8x = 60 + 44

8x = 104             Divide by 8

x = 104/8

x = 13

6 0
3 years ago
Read 2 more answers
This wind would be called a
Rina8888 [55]
Southeast, because it is between south and east on a compass
7 0
2 years ago
Read 2 more answers
How many different 4-digit numbers can be made from the digits 0, 1, 3, 5, and 7 if no digit is repeated in a number and zero ca
quester [9]

Answer:

There are 96 ways different 4 digit numbers which can be made from these 5 digits.

Step-by-step explanation:

There are 5 different digits. The first one must be

1 3 5 or 7

So you can have 4 for the first one. Now the zero can be put into the mix.

4 * 4 * 3 * 2

96

6 0
2 years ago
Christopher bought a new watch at the store when they were having a 20% percent off sale. If the regular price of the watch was
MrMuchimi
$38.40
48 x .2 = 9.6
48 - 9.6 = 38.4 
6 0
3 years ago
3.14 x 10<br><img src="https://tex.z-dn.net/?f=3.14%20%5Ctimes%2010%20%3D%20" id="TexFormula1" title="3.14 \times 10 = " alt="3.
fiasKO [112]

When you multiply 10, move the decimal point to the right one place value

3.14 x 10 = 31.4

31.4 is your answer

hope this helps

6 0
3 years ago
Read 2 more answers
Other questions:
  • It cost the company $0.20 to make a box of mints. If the company sells each box for $3, and it’s total yearly profit is $280,000
    13·1 answer
  • A professor has recorded exam grades for 10 students in his​ class, but one of the grades is no longer readable. If the mean sco
    15·1 answer
  • The price of a CD was decreased by 2% to £14. what was the price before the decrease?
    6·2 answers
  • Ill mark u brainliest if u answer pls answer fast&amp; its worth 49 points:
    13·1 answer
  • Find the value of x. Round to the nearest tenth. Can you please give me the step by step?
    14·1 answer
  • (_+10)(_+-1)= 11x^2+17x-10 in factored form
    14·1 answer
  • Ava is making punch for the entire class. She mixed 3 gallons of lemonade with every 7 gallons of Hawaiian Fruit Punch to make t
    13·2 answers
  • If a bike travels 15m in 2 sec, what is its speed in km/h?
    6·1 answer
  • What is 10% of 75? Use the double number line below to label your work and answer.
    14·2 answers
  • Carolyn and Joyce ordered a large pizza that had 12 slices. Carolyn ate 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!