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
Morgarella [4.7K]
3 years ago
6

Can someone please read that and give me an answer, i’ve been stuck on it for awhile.

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0

Answer:

after 21 seconds

Step-by-step explanation:

Given

h = - 16t² + 272t + 1344

When the ball strikes the ground then h = 0, that is

- 16t² + 272t + 1344 = 0 ( divide through by - 16 )

t² - 17t - 84 = 0 ← in standard form

(t - 21)(t + 4) = 0 ← in factored form

Equate each factor to zero and solve for t

t - 21 = 0 ⇒ t = 21

t + 4 = 0 ⇒ t = - 4

However t > 0 thus t = 21

The ball strikes the ground after 21 seconds.

You might be interested in
20 points time cause i appreciate the help
Crazy boy [7]

Answer: 4188.8

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
You will spend 4 hours each day making play
Naddika [18.5K]

Answer:

timetaken to produce a playdough =4hours

a batch of playdough is produced in =1/6 hour

in 1hour,it will take 6 multiplied by a batch of playdough=6 batches of playdough to be produced

4 hours of making playdough in a day will produce=4 multiplied by 6 batches of playdough=24 batches of playdough in a day

4 0
3 years ago
What is 7 7/9 divided by 4/7
e-lub [12.9K]

Answer:

4 44/49

Step-by-step explanation:

7 7/9 is 70/9

then u use 70/9 multiply by 7/4(I call it keep, change, flip method for division of fraction)

You keep the 1st fraction and because it is a mixed fraction, changing it to improper fraction is easier to solve it later on.

after that, you change the division sign to multiply sign(÷ to ×)

then you flip the 2nd fraction, which means 7/4 becomes 4/7

So overall it becomes 60/7 × 4/7 =240/49,4 44/49 as a mixed fraction.

Answer is 4 44/49

5 0
3 years ago
The vertices of a quadrilateral are M(-1,1), N(1,-2),O(5,0), and P(3,3).
Komok [63]

Answer:

Quadrilateral MNOP is a rectangle.

Step-by-step explanation:

7 0
3 years ago
What is the value of x in the equation x - y = 30, when y = 15?
igor_vitrenko [27]

Answer:

o 200

fctvtvtv

Step-by-step explanation:

O200 o200

6 0
2 years ago
Other questions:
  • How could you increase the mass of a wooden block?
    11·1 answer
  • The temperature at 4AM was-4C and at 7am 3C higher. What was the temperature at 5 am
    9·1 answer
  • Help! 144/360 reduced using prime factorization
    6·1 answer
  • (6) (Bonus) A rectangular box has its edges changing length as time passes. At a particular instant, the sides have lengths a =
    5·1 answer
  • What is the value of the expression when n=3 -2(5+n-8-3n)
    5·2 answers
  • 1 divided by 0.80. Please show work.
    13·2 answers
  • What is the average rate of change of f(x), represented by the table of values, over the interval [-3, 2]?
    6·2 answers
  • 5x + 8 = 43 <br> What is x
    8·2 answers
  • Find the domain and range of the<br>function y = f(x)= √x-2<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20-%202%7D%20" i
    5·1 answer
  • What number goes to the blank space t make the following equation true<br><br> 43+29= +60
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!