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
Vera_Pavlovna [14]
3 years ago
15

An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t 2) 3

seconds 4 seconds 9 seconds
Mathematics
2 answers:
Nastasia [14]3 years ago
8 0

Answer:

t = 3 seconds

Step-by-step explanation:

Given that,

Height of the building, h = 144 feet

Initial speed of the object, u = 0

To find,

After how many seconds does the object hit the ground.

Solution,

The equation of an object when it falls from height h is given by :

h(t)=-16t^2+ut+h

When the object hits the ground, h(t) = 0

-16t^2+144=0

16t^2=144

t = 3 seconds

So, the object will take 3 seconds to hits the ground.

dimulka [17.4K]3 years ago
7 0
3 seconds is the answer 
You might be interested in
Which property of addition is used in the expression?<br> 0.5+ (0.4+0.8) = (0.5 +0.4) + 0.8
AfilCa [17]
Commutative property i think
6 0
3 years ago
Read 2 more answers
A
DIA [1.3K]

Answer:

qwertyuo;kjghjkl;'

Step-by-step explanation:

43r567890op0oy76t43rtbhjm,ju765

5 0
3 years ago
A number increased by two-thirds of the number is 35. What is the number?
kirza4 [7]
21 would be the answer hope this helps :)
5 0
3 years ago
Read 2 more answers
Triangle DABC is similar to DEFG.
lyudmila [28]

Answer:

is there an image provided?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the measurement of angle a?
Illusion [34]
Assuming we have parallel lines, we can solve for x.
Since a = 3x - 10 (vertically opposite angles are equal),
3x - 10 = 2x + 15 (alternate angles are equal)
x = 25

Hence, angle a = 3(25) - 10 = 65°
6 0
3 years ago
Other questions:
  • Use the conditional statement to answer the question. If an angle is a right angle, then the angle measures 90°. Are the stateme
    13·2 answers
  • Mario has gross biweekly earnings of $784.21. By claiming 1 more withholding allowance, Mario would have $13 more in his take ho
    5·2 answers
  • Solve the system using the addition method. State your solution as an ordered pair.
    5·1 answer
  • Evaluate 12²- 4 (6) + 1/ 11²
    5·1 answer
  • Which expression is not equivalent to –3x + 24? Select all that apply.
    14·1 answer
  • If 2x + 1=7 what is the value of x​
    7·2 answers
  • PLEASE HELP!! I need this completed ASAP but I don't understand any of it!! It's due very soon!
    12·1 answer
  • A circle has a diameter of 22 mm. What is its circumference?
    15·2 answers
  • Help plzzz just this
    14·2 answers
  • A triangular prism is 13 meters long and has a triangular face with a base of 12.6 meters and a height of 16.6 meters. What is t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!