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
aleksley [76]
3 years ago
5

A water balloon is tossed into the air with an upward velocity of 25 ft/s. Its height h(t) in ft after t seconds is given by the

function h(t) = − 16t2 + 25t + 3. Show your work.
19. After how many seconds will the balloon hit the ground? (hint: Use the quadratic formula)

20. What will the height be at t = 1 second
Mathematics
2 answers:
sammy [17]3 years ago
7 0
19. The balloon hits the ground means -16t2+25t+3=0
After you solve the equation, there are 2 solution ~1.67 or ~-0.11 (the time can not be negative) so the solution is 1.67s
20.substitute t=1 to the function -16(1)2+25(1)+3=-16+25+3=12 ft. So the height is 12ft when t=1
Komok [63]3 years ago
6 0

Step-by-step explanation:

Given that,

A water balloon is tossed into the air with an upward velocity of 25 ft/s. Its height h(t) in ft after t seconds is given by the function as :

h(t)=-16t^2+25t+3...................(1)

(a) we need to find the time when the balloon hits the ground. When it hits the ground h(t) = 0

-16t^2+25t+3=0  

Using above equation we get the value of t, t = 1.674 seconds

So, after 1.674 seconds the balloon hits the ground.

(b) We need to find the height at t = 1 seconds. Put the value of t = 1 seconds in equation (1) as :

h(1)=-16(1)^2+25(1)+3

h = 12 feet

So, at t = 1 seconds the height of the balloon is 12 feets.

You might be interested in
Please help me IDK how to do this!!!!!!
tatiyna
A parallelogram should have 2 sets of parallel lines. Let's find the slope of line PQ and RS to test.

PQ:
(4-2)/(1-(-3))
2/4
1/2

RS:
(2-0)/(3-1)
2/2
1

Because 1 does not equal 1/2 (the slopes are different) the lines are not parallel. Thus, the figure is not a parallelogram.
5 0
2 years ago
Lester's Pizza sells pizza by the slice for lunch. Today, there are 80 slices ready for lunch, including 12 slices of pepperoni
Oxana [17]
Whats the questions your asking?
7 0
2 years ago
Plz help me!!
zmey [24]
Y> -4a=36 or 36=-4a< y
3 0
3 years ago
How would you figure out (-3)(-8) (multiplying integers)
Sati [7]

Answer:

24

Step-by-step explanation:

(-3)(-8)

A negative times a negative is a positive

+ 3*8

+ 24

4 0
3 years ago
What is the area of the following circle?
satela [25.4K]

Answer:

This is the answer of your question.

8 0
2 years ago
Other questions:
  • If line WP is a median and an angle bisector, AP = 3y+11, PH = 7y - 5, angle HWP = x +12, angle PAW = 3x - 2, and angle HWA = 4x
    14·1 answer
  • The area of a square poster is 987cm square.Find the perimeter of the poster, leaving your answer correct to 1 decimal place
    12·1 answer
  • A bakery sells 8 muffins for every 6 bread rolls. They sell 640 muffins in one week, how many rolls did they sell? USE SCALAR MU
    7·1 answer
  • What's the answer to this question?
    14·1 answer
  • Which sum will be neither positive nor negative. a. 3+2 b. -4+(-4) c. -6+6 d. 7+(-6)​
    7·1 answer
  • A restaurant receives a shipment of
    8·1 answer
  • two submarines, one red and one blue, started rising toward the surface at the same time.they each rose at a constant speed. the
    15·1 answer
  • I need help with this problem! Please Help<br> t=-2.74 + sqrt(2.74^(2)-4*-4.9*(-10)) -: 2*-4.9
    9·2 answers
  • During gym class yesterday. Jason was able to throw a football about 66 feet down the field. Using the
    6·2 answers
  • Factor completely the expression: 2x^3 - 2x^2 - 12.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!