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
1.
Olegator [25]
Hope this helps somewhat

7 0
3 years ago
Question 5
geniusboy [140]

Answer:

\frac{4}{9}

Step-by-step explanation:

To find this probability, we have to know:

  • How many numbers are there in between 5 and 8 inclusive?
  • How many total numbers are there?

We simply divide the first answer by the second one and get our probability.

So, the numbers are 5,6,7,8 ----- that is 4 numbers

How many numbers are there in total?  That is:

0, 1, 2, 3, 4, 5, 6, 7, 8, or 9  ------- 9 numbers

Thus, the probability is 4/9

7 0
3 years ago
-.25 x+1.3=-.55x-.2 find x
Mamont248 [21]
You need to isolate the variable my dividing each side by factors that don’t contain the variable
x=-5
3 0
3 years ago
What is the correct equation to solve for X?
Vanyuwa [196]
It’s the second option
sin(45)=13/x
6 0
2 years ago
HELP dont answer this
Nataliya [291]
Answer jejdidiswjwnsndnwjasnen
8 0
3 years ago
Other questions:
  • Write a number decreased by 7 is at most 13
    10·1 answer
  • Ryan makes 6 backpacks. He uses 3/4 yard of cloth to make each backpack. What is the total amount of cloth, in yards, Ryan uses
    15·1 answer
  • Please help me with this question
    7·1 answer
  • if a die is rolled and a coin is flipped what is the the probability that the coin will be heads and the die will land on a 1,5
    12·1 answer
  • Find the measure of each angle in the triangle.
    11·1 answer
  • Alaina surveys 75 of her classmates and finds that 48% of them like to eat tacos. She also finds that 60% of her 45 relatives li
    14·1 answer
  • Please help I’ll give branliest and 100 points
    11·2 answers
  • WIL GIVE BRAINLIEST PLEASE!!!
    8·1 answer
  • Please help! Find the equation of the line that passes through the point (6, 11) and is parallel to y = 2/3 x - 5
    15·1 answer
  • In quadrilateral LMNO, LO ∥ MN.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!