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
slavikrds [6]
3 years ago
10

A projectile launcher upward with a velocity of 160 feet per second from the top of a 70-foot platform. What is the maximum heig

ht attained by the projectile?

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

  470 ft

Step-by-step explanation:

The equation for ballistic motion is usually written ...

  h(t) = -16t^2 +v0·t +h0

where v0 is the initial upward velocity in ft/s, and h0 is the initial height in ft.

Filling in the numbers given in the problem statement, the equation becomes ...

  h(t) = -16t^2 +160t +70

This can be rewritten to vertex form as follows.

  h(t) = -16(t^2 -10t) +70

  = -16(t^2 -10t +25) +70 +400 . . . . . . add and subtract 400 to complete the square

  = -16(t -5)^2 +470

The vertex of the height vs. time curve is at (t, h) = (5, 470).

The maximum height attained is 470 feet.

You might be interested in
A certain couple tells you that they have two children, at least one of which is a girl. what is the probability that they have
Sidana [21]
The answer is 50/50. The either child is a boy or a girl. 50/50 chance
3 0
3 years ago
Sonia is standing 20 centimeters from the door.brice is standing 20 meters from the door.who is standing further from the door
Sever21 [200]
Hello!

Brice is standing further away from the door, because 20 metres are greater than 20 centimetres.

A lot greater, actually, because 20 metres = 2,000 centimetres.
6 0
3 years ago
PLEASE HELP! EXPLAIN HOW YOU GOT THE ANSWER AND I WILL MARK BRAINLIEST!
kow [346]
3 prefer pop:4 prefer rock
3/4 prefer pop
(3/4)of 14=0.75*14=10.5 people/14people
around 11 people would prefer pop out of 14
7 0
3 years ago
34 + x = 40<br><br> what does "x" equal? :3<br><br> ~Potato
marissa [1.9K]
Try doing 40 - 34 first:
40 - 34 = 6
Now try 34 + 6
34 + 6 = 40
X=6
~Deceptiøn
6 0
3 years ago
Read 2 more answers
Please help! Correct answer only, please! Consider the following information matrices for the price of clothing at a clothing st
ololo11 [35]

Answer: b) Large blue t-shirt & Medium RC jeans

<u>Step-by-step explanation:</u>

The subscript numbers attached to the matrix letter represents the:

ROW, COLUMN

A=\left[\begin{array}{ccc}a_{1,1}&a_{1, 2}&a_{1, 3}\\a_{2,1}&a_{2, 2}&a_{2, 3}\\a_{3,1}&a_{3, 2}&a_{3, 3}\end{array}\right] \qquad B=\left[\begin{array}{ccc}a_{1,1}&b_{1, 2}&b_{1, 3}\\b_{2,1}&b_{2, 2}&b_{2, 3}\\b_{3,1}&b_{3, 2}&b_{3, 3}\end{array}\right]\\

A₁,₃ = 1st row, 3rd column

         1st row is Blue, 3rd column is Large

B₃,₂ = 3rd row, 2nd column

         3rd row is RC jeans, 2nd column is Medium

A₁,₃ + B₃,₂ = Large blue t-shirt & Medium RC jeans

8 0
3 years ago
Other questions:
  • Amy has a mass of 50 kg and she is riding a skateboard traveling 10 m/s what is her momentum?
    7·2 answers
  • Cos(x/5)sin(x/5)=1/2[sin(2x/5) true or false
    11·1 answer
  • Mr.Marcus is plotting a pack of pencils equally among his 25 students. After splitting the pencils he has 4 left. If there were
    8·1 answer
  • Which should equal 105° to prove that f // g?<br> a<br> b<br> С<br> d
    13·1 answer
  • Select the word statement that best matches the number statement
    12·1 answer
  • Construction crew is using heavy equipment to dig a hole in which the foundation of a house will be built. The whole will be in
    14·1 answer
  • The frequency,f kilohertz of a radio wave is inversely proportional to its wavelength, Ym. The frequency of a radio wave that ha
    8·1 answer
  • A store pay $120 for a bicycle. The store has a 60% markup policy. What is the selling price of the bicycle?
    7·2 answers
  • Q.<br><br>10² + 20² - 5! = ?<br><br>note : ! it's a factorial sign<br><br>Goodluck​
    13·2 answers
  • Help please it geometry plz
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!