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
frutty [35]
3 years ago
11

A hovercraft takes off from a platform.

Mathematics
2 answers:
lubasha [3.4K]3 years ago
7 0

Answer:

81 meters.

Step-by-step explanation:

The height (in meters), h(x) of a hovercraft x seconds after takeoff, is modeled by:

h(x)=-3(x-3)^2+108

We are to determine its height at the time of takeoff.

Now, at the time of takeoff, x=0.

We substitute x=0 to solve for h.

h(0)=-3(0-3)^2+108\\=-3(-3)^2+108\\=-3(9)+108\\=-27+108\\=81$ meters

The height of the hovercraft at takeoff is 81 meters.

MatroZZZ [7]3 years ago
5 0

Answer:

33

Step-by-step explanation:

KHAN SAYS SO

You might be interested in
An assembly line produces 20 items per hour . If the line runs 24 hours per day, 7days week ,how many items are made by this mac
Leya [2.2K]

All you do is do 20 x 24 x 30. You get 600 X 24 which is 14,400, or C.





3 0
3 years ago
563-273 do you have to regroup
Marizza181 [45]
Yes you do because you cannot subtract 7 from 6.
8 0
3 years ago
A store is having a 20% off sale. If the
Aleks [24]

Answer:

$64.32

Step-by-step explanation:

What you do is:

$53.60×20% → $53.60×0.2

$53.60×0.2=$10.72

$10.72 is the amount of money taken off because of the sale.

Then what you do is:

$53.60+$10.72=_____

53.60

<u>+10.72</u>

64.32

The original price was $64.32.

Hope this helps! Please mark my answer brainliest!

3 0
3 years ago
Read 2 more answers
Is 12/17 equivalent to 10/15 in ratio form
serg [7]

Answer: yes

Step-by-step explanation: Joshua

5 0
3 years ago
Y=-x-3
nadya68 [22]

Answer: Heyaa! :)

  • <em>1. y=-x-3 = -1</em>

<em>Slope:  </em>−1

<em>y-intercept: </em>(0,−3)

  • <em>2. y=4x-5 =</em> 4

<em>Slope:</em> 4

<em>y-intercept: </em>(0,−5)

  • <em>3. 2x-y=-2 =</em> 2

<em>Slope:</em> 2

<em>y-intercept:</em> (0,2)

  • <em>4. x+y=4 =</em> 1

Slope: −1

<em>y-intercept:</em> (0,4)

  • <em>5. 3x+4y=-12 = - 3/4</em>

<em>Slope: </em>−3/4

<em>y-intercept: </em>

(0,−3)

Hopefully this helps<em> you!</em>

<em />

- Matthew

4 0
2 years ago
Other questions:
  • When Roberto got a puppy from the shelter, it weighed 11 pounds. The puppy gained 40% of its original weight in the first month
    13·1 answer
  • PLZ HELP FAST!!!!!!!!!​
    7·1 answer
  • If a door is 36 inches in width opens to an angle of 140 degrees,how large an arc is created?
    8·1 answer
  • Is this in scientific notation?
    12·2 answers
  • Зcx + cx = 7 <br> solve for x if c represents a consonant
    11·1 answer
  • What's 31+1?<br> I really need to pass this quiz please
    11·2 answers
  • What is the difference in average speed between two cars, one that traveled 160 kilometers in 5 hours, and the other that travel
    7·2 answers
  • Helppppppppppppppp!!!!!
    6·1 answer
  • Math Help Part 2 (Please Help)
    7·1 answer
  • What is the least two common multiplication 2 and 5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!