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
Two​-thirds of the​ T-shirts in a​ T-shirt shop are blue. Three​-fifths of those​ T-shirts are on sale. ​One-half of the blue​ T
katrin2010 [14]

Let, total number of T-shirts are x.

Number of blue T-shirts = (2/3)x = 2x/3 .

Number of blue shirts on sale = (3/5)(2x/3) = 2x/5 .

Number of medium sized blue shirts on sale = (1/5)(2x/5) = 2x/25 .

Fraction of the​ shop's T-shirts are blue​ T-shirts that are on sale and are size​ medium = \dfrac{2x/25}{x}= 2/25 . ( Number of medium sized blue shirts on sale divided by total number of T-shirts )

Hence, this is the required solution.

5 0
3 years ago
7% of 120 (Need work shown)
inessss [21]
1% of 120 is 1.2, so 7 *1.2 = 8.4

Also you could set up the proportion 7/100 = x/120 and solve for x.
3 0
3 years ago
Read 2 more answers
If one face of a cube has an area of 6 square inches, what is the surgace area of the entire cube?
postnew [5]
36 is the answer, there are 6 faces of a cube multiply it by 6.
3 0
3 years ago
Indicate the equation of the given line in standard form. The line with slope 9/7 and containing the midpoint of the segment who
vfiekz [6]
I got y = 9/7x - 3/7
5 0
3 years ago
Can you help me please!!!!
Alexeev081 [22]

Answer:

Step-by-step explanation:

(-10,0)(0,-4)

find slope

m=-2/5

b=-4

y=-2/5x-4

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the retail price of the couch?
    11·2 answers
  • Consider the expressions below
    14·1 answer
  • The regular nonagon has rotational symmetry of which angle measures? Check all that apply. 40° 45° 120° 240° 260° 320°
    7·2 answers
  • Find the length of AB<br><br> A.) 2<br> B.) 6<br> C.) 21<br> D.) 31
    6·2 answers
  • A county fair charges $5 for tickets and $2 for each ride. What is the y-intercept in this scenario?
    6·1 answer
  • Forty discrete math students are to be divided into eight discussion groups, each consisting of five students. In how many ways
    15·1 answer
  • Q3: Mathew bought 5 video games for $72. If each video cost the same price, which of the following Is true? Choose all that appl
    14·1 answer
  • How do you work 5e=3e+36​
    5·1 answer
  • Please help asap asap asap
    14·1 answer
  • Insert a digit in each place "..." to make numbers that are divisible by 6
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!