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
Cerrena [4.2K]
4 years ago
13

A vehicle is moving in a straight line. The velocity Vms^-1 at time t seconds after the vehicle starts is given by V = A (t− 0.0

5t^2) for 0 ≤ t ≤ 15. What is the value of A?
Mathematics
2 answers:
Harlamova29_29 [7]4 years ago
4 0

Answer:

Step-by-step explanation:

Ne4ueva [31]4 years ago
3 0

Answer:

The value of A is (-\infty, 0) \cup(0, \infty)

Step-by-step explanation:

Given:

V = A (t- 0.05t^2)

When velocity V= 0

we have

A (t- 0.05t^2) = 0

(t- 0.05t^2) = 0

t = 0.05t^2

t =0 , t = \frac{1}{0.05}

t = 0 , t = 20

So when we draw a graph,The resulting graph will be  a quadratic graph.

\frac{dv}{dt} = A[1 - 0.1t]

\frac{dv}{dt} = 0

t=10 sec

At t=10, the velocity will be

v(10) = [10 -0.05(10)^2]

v(10) = [10 -5]

v(10)  = 5A

But according to the question A is not dependent on t

So A can be any  value other than zero

You might be interested in
Movie genres. The pie chart summarizes the genres of 120 first-run movies released in 2005. a) Is this an appropriate display fo
butalik [34]

Answer:

Yes, it is appropriate

Step-by-step explanation:

Given

See attachment for pie chart

Required

Is the pie chart appropriate

The attached pie chart displays the distribution of each of the 4 genre. The partition occupied represents the measure of each genre.

5 0
3 years ago
The navy contract was for 2,314 devices and took 23 workers two weeks (40 hours per week) to complete. The army contract was for
AlekseyPX

Answer:

0.408 hour / device

Step-by-step explanation:

As we know The army contract was for 4,707 devices that were produced by 16 workers which means 1 worker can produce: \frac{4707}{16} ≈294 devices in 3 weeks.

<=> 294 devices= 3*40 hours

<=> 294 devices = 120 hours

<=> 1 device = 120/294 = 20/49 ≈ 0.408 hour

So it takes 0.408 hour for a worker to finish producing 1 devicein the army contract

3 0
3 years ago
A county fair charges $9.00 for admission and $2.50 per ride. If Latisha spent $49 on admission and rides, how many rides did La
Hunter-Best [27]

Answer:

Latisha rode 16 rides

Step-by-step explanation:

Look at picture attached. Have a blessed night!

Just slope intercept formula (y=mx+b). X represents the number of rides so you will need to myltiply that by $2.50. $9 is a one time fee so that would be of the b of the equation. That all equals the total Latisha piaid, $49. Then solve like so.

4 0
2 years ago
Find two consecutive odd integers such that their product is 23 more than 5 times their sum.
Zina [86]

If x is the smaller one, and is odd, the next consecutive odd integer is x+2.

x(x+2) = 23 + 5(x+ (x+2))

x^2 + 2x = 23 +5(2x+2)

x^2 + 2x = 23 + 10x + 10

x^2 -8x - 33 = 0

(x-11)(x+3) = 0

x = 11\textrm{ or }x=-3

Check:

11(13) = 143

23 + 5(11 + 13) = 23 + 120 = 143, check

-3(-1) = 3

23 + 5(-3 + -1) = 3, check

Answer: 11,13 or -3,-1



7 0
3 years ago
Help me with this question math please
Dafna1 [17]

Answer:

42.94$ is the answer.....

6 0
3 years ago
Other questions:
  • Roger makes 70 gallons of pink paint by mixing 21 gallons of white paint. what part of every gallon is from red paint?
    10·1 answer
  • How many kilometers?
    14·1 answer
  • How many zeros are in the standard form of six hundred thousand, twenty? Explain
    11·1 answer
  • 2. Find the distance between (-3,2) and (4,8).​
    13·2 answers
  • What is 6 [4•(72-63)÷3]
    15·1 answer
  • 8 oranges between 4 people. How many oranges will each person get?
    8·2 answers
  • An island has a popularity of 1500 and is growing at a rate of 3% per year. what will the popularity be after 6 years?
    11·1 answer
  • Using the graph, determine the coordinates of the y-intercept of the parabola.
    10·1 answer
  • PLEASEEEE HELP ME
    9·1 answer
  • 6x + 15 &lt; 600 = <br><br> i need this answer fast
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!