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Oksana_A [137]
2 years ago
14

A particle p is moving along the x-axis the displacement x metres from O can be writen as x=t^5-12t²+9 find the velocity

Mathematics
1 answer:
Lisa [10]2 years ago
5 0

Answer:

v = t (5t^{3} - 24)

Step-by-step explanation:

We are given an expression to solve for the displacement (x), so in order to find velocity (v), we need to differentiate the function.

============================================================

Solving :

⇒ \frac{dx}{dt} = \frac{d}{dx} (t^{5} - 12t^{2} + 9)

⇒ v = (5)t^{5-1} - (2)12t^{2-1} + 0

⇒ v = 5t^{4} - 24t

⇒ v = t (5t^{3} - 24)

Using this equation, we can find the velocity if a value of t is given.

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Tahnks for helping it will mean a lot
VMariaS [17]

Answer:

- 1.2  , - \frac{1}{2} ,0.44,\frac{7}{3}

Step-by-step explanation:

We want to arrange the following numbers on the number line in order from least to greatest.

The numbers are:

0.44, \frac{7}{3} , - 1.2, -  \frac{1}{ 2}

Let us convert everything into decimals to get:

0.44,2. \bar3 , - 1.2, - 0.5

Rearranging from least to greatest, we have:

- 1.2  , - 0.5 ,0.44,2. \bar3

6 0
3 years ago
Giovanni purchased 25tickets to an airshow. the cost of an adult's ticket is $14 and the child's ticket is $8. if the total cost
Masteriza [31]

Giovanni purchased 20 adult tickets and 5 child's tickets.

Step-by-step explanation:

Let,

x = Adult tickets

y = Child's tickets

According to given statement;

x+y=25 Eqn 1

One adult ticket costs $14 and one child ticket costs $8, therefore,

14x+8y=320 Eqn 2

Multiplying\ Eqn\ 1\ by\ 8\\8(x+y=25)\\8x+8y=200\ Eqn\ 3\\Subtracting\ Eqn\ 3\ from\ Eqn\ 2\\(14x+8y)-(8x+8y)=320-200\\14x+8y-8x-8y=120\\6x=120\\Dividing\ both\ sides\ by\ 6\\\frac{6x}{6}=\frac{120}{6}\\x=20

Putting value of x in Eqn 1;

20+y=25\\y=25-20\\y=5

Giovanni purchased 20 adult tickets and 5 child's tickets.

Keywords: Linear equations, Addition

Learn more about linear equations at:

  • brainly.com/question/4460262
  • brainly.com/question/4464845

#LearnwithBrainly

6 0
4 years ago
TJ bought 3 t-shirts & a pair of shorts for $15. If each shirt was $4.25, how much were the shorts?
arsen [322]
You have $15.00 and each shirt you bought was $4.25 
$4.25x3=$12.75
$15.00-$12.75= $2.25

So your shorts were $2.25
7 0
3 years ago
Raghav, Rajit, Junsu, Mia, and Umema were finished with lunch and began playing with drink straws. Each one was making a line de
vodomira [7]

Answer:

x = 25.8^{o} and y = 51.4^{o}

Step-by-step explanation:

Known that he sum of angles on a straight line is 180^{o}. From the diagram;

2y + x + y = 180^{o}

x + 3y = 180^{o} ................ 1

Also,

2x + x + 2y = 180^{o}

3x + 2y = 180^{o} .............. 2

Using the elimination method, multiply equation 1 by 3 and equation 2 by 1

3x + 9y = 540 ............ 3

3x + 2y = 180^{o} ............. 4

7y = 360

y = \frac{360}{7}

y = 51.4^{o}

substitute the value of y in equation 1,

x + 3y = 180^{o}

x + 3(51.4) = 180^{o}

x + 154.2 = 180^{o}

x = 180^{o} - 154.2

x = 25.8^{o}

Thus, x = 25.8^{o} and y = 51.4^{o}

6 0
3 years ago
What’s the correct answer answer asap
CaHeK987 [17]
I think overfishing, not too sure
8 0
2 years ago
Read 2 more answers
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