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Brrunno [24]
3 years ago
14

The mass of the part of a metal rod that lies between its left end and a point x meters to the right is 3x^2 kg. Find the linear

density when is 1 m, Where is the density the highest? The lowest?
Mathematics
1 answer:
Sav [38]3 years ago
4 0

Answer:

6 kg/m

Step-by-step explanation:

mass m = 3x^2.

rho ρ= dm/dx =6x

ρ(1) =6 Kg/m

linear density is the derivative of mass (m)  with respect to position(x)

that is how fast is the mass changing at that position.

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I need help on this please!!
Gwar [14]

Answer:

C

Step-by-step explanation:

Using the trigonometric identity

csc x = \frac{1}{sinx}

Given

sinΘ = - 0.4, then

cscΘ = \frac{1}{-0.4} = - 2.5 → C

3 0
3 years ago
Arlene is showing her work in simplifying −7.9 + 8.2 − 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write fee
kodGreya [7K]
The answer is correct but i do not know what ARLENE did wrong
7 0
3 years ago
Read 2 more answers
A bus makes a stop at 2:30, letting off 16 people and letting on 3. The bus makes another stop ten minutes later to let off 2 mo
liq [111]

Answer:

10 people lesser.

Step-by-step explanation:

Initially, it 15 people  get off but 9 people get picked up, hence losing 6 people.  If 4 more people get off, it has then lost 10 people total.

The original number of passengers on the bus decreased by 10 after the second stop

Assume that the total passengers on the bus before 2:30 was x

Now, at 2:30:

15 passengers got off and 9 got on.

This means that:

number of passengers = x - 15 + 9 

number of passengers = x -6

10 minutes later:

4 passengers got off the bus

This means that:

number of passengers = (x-6) - 4

number of passengers = x - 10

The original number of passengers on the bus decreased by 10 after the second stop.

3 0
3 years ago
Write the linear equation
valina [46]

Answer:

y=-3/2x+4

slope=-3/2

y-int= 4

6 0
3 years ago
What is 7 x 9 x 38 x 8282 x383 - y +98 =887
Keith_Richards [23]
My answer -

      This is essay about the time I ran away from home when I was six years old. This was a really important time in my life that taught me about living in the world all by your self. One night at my house I was laying down under the covers. And my mother and father were fighting my father was an abusive alcoholic.

      After every time my father and mother fought she had a another bruise on here face. I couldn't take it anymore I was tired of my mother an father fighting. So I decided to run away I packed my care bear suit case with clothes , food , and my favorite dolly. I climbed out the window of my room.

     They did not even notice I was gone so then I started walking. I met a nice man. Who had a kind face he asked me where were my parents. I did not speak I just stood there life less. He took out his phone and made a call. Then a police car showed up and two officers came out. They said they were coming to take me home.

      I got in the car just like they told me once we got to there were my parents standing there waiting for me. My mother and father gave me a hug and brought me inside. My mother asked me my why I ran away I said because I did not want them to fight anymore.

     She told my that you can't stop people from having conflict or disagreements. That is just life people have several disagreements all the time everyday. But you have got to learn how to end a disagreement . My mother gave me some really important information that day and I will always remember it.

P.S

Happy to help you have an AWESOME!!! day :)

3 0
3 years ago
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