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77julia77 [94]
2 years ago
15

When a particle is located a distance x meters from the origin, a force of cos(πx/7) newtons acts on it. Find the work done in m

oving the particle from x=3 to x=3.5. equation editorEquation Editor Find the work done in moving the particle from x=3.5 to x=4. equation editorEquation Editor Find the work done in moving the particle from x=3 to x=4.
Mathematics
1 answer:
Brums [2.3K]2 years ago
7 0

Answer:

Badass means

Step-by-step explanation:

Bogdanich family

Ros77e up lol

Princess Diana style

Change someones life

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Can someone please help me with this question?
Charra [1.4K]
So what I would do is first multiply the mean by 4 and that is the total u need, 146.5, to have a mean of 36 and 5/8. Next I add the lengths given, which is 110.625, and then I would subtract it from 146.5 which is 35.875 which is 35 and 7/8. You can also check the answer by finding the mean of the 4 numbers and determining if it comes out to 36 and 5/8. The answer is C. Hope this helps!
4 0
3 years ago
If 1/6x + 3 = 7 what is x
kotykmax [81]

Answer:

x = 24

Step-by-step explanation:

1/6 x + 3 = 7

1/6 x = 4

x = 24

6 0
3 years ago
Read 2 more answers
If it takes you 40 minutes to go 20 miles downstream and then 60 minutes on the way back, what is the speed of the current?
IrinaK [193]

Answer:

Speed of Current = 5 miles per hour

Step-by-step explanation:

We know distance formula,

D = RT

Where

D is distance

R is rate

T is time

If we let speed of boat (assume) to be "x" and speed of current to be "c"

Then downstream rate is (with current) = x + c

Upstream rate is (against current) = x - c

40 mins to go 20 miles downstream, that means:

D = RT

20 = (x + c)(40)

and

60 minutes to go upstream, 20 miles, that means:

D = RT

20 = (x - c)(60)

Simplifying first equation:

40x + 40c = 20

Simplifying second equation:

60x - 60c = 20

Multiplying first equation by 60, we get:

60 * [40x + 40c = 20] = 2400x + 2400c = 1200

Multiplying second equation by 40, we get:

40 * [60x - 60c = 20] = 2400x - 2400c = 800

Now we add up both these equations:

2400x + 2400c = 1200

2400x - 2400c = 800

----------------------------------

4800x = 2000

x = 2000/4800 = 5/12

We need speed of current, that is "c", so we plug in the value of x into first equation and solve for c:

40x + 40c = 20\\40(\frac{5}{12}) + 40c = 20\\\frac{50}{3}+40c=20\\40c=20-\frac{50}{3}\\40c=\frac{10}{3}\\c=\frac{1}{12}

Speed of Current = 1/12 miles per minute

Since there is 60 minutes in an hours, that would be:

(1/12) * 60 = 5 miles per hour

Speed of Current = 5 miles per hour

3 0
3 years ago
An angle has a measure of (5x + 7)º, and another angle has a measure of (2x + 54)°.
nadezda [96]

Answer:

17

Step-by-step explanation:

3 0
3 years ago
Help me please again lol :> here's a picture
Delvig [45]

Answer:

It's Same perimeter only

Step-by-step explanation:

It can't be the other two because they don't share the same area

4 0
2 years ago
Read 2 more answers
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