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strojnjashka [21]
3 years ago
14

A thin wire has the shape of the first-quadrant part of the circle with center the origin and radius q. If the density function

is rho(x, y) = kxy, find the mass and center of mass of the wire. mass

Mathematics
1 answer:
irina [24]3 years ago
5 0

Answer:

Step-by-step explanation:

Check attachment for solution

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20 earth pounds on the moon
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20 earth pounds on the moon would equate to 3.31 pounds.
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There is a set of 12 cards numbered 1 to 12. A card is chosen at random. Event A is choosing a number less
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The number of permutations of picking 4 pens from the box is 30.

There are six different unique colored pens in a box.

We have to select four pens from the different unique colored pens.

We have to find in how many different orders the four pens can be selected.

<h3>What is a permutation?</h3>

A permutation is the number of different arrangements of a set of items in a particular definite order.

The formula used for permutation of n items for r selection is:

    ^nP_r = \frac{n!}{r!}

Where n! = n(n-1)(n-2)(n-3)..........1 and r! = r(r-1)(r-2)(r-3)........1

We have,

Number of colored pens = 6

n = 6.

Number of pens to be selected = 4

r = 4

Applying the permutation formula.

We get,

= ^6P_4

= 6! / 4!

=(6x5x4x3x2x1 ) / ( 4x3x2x1)

= 6x5

=30

Thus the number of permutations of picking  4 pens from a total of 6 unique colored pens in the box is 30.

Learn more about permutation here:

brainly.com/question/14767366

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1 year ago
I will either mark the best or the first brainliest.
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Y is the output and x is the input. The given statement is output is 11 more than the output (x) so the function rule is y=x+11
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Armando has a baseball card that is worth $45. The value of the card is increasing at a rate of 1.5% per year. How much will the
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<span>$19705.23 this is the correct </span>answer
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Please answer this!! (In your own words.) The best answer gets brainliest!<br><br> Find the area:
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Answer:

<em>97.5 sq. ft.</em>

Step-by-step explanation:

Im presuming the question asks to find area of the shaded region.

First of all, the total figure is a rectangle. We can write an expression(in words) for the shaded area.

<em>Shaded Area = Area of Rectangle - Area of Small Triangle(White) - Area of Large Triangle(White)</em>

Now, we find respective areas.

Area of rectangle:

length * width = (5+10) * (12) = 15 * 12 = 180

Area of Small Triangle (white):

A = (1/2) * base * height = (1/2) * 5 * (12-3) = (1/2) * 5 * 9 = 22.5

Area of Large Triangle (white):

A = (1/2) * base * height = (1/2) * 10 * (12) = 60

Now, we find area of shaded region:

<em>Shaded Area = Area of Rectangle - Area of Small Triangle(White) - Area of Large Triangle(White)</em>

<em>Shaded Area = 180 - 22.5 - 60 = 97.5 sq. ft.</em>

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