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Amiraneli [1.4K]

4 years ago

10

In which quadrant does the point (4,13) lie

1 answer:

Semenov [28]4 years ago

5 0

1st quadrant hope this helps!

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If C is the line segment from 7 3 to 0 0 find the value of the line integral C 4y2i xj dr

saul85 [17]

Parameterize $C$ by

$\mathbf r(t)=(x(t),y(t))=(1-t)(7,3)+t(0,0)=(7-7t,3-3t)$

where $0\le t\le1$ . Then

$\mathrm d\mathbf r=(-7\,\mathbf i-3\,\mathbf j)\,\mathrm dt$

and the line integral is equivalent to

$\displaystyle\int_C(4y^2\,\mathbf i+x\,\mathbf j)\cdot\mathrm d\mathbf r=\int_0^1(4(3-3t)^2\,\mathbf i+(7-7t)\,\mathbf j)\cdot(-7\,\mathbf i-3\,\mathbf j)\,\mathrm dt$
$\displaystyle=\int_0^1(-252t^2+525t-273)\,\mathrm dt=-\dfrac{189}2$

7 0

3 years ago

The length of a boat is 10.8 meters. Bodies buy a scale model of the boat.the scale of the model is 1:18

otez555 [7]

Answer:

Step-by-step explanation:

1/18 x 10.8 = 0.6 meters

The model of the boats' length is 0.6 meters.

3 0

3 years ago

Plz help. As soon as you can!

Vadim26 [7]

Combine like terms on each problem:)) heres an example to help

7 0

3 years ago

Why does sin30° equal 1/2?

gtnhenbr [62]

Step-by-step explanation:

it's easy to prove in any right triangle with a 30° angle, the side opposite to that angle is half the hypotenuse. CA (1/2)BC, CA/BC=1/2

6 0

3 years ago

Read 2 more answers

A fruit punch recipe calls for 1 gallon of punch syrup and 4 gallons of water to make 5 gallons of punch. How much water is need

worty [1.4K]

Answer:

12 gallon of water

Step-by-step explanation:

Fruit punch recipe = 5 gallons of punch

1 gallon of punch = 4 gallons of water

15 gallon of punch=15/5 =3 gallon of punch

1 gallon of punch = 3*4 = 12 gallon of water

6 0

3 years ago