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3 years ago

7

Please someone help meeeeeee

1 answer:

zheka24 [161]3 years ago

8 0

Answer:

can zoom the picture in i cant see it clearly

Step-by-step explanation:

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In the diagram below, assume that all points are given in rectangular coordinates. Determine the polar coordinates for each poin

Korolek [52]

Step-by-step explanation:

We have cartisean points. We are trying to find polar points.

We can find r by applying the pythagorean theorem to the x value and y values.

$r {}^{2} = {x}^{2} + {y}^{2}$

And to find theta, notice how a right triangle is created if we draw the base(the x value) and the height(y value). We also just found our r( hypotenuse) so ignore that. We know the opposite side and the adjacent side originally. so we can use the tangent function.

$\tan(x) = \frac{y}{x}$

Remeber since we are trying to find the angle measure, use inverse tan function

$\tan {}^{ - 1} ( \frac{y}{x} ) =$

Answers For 2,5

${2}^{2} + {5}^{2} = \sqrt{29} = 5.4$

So r=sqr root of 29

$\tan {}^{ - 1} ( \frac{5}{2} ) = 68$

So the answer is (sqr root of 29,68).

For -3,3

${ -3 }^{2} + {3}^{2} = \sqrt{18} = 3 \sqrt{2}$

$\tan {}^{ - 1} ( \frac{3}{ - 3} ) = - 45$

Use the identity

$\tan(x) = \tan(x + \pi)$

So that means

$\tan(x) = 135$

So our points are

(3 times sqr root of 2, 135)

For 5,-3.5

${5}^{2} + {3.5}^{2} = \sqrt{37.25}$

$\tan {}^{ - 1} ( \frac{ - 3.5}{ - 5} ) = 35$

So our points are (sqr root of 37.25, 35)

For (0,-5.4)

${0}^{2} + { - 5.4}^{2} = \sqrt{} 29.16 = 5.4$

So r=5.4

$\tan {}^{ - 1} (0) = undefined$

So our points are (5.4, undefined)

4 0

3 years ago

iogann1982 [59]

It’s the 2nd bubble, 0.664

8 0

4 years ago

Please answer all 3 if you do it right ill give brain thing I have it now!! ^^

Keith_Richards [23]

Answer:

4) between 2 and 3

5) dividing 7 pies by 3

6) 7÷3=7/3

Step-by-step explanation:

4) 15÷6=2.5

5) seven pies, all cut into 3 pieces

6) 7÷3

5 0

2 years ago

A jar contains 5 red marbles and 7 blue marbles.

N76 [4]

Yes I’m sorry I don’t know what if you w I was sleep good but I’m still not hungry I’m not hungry but I’m yo you eat my pizza and I’m y

8 0

3 years ago

Solve for x please!!!

11Alexandr11 [23.1K]

Look at the picture.

x = 180° - (43° + 87°) = 180° - 130° = 50°

4 0

3 years ago