3 years ago

HELPPP ASAP WILL MARK BRAINLEST!!!

Mathematics

1 answer:

Pepsi [2]3 years ago

5 0

Answer:

Step-by-step explanation:

answer 1- 4

answer 2- 2

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Convert x2 + y2 -4x = 0 to polar form.

Bingel [31]

Answer:

$r(r-4\cos \theta)=0$

Step-by-step explanation:

We are given the following equation:

$x^2 + y^2 -4x = 0$

We have to convert it into polar form.

We put

$x = r \cos \theta\\y = r\sin \theta$

Putting values, we get:

$x^2 + y^2 -4x = 0\\(r\cos \theta)^2 + (r\sin \theta)^2 - 4(r\cos \theta) = 0\\r^2(\cos^2 \theta + \sin^2 \theta) - 4r\cos \theta = 0\\r^2 - 4r\cos \theta = 0\\r(r-4\cos \theta)=0$

is the required polar form.

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3 years ago

How to solve<br> ([120-2+(46-15)+2]-(9+4)

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Answer:138

Step-by-step explanation:

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pretty sure its growth

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Reptile [31]

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6.9

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3 years ago

Juanita is the self-employed owner of Juanita's Linens. Her estimated annual earnings are $73,040 and she expects to pay 27% of

adell [148]

Answer:

$7724

Step-by-step explanation:

Her estimated quarterly income is $73,040/4 = $18,260.

Her estimated tax rate is ...

27% + 12.4% + 2.9% = 42.3%

This tax rate applied to her estimated earnings gives an estimated quarterly tax of ...

$18,260 × 0.423 = $7723.98

≈ $7724 . . . . . taxes are rounded to the nearest dollar

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3 years ago