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Vanyuwa [196]
3 years ago
8

–8z – 14z i just need an answer

Mathematics
2 answers:
lilavasa [31]3 years ago
7 0

Answer:

-22z

Step-by-step explanation:

-8z - 14z = -22z // Addition ( - - = +)

Likurg_2 [28]3 years ago
5 0
The answer is -22z I hope this helps
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Write the polar equation in rectangular form.
zhuklara [117]

Answer:

Step-by-step explanation:

The identities you need here are:

r=\sqrt{x^2+y^2}  and   r^2=x^2+y^2

You also need to know that

x = rcosθ  and

y = rsinθ

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We have

r = 6 sin θ

Let's first multiply both sides by r (you'll always begin these this way; you'll see why in a second):

r² = 6r sin θ

Now let's replace r² with what it's equal to:

x² + y² = 6r sin θ

Now let's replace r sin θ with what it's equal to:

x² + y² = 6y

That looks like the beginnings of a circle.  Let's get everything on one side because I have a feeling we will be completing the square on this:

x^2+y^2-6y=0

Complete the square on the y-terms by taking half its linear term, squaring it and adding it to both sides.

The y linear term is 6.  Half of 6 is 3, and 3 squared is 9, so we add 9 in on both sides:

x^2+(y^2-6y+9)=9

In the process of completing the square, we created within that set of parenthesis a perfect square binomial:

x^2+(y-3)^2=9

And there's your circle!  Third choice down is the one you want.

Fun, huh?

5 0
3 years ago
What is the area of the figure shown below?
mr_godi [17]
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kvv77 [185]

Answer:

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answer to the equation would be -17,200

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Step-by-step explanation:

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