2 years ago

How to figure out how to do this problem

1 answer:

5 0

The circumference should be 37.68 because area= pi *r^2. So if area=pi*36, then the radius must be 6 which makes the diameter 12 and circumference=pi*diameter and 3.14*12= 37.68. So circumference of the circle is 37.68!

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Eliminate the parameter,t, in the parametric equation, x=6cos t, and y =3 sin t

german

X = 6 cos(t)
y = 3 sin(t)

we can rewrite these equations as:

$\frac{x}{6}=cost(t) \\ \\ \frac{y}{3} =sin(t)$

Taking squares of both equations we get:

$( \frac{x}{6})^{2}=sin^{2} (t) \\ \\ 
( \frac{y}{3})^{2}=cos^{2}(t)$

Adding both the equations, we get:

$\frac{ x^{2} }{36}+ \frac{ x^{2} }{9}=sin^{2}(t)+cos^{2}(t) \\ \\ 
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3 years ago

If any person is good at algebra could you have a look at this question. There is attached picture.

Brilliant_brown [7]

Answer:

hey..

their is no picture attached

I would like to help u if u would post another question with attached pic

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3 years ago

Solve the following math problems, round appropriately according to sig. fig. rules. 84.9 • 64

alina1380 [7]

Answer:

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Step-by-step explanation:

5 0

3 years ago

Simplify the expression z2-z(z+3)+3z

Maslowich

<span>z2-z(z+3)+3z
=> z2 - z2 - 3z + 3z
=> 0
we can cancel the like terms if they have different signs ..

Hope it helps !!</span>

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3 years ago

Steven is making goody bags for his son's birthday party. He has 18 Snickers, 27 Milky Ways, and 36 Butterfingers. If he wants t

zimovet [89]

Answer:

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Step-by-step explanation:

bc im confident brainliest plss

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3 years ago