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AfilCa [17]
3 years ago
10

Write the polar equation as a set of parametric equations. r=3sinθ Show all work.

Mathematics
1 answer:
AVprozaik [17]3 years ago
4 0

Answer:

x=t

y=\pm\sqrt{3t-t^2}

Step-by-step explanation:

The given polar equation is;

r=3\sin \theta

We multiply  both sides by r

r^2=3r\sin \theta

The corresponding rectangular equation is

y^2+x^2=3x

y^2=3x-x^2

y=\sqrt{3x-x^2}

Let x=t,

Then;

y=\pm \sqrt{3t-t^2}

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mario62 [17]
So your question is how pieces are there?? If it is:
Its 2 pieces plus a 0.36m leftover
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3 years ago
Pls answerrr (i will mark as brainlist)
Firdavs [7]

Answer:

Hope the below answer is easy to understand

Step-by-step explanation:

1)  Given the four angles of a quadrilateral are in the ratio 1:2:3:4

Then Let the angles are x,2x,3x and 4x

We know that total of  four angles of a quadrilateral =360 °

∴x+2x+3x+4x=360 °

⇒10x=360 °

⇒x=36  °

hence the measures of  angles are 36  ° ,72  ° ,108 °  ,144  °

2) Measure of interior angle of a polygon= 180°.

Sides of the polygon = 7 sides

Therefore,

Interior angle of the polygon having 7 sides = 180/7 = 25 5⁄7°

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2 years ago
Plz hurry will mark brainliest
svetoff [14.1K]

Answer:

No they don't form a proportion

Step-by-step explanation:

Their denominatiors do not share a common multiple, therefore they can not form a proportion.

5 0
3 years ago
On Monday you sent x number of text messages. On Tuesday you sent twice as many. On Wednesday you sent 12 more texts than you se
kykrilka [37]

Answer: Expression represents the number of text messages you sent on Tuesday = 2x

Expression represents the number of text messages you sent on Wednesday = 12+2x

Expression represents the number of text messages you sent on Thursday = x+6

Step-by-step explanation:

Given:

Number of text messages sent on Monday = x

On Tuesday, Number of text messages sent  = 2 (Number of messages sent on Monday)

= 2 x

On Wednesday, Number of text messages sent  = 12+ (Number of messages sent on Tuesday)

= 12 +2x

On Thursday, Number of text messages sent  = \dfrac12(2x+12)

= x+6

Expression represents the number of text messages you sent on Tuesday = 2x

Expression represents the number of text messages you sent on Wednesday = 12+2x

Expression represents the number of text messages you sent on Thursday = x+6

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3 years ago
Read 2 more answers
The variance of a stock's returns can be calculated as the:
Tamiku [17]

Answer:

The correct option is b.

Step-by-step explanation:

The formula for standard deviation is

\sigma^2=\frac{\sum {(x-\overline{x})^2}}{n}

where, \overline{x} is mean of the data and n is number of observation.

The variance of a stock's returns can be calculated by the above formula.

Variance of stock's returns is the average value of squared deviations from the mean.

Therefore the correct option is b.

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3 years ago
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