3 years ago

What is the are of the polygon below!help please!

Mathematics

1 answer:

Naya [18.7K]3 years ago

6 0

Answer:

Area= 525

Step-by-step explanation:

14x9=126

3x7=21

14x27=378

126+21+378=525

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Each of the 23 students in ms Evans class raised $45 for the school by selling coupon books. How much money did the class raise.

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4 years ago

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Evaluate 6 · 3 ÷ √9 - 1. plz help, will mark brainliest A. 2 B. 3 C. 5 D. 6

uysha [10]

Answer:

c.5

Step-by-step explanation:

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3 years ago

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Consider the following.x = t − 2 sin(t), y = 1 − 2 cos(t), 0 ≤ t ≤ 8πSet up an integral that represents the length of the curve.

sweet [91]

The length of the parametric curve (call it <em>C </em>) is given by

$\displaystyle\int_C\mathrm ds=\int_0^{8\pi}\sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2}\,\mathrm dt$

We have

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$y=1-2\cos t\implies\dfrac{\mathrm dy}{\mathrm dt}=2\sin t$

Now,

$\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2=5-4\cos t$

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$\displaystyle\int_0^{8\pi}\sqrt{5-4\cos t}\,\mathrm dt$

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3 years ago

The ratio of adults to children is 7:3 and 370 people attend .How many are children?

nlexa [21]

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3 years ago

Anastasy [175]

Answer:

$ 558k

Step-by-step explanation:

the condition 'the house was sold for 124% of its purchase price' means Initial_price*1.24, where Initial_price is $450k:

$450000*1.24=$558000.

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2 years ago