Why dA = r dr d(theta)?

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Answer 1
Answer: for dA in  a circle, the r  value varies ,  but its area is still rdrd(theta) but r (and theta) differs depending where the region is
and the regions could be any regions as long as it is a continuous region

hope this helps
 

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A pest control company sprays insecticide around the perimeter of a 460 ft by 320 ft building. If the spray costs $0.12 per foot, how much did the job cost to the nearestdollar?
OA. 5187
OB. 51.766
OC. $147
OD. 594

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Answer:

$187.20

Step-by-step explanation:

P=2x+2y

P=2(460')+2(320')

P=920'+640'

P=1560'

Cost is $0.12 per foot we have 1560 feet

1560 X 0.12 = $187.20

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answer anything idc
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Answer:

정말 고맙습니다!!!!!

Gracias por regalus puntos!!

\infty  \infty  \infty  \infty  \infty

What’s 9 + 10 = 21
You skjsbsbwnabsbwjw die

In the figure below, m < 1 = 26° and m < 2 = 28°
Find m< WXZ.

m

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