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hodyreva [135]
3 years ago
11

Find the central angle of a sector of a circle if the area of the sector and the area of the remaining part of the circle are in

the proportion 4 : 5 ( with explanation )
Mathematics
1 answer:
andre [41]3 years ago
8 0

Answer:

288

Step-by-step explanation:

360/5 = 72

72x4 = 288

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Answer:

(2A /h) - b1 = b2

Step-by-step explanation:

A = 1/2 h ( b1 + b2)

Multiply each side by 2

2A = 2*1/2 h ( b1 + b2)

2A =  h ( b1 + b2)

Divide each side by h

2A/h= h/h ( b1 + b2)

2A/h=  b1 + b2

Subtract b1 from each side

2A /h - b1 = b2

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Step-by-step explanation:

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2 years ago
Find the solution to the equation shown below.<br><br> –3.4(x – 2) = 9.8 – 4x
Naddika [18.5K]

Answer:

X= 5

Explanation (Steps):

<u>Step 1: Simplify both sides of the equation.</u>

−3.4(x−2)=9.8−4x

(−3.4)(x)+(−3.4)(−2)=9.8+−4x(Distribute)

−3.4x+6.8=9.8+−4x

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−3.4x+6.8+4x=−4x+9.8+4x

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<u>Step 3: Subtract 6.8 from both sides.</u>

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3 years ago
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Answer:wxample:

Step-by-step explanation:each of the parts into which something is or may be divided.

"a large segment of the local population" · [more]

synonyms:

piece · part · bit · section · chunk · division · portion · slice · fragment · [more]

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3 years ago
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