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FinnZ [79.3K]
3 years ago
13

Help anyone can help me do the question,I will mark brainlest.​

Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

Step-by-step explanation:

S=pi*R^2=(area of the sector)*(360/angle of AOB)

so 22/7*9^2=99*360/angle of AOB

-> AOB=140

perimeter of circle: 2*pi*R

permiter of sector : 2*pi*140/360*R+ 2R=22+9*2=40

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Answer:

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2 years ago
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What is the additive inverse of the complex number –8 + 3i?
Lady bird [3.3K]
Choices:
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</span>
5 0
3 years ago
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Can someone plsss help :)
OLga [1]
Set equal to eachother
(2x+1) = 79
Subtract 1 from both sides
2x=78
Divide 2 from both sides
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X= 39
5 0
3 years ago
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