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Aleks [24]
2 years ago
12

Can someone help me please​

Mathematics
1 answer:
OleMash [197]2 years ago
4 0

Answer:

<h3>\boxed{ \bold{ \huge{ \boxed{ \sf{ {12.56 \:  {mm}^{2} }}}}}}</h3>

Step-by-step explanation:

Given,

Radius ( r ) = 2 mm

pi ( π ) = 3.14

<u>Finding </u><u>the </u><u>area </u><u>of </u><u>circle </u><u>having </u><u>radius </u><u>of </u><u>2</u><u> </u><u>mm</u>

Area of circle \sf{ = \pi \:  {r}^{2} }

plug the values

⇒\sf{3.14 \times  {2}^{2} }

Evaluate the power

⇒\sf{3.14  \times 4}

Multiply the numbers

⇒\sf{12.56 \:  {mm}^{2} }

Hope I helped!

Best regards!!

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<span>20-9x=11
-9x=11-20
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x= -9/(-9)
x=1


4(2x+1)=8
2x+1=8/4
2x+1=2
2x=2-1
2x=1
x=1/2
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5(2x+5)=-15
2x+5= -15/5
2x+5= -3
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x= -8/2
x=-4

3(8x+1)=-21
8x+1= -21/3
8x+1= -7
8x= -7-1
8x =-8
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x= -1
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