Someone help me quicklyyy

tge answer might be 12pi r^2?

200π =628.32 (to 2 d.p.)

Step-by-step explanation:

To find the surface area of the whole sphere the equation is 4πr^2 , you would substitute 10 in as the radius which gives you 400π. Since this is half a sphere, you would half this and get 200π.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

don't give

take it once

try and try and you will not

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