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madisonmaruhnich94
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Find the surface area of the sphere to the nearest square unit.
hold on, i have to draw it
 2 years ago
 2 years ago
madisonmaruhnich94 Group Title
Find the surface area of the sphere to the nearest square unit. hold on, i have to draw it
 2 years ago
 2 years ago

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madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
dw:1347568958290:dw
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
\[\huge SA = 4\pi r^2\] will that help?
 2 years ago

Doman Group TitleBest ResponseYou've already chosen the best response.0
just make sure ur using the radius not the diameter
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
no it doesn't help/: A. 13 in.2 B. 50 in.2 C. 6 in.2 D. 3 in.2
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
how do i find the answer
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
what is your radius in this problem? do you know?
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
2?
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
no. that is the diameter. to get the radius, divide that by 2
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
so 1?
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
right. so substitute that to the equation i gave you
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
i feel like an idiot, idk what to do
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
r = 1 right? because it's the radius`
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
yes
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
would it be 3 in^2
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
so replace r with 1 in the equation i wrote...what do you get?
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
13 in^2
 2 years ago

madisonmaruhnich94 Group TitleBest ResponseYou've already chosen the best response.0
?
 2 years ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
will you elaborate how you got that?
 2 years ago
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