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xxMikexx [17]
3 years ago
15

Marta is solving the equation S = 2πrh + 2πr2 for h. Which should be the result?

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
8 0

Answer:

\frac{S - 2\pi r^{2}}{2\pi r} =h

Step-by-step explanation:

The given equation is

S=2\pi rh+2\pi r^{2}

Which is the equation of a surface area.

Marta is solving this equation for h, that means we need to isolate that variable.

First, we move the term nex to the one containing h

S - 2\pi r^{2}=2\pi rh

Second, we move all factors which are multiplying the variable h, they must pass to the other side of the equality as divisors,

\frac{S - 2\pi r^{2}}{2\pi r} =h

Therefore, the result Marta should get is

\frac{S - 2\pi r^{2}}{2\pi r} =h

blondinia [14]3 years ago
7 0

Answer:

Step-by-step explanation:

Only the term 2πrh contains h.  Isolate this term on the right by subtracting 2πr^2 from both sides:

S - 2πr^2 = 2πrh

Now divide the left side by 2πr, obtaining:

         s - 2πr^2

h =   ------------------

             2πr

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A bag of jelly beans contains 10 red,6 green,7 yellow, and 5 orange jelly beans.What is the probability of randomly choosing a r
lilavasa [31]

Answer:

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Step-by-step explanation:

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\text{So, Probability of choosing red jelly, P(R) = }\frac{10}{28}=\frac{5}{14}\\\\\text{So, Probability of choosing orange jelly, P(O) = }\frac{5}{28}\\\\\text{Now, Probability of choosing first red , then red and then orange jelly}\\\text{on replacing each jelly after choosing, }\\\\P(R,R,O) = \frac{5}{14}\times \frac{5}{14}\times \frac{5}{28}=\frac{125}{5488}\approx 0.02

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V=basearea times 1/3 times height
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hmm, they try to make it difficult

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