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makvit [3.9K]
3 years ago
14

The formula for the surface area of a sphere is A=4pi r*2, where r is the length of the radius. Find the surface area of the sph

ere with a radius of 14. Use 22/7 as pi
Mathematics
1 answer:
g100num [7]3 years ago
8 0

Answer:

Step-by-step explanation:

area=4×22/7×14²=4×22×28=2464 units²

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Step-by-step explanation:

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Answer:

Option B, - 7 + 12 = 5

Step-by-step explanation:

As you can see, the up line starts from the point 0 and it goes back by seven (- 7). Then from negative seven, it took 12 steps forward to zoom to positive 5 (+ 5). So + 5 is the last result of the process. It took 12 steps forward.

So with these statements kept in mind. Look at the options that would be described by these.

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Answer:

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Step-by-step explanation:

The question relates to dividing a fraction by proper and another fraction

The given expression is presented as follows;

2\dfrac{1}{3}  \div \left ( -3\dfrac{2}{3} \right )

We rearrange the fractions as improper  fractions for easier division as follows;

2\dfrac{1}{3}  = \dfrac{7}{3}

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Therefore, we have;

2\dfrac{1}{3}  \div \left ( -3\dfrac{2}{3} \right ) = \dfrac{7}{3} \div \left (-\dfrac{11}{3} \right ) = \dfrac{7}{3} \times \left (\dfrac{1}{-\dfrac{11}{3} } \right ) = \dfrac{7}{3} \div \left (-\dfrac{3}{11} \right ) =-\dfrac{7}{11}

\therefore 2\dfrac{1}{3}  \div \left ( -3\dfrac{2}{3} \right ) = -\dfrac{7}{11}

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