What is the surface area of a sphere with a radius of 30m?
1 answer:
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<h3>Hey there! </h3><h3>The second "
" is has invisible 
</h3><h3>Here, this is what I meant: 
</h3><h3>So, now your equation looks like this: 
</h3><h3>Add the exponents: 
</h3><h3>Therefore your answer should be: 
</h3><h3>(Note: there's many ways to solve these types of equations, I just gave you the basic method) </h3><h3 /><h3>Good luck on your assignment and enjoy your day! </h3><h3>~
</h3>
Explanation:
This can be explained by thinking numbers on the number line as:
Lets take we have to multiply a positive number (say, 2) with a negative number say (-3)
<u>2×(-3)</u>
Suppose someone is standing at 0 on the number line and to go to cover -3 , the person moves 3 units in the left hand side. Since, we have to compute for 2×(-3), The person has to cover the same distance twice. At last, he will be standing at -6, which is a negative number.
A image is shown below to represent the same.
<u>Thus, a positive times a negative is a negative number.</u>
