Say to yourself - which whole numbers does the square root of 28 lie between.
Well 5 x 5 = 25 and 6 x 6 = 36. So it lies between 5 and 6 and because 28 is a little closer to 25 than it is to 36, we should guess a number that is less than 5.5.
It doesn't matter whether I chose 5.4, 5.3, 5.2 or 5.1 but my best guess would be about 5.2 or 5.3. I already know which is the better of the two having used a calculator. But instead I am going pretend I don't have one handy and I will use 5.2
Now I will divide 28 by 5.2 28/5.2=5.38 rounded to the nearest hundredth.
Now I will find the average of my divisor (5.2) and my answer 5.38
(5.2+5.38)/2 = 5.29 I will use that number (5.29) as my new divisor
28/5.29 = 5.293 rounded. I already have enough information to round the square root of 28 to the nearest tenth. It will be 5.3 since the 9 is large enough
to round the 2 to a 3. 5.3 is the answer.
We could continue to average the answer and the divisor and use the new number to round the square root of 28 to the nearest 100th, 1000th and so on, but because the square root of 28 is irrational, we will never get an exact answer. There is no number times itself that equals 28.
Answer:
the answer is the option B
Step-by-step explanation:
we know that
The circumference of a circle is equal to
In this problem we have
substitute the values
Where’s the shape, you didn’t add anything
The expression log₆(3/50) = x and the similar expression cannot be solved without a calculator or logarithm table
<h3>How to solve logarithm without calculator?</h3>
There are three ways to solve a logarithm expression
- Using calculator
- Using the logarithm table
- Logarithm rules
If a logarithmic expression cannot be solved by logarithm rules, then one has to apply a calculator or logarithm table to solve such expression
The above means that the expression log₆(3/50) = x and the likes cannot be solved without a calculator or logarithm table
Read more about logarithmic expressions at:
brainly.com/question/10727370
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Answer: 31, 932.74
Step-by-step explanation:
The population of the small town = 39,668
Yearly rate of decline = 1.5%
Therefore, to calculate 1.5% of 39,668 = 1.5 x 39,668
------------------
100
= 595.02
So, the population is declining by 595.02 on yearly basis.
To ascertain what will the population would have declined to in the next 13 years,
We multiply , = 595.02 x 13
=7,735.26
Now population in 13 years = 39,668 - 7,735.26
= 31,932.74
