Answer:
4 square root 2
Step-by-step explanation:
the pythagorian theorem will look like this: 2^2+b^2=6^2
simpify: 4+b^2=36
get b by itself by subtracting four from each side: b^2=32
take the square root of 32 and simplify: 4sqrt2
Answer:
the answer you seek is (B)
Step-by-step explanation:
56 miles, The car traveled m miles during the first hour and m squared miles during the second hour. The ratio m/m squared = 1/7 and cross multiplying yields m squared = 7m, so m=7. This means that the total distance traveled was 7+7squared = 56 miles
Given : The addition 21.4 + 15 + 17.17 + 4.003 by the rules for significant figures.
Solution: According to given numbers, let us count number of significant figures in each of the given numbers.
21.4 has three significant figures.
15 has two significant figures.
17.17 has four significant figures.
4.003 has four significant figures.
We have to round the final answer to the nearest tens place because 15 has only accurate to the ones place.
We can see that other numbers are accurate to the tenths, hundredths and thousandths places, respectively.
Let us add them as usually first,
21.4 + 15 + 17.17 + 4.003.
It gives 57.573.
Now, we need to round it to the ones place.
We get 58 as the final answer.
Answer:
Step-by-step explanation:
we know that
The length of a circle is equal to the circumference
where
r is the radius of the circle
In this problem we have
The length of semicircle is equal to
substitute
