Of the 16 small intervals indicated from 0 to 1 inch, the ant spans 14 of them, so
How is 7/8 equal to 0.875?
Since 125(8)=1000 and 125(7)=875 we know
11) A map of North Carolina is scaled so that 3 inches represents 93 miles. How far apart are Raleigh
1 answer:
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Answer:
D. 2(√{x} + √{x - 2})
Step-by-step explanation:
As hinted in the question, we have to simplify the denominator.
To understand it easier, let's imagine we have x - y in the denominator. If we multiply it with x + y we'll get x² - y², right? Check the next line:
(x - y) (x + y) = x² + xy -xy - y² = x² - y²
If we have the square of those nasty square roots, it will be much simpler to deal with. So, let's multiply the initial fraction using x+y, but with the real values:
Then we simplify:
Answer is D. 2(√{x} + √{x - 2})