2 years ago

I need to simplify √(5+2√2) and √(6+2√5)

1 answer:

6 0

This expression is easier than it looks like. I thought that to solve it you have for example to express the 2 via 10 * 5^-1 and stuff like that - but you can multiply and divide this expression by some factor. In our case first we multiply by conjunctive expression root(5-2root2) and the second by root(6+2root5). In first we get root16 and the second calculate.

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Number one and number two

Amanda [17]

1. sum of exterior angles = 360

so one interior angles = 180 - (360/30) = 180 - 12 = 168 degrees
sum of all the interior angles = 168*30 = 5040
B

2. H

the sum of exterior angles of all polygons is 360 degrres

4 0

3 years ago

32% of what number equals 8? First, what is 32% written as a decimal? Enter your answer in the box. 32% =

ANEK [815]

32% = 0.32

we know that 0.32 × a number = 8

we can set this number as the variable x

0.32 x = 8

÷0.32 ÷0.32

x = 8

therefore the number is 8

4 0