Simplify. 6√20−3√8
enter your answer, in simplest radical form

➷   can be simplified to 2

Multiply 2 by 6 to get the simplified version for part 1

=

can be simplified to

Multiply 2 by 3 to get the simplified version:

=

It would be:

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Step-by-step explanation:

√8= √4√2 = 2√2

√20 = √4√5 = 2 √5

6√20−3√8 = 12√5 - 6√2

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.