5. If on a scale drawing 60 miles are represented by 5 inches,
then a scale of ½ inch
represents how many miles?

6 miles

Step-by-step explanation:

60 miles : 5 inches

12 miles  : 1 inch

6 miles   : 1/2 inch

whatever you do to one side of the ratio you have to do to the other.

to get from 1 to a 1/2 you divide by 2, so you do 12 divided by 2 which is 6.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)