Identity, <span>For example, x + x = 2x is </span>true for every value<span> of x.</span>
1501 / 200
this is what i looked up an got
Answer:
5.4
Step-by-step explanation:
To find the distance between each pair of points, we use the distance formula, which is:
d = 
So we have

When we plug in the values into the formula we get:
d = 
d = 
You can do 15-5=10 and then you have 3 left to subtract. Which means 10-3=7
Letter D
1-sin^2(x) = cos^2(x)
= sin^2(x)/cos^2(x)
= tan^2(x)