Answer:
19-12=7, so 4-7=-3, so b is equal to 19
There is 1,000 millimeters in mm
Given:
Width of a rectangle = 
Length of the rectangle = 
To find:
The ratio of the width to the length.
Solution:
We need to find the ratio of the width to the length.

Putting the given values, we get





Therefore, the ratio of the width to the length is 1:3.
Combining like terms is pretty simple. First, you would identify which terms are similar to what terms. For example, you can't combine two terms that aren't similar like 2x and 3y. It would have to be 2x and 3x to combine. Next, be sure to add/multiply/subtract/divide/etc. the terms. For example, if you had the problem 2x + 4x + 3y, you would combine the "x" terms and the resultant problem would be 6x + 3y. Hope this helped :)
14.87
Step-by-step explanation:
use the Pythagorean theorem
a^2+b^2=c^2
C being the longest side of the triangle
14^2+5^2=C^2
196+25=C^2
221=C^
find the square root of 221
C=14.866
rounded to nearest tenth
C=14.87