Shape A has a perimeter of 36 feet and on of the side lengths is 12
1 answer:
The perimeter of a shape is the sum of its side lengths
The corresponding side length for shape B is 20 feet
<h3>How to determine the length</h3>The length-perimeter ratio is given as:
Ratio = Length : Perimeter
For both shapes, we have:
12 : 36 = Length : 60
Express as fraction
Multiply both sides by 60
Hence, the corresponding side length for shape B is 20 feet
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Answer:
Step-by-step explanation:
If the roots are 1 + 5i and 1 - 5i, then you need the factors that result from those roots. They are (x - 1 + 5i) and (x - 1 - 5i). Now what you do with those is FOIL them out. Doing that gives you the following:
(what a mess, huh?)
The good thing is that several of those terms cancel each other out. +5ix cancels out the -5ix; -5i cancels out the 5i; and the 2 -x terms combine to -2x. That leaves you with:
Obviously you're in the section in math that deals with complex (imaginary) numbers so you should know that i-squared is equal to -1. Making that replacement:
a = 1, b = -2, c = 25