Answer:
2b -a
a-2c
Step-by-step explanation:
a = b+c
We want to find b-c
Solve the first equation for b
b = a-c
and for c
c = a-b
b-c in terms of b and a
using c = a-b
b - (a-b)
Distribute the minus sign
b - a +b
Combine like terms
2b -a
b-c in terms of c and a
using b = a-c
(a-c) -c
a-c -c
Combine like terms
a-2c
I think it's $16.432 but I'm not sure.
A is the answer you seek
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Amber did wrong at the second and third step : She completely simplify both sides but she has to minus 3.5 twice on the left side in order to do so. But instead, she just make them gone.
Work :
Based on the information given, it can be seen that Triangles AOC and BOD are congruent by SAS. Therefore, AC = BD.
<h3>What is a distance formula for a triangle?</h3>
It should be noted that the lengths can be found by using the <u>distance formula</u>. This is used to find the distance between two points. In this case, rewrite cos(-β) and sin(-β) using the even and odd identities before squaring both sides of the equation.
Lastly, simplifying the resulting expressions involving cosine and sine of α, β, and α + β requires using the <u>Pythagoras identity.</u>
Learn more about triangles on:
brainly.com/question/17335144
