Answer:
Points ABC and points OBC form two separate triangles. Triangle ABC is made up of angles BAC, ABC, ACB, while triangle OBC is made up of angles BOC, OBC, OCB. Since interior angles of triangles add up to 180 degrees, m<BAC + m<ABC + m<ACB = 180 and m<BOC + m<OBC + m<OCB = 180. 180 is equal to 180, so m<BAC + m<ABC + m<ACB = m<BOC + m<OBC + m<OCB.
Since OB bisects <ABC and OC bisects <ACB, m<ABO = m<OBC and m<ACO = m<OCB. We can also say that m<ABC = 2m<ABO and m<ACB = 2m<ACO. Substitute and simplify the equation.
m<BAC + m<ABC + m<ACB = m<BOC + m<OBC + m<OCB
m<BAC + 2m<ABO + 2m<ACO = m<BOC + m<ABO + m<ACO
m<ABO + m<ACO = m<BOC - m<BAC
Okay, lets start with number 1.
is also equal to (x+3)(x+3)(x+3)
If you take the first two ones and multiple them out it ends up with 
or also know as 
You see to multiply them you take the first number in the first group of parenthesis and use the distributive property on the second equation, then you do the same this but with the second number in the first equation.
So once you have 
you multiply it with your remaining (x + 3) using the distributive property to get 
I hope this helps you get the answers for the other two.
Thanks for the question!
When you multiply or divide both sides of an inequality, you flip the sign. "Flip," meaning greater than becomes less than and less that becomes greater than.
Hope this helps!
Answer:
168
Step-by-step explanation:
7*-4=-28
-28*-6=168
Since the equation is a true one, then it is an identity.
<h3>How to illustrate the information?</h3>
It should be noted that the information given is represented as 9(a−4)+3(2a+5)=7(3a−4)−6a+7.
After using the distributive law, the value that will be gotten will be:
15a - 21 = 15a - 21.
Therefore since the equation is a true one, then it is an identity.
Learn more about equations on:
brainly.com/question/2972832
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