Answer:
There are no like terms hence they stay the same
Step-by-step explanation:
x + (y + 9)
There are no like terms
=x+y+9
(x + y) + 9
There are no like terms
=x+y+9
Answer:
Step-by-step explanation:
It is given that in △ABC, ∠ABC=90°, BH is an altitude and AB=9 and AC=12, thus using the Pythagoras theorem in △ABC, we get
Now, From ΔABC and ΔHBC, we have
∠ABC=∠BHC(each90)
∠ACB=∠HCB (Common)
By AA similarity, ΔABC is similar to ΔHBC.
Thus, using the similarity condition, we get
Answer:
45 degrees
Step-by-step explanation:
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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I believe D). 5 is the answer. If you clearly think about it, it actually might make sense. You just count the lines pointing from up to down.
