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Naddika [18.5K]
3 years ago
11

What is the justification for step 1 in the solution process?

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0
It’s the subtraction property of equality because you’re subtracting 15 from both sides
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How are the two angles below related? Drawing not to scale.<br><br><br> Drawing is not to scale.
Phoenix [80]

we know that

Two angles are supplementary if their sum is equal to 180 degrees

in this problem we have

Angle\ 1=45\°

Angle\ 2=135\°

so

Angle\ 1+Angle\ 2=180\°

therefore

<u>the answer is</u>

The two angles are supplementary

5 0
4 years ago
Read 2 more answers
Use deductive reasoning to show that P=R
qaws [65]

Answer:

∠P ≅ ∠R

Step-by-step explanation:

We can see here two triangles , ∆ PQS and ∆ RQS.

<u>To </u><u>Prove</u><u> </u><u>:</u><u>-</u><u> </u>

  • ∠P ≅ ∠R

We can prove the given two triangles congruent then we can easily prove it out.

<u>In </u><u>∆</u><u> </u><u>PQS </u><u>and </u><u>∆</u><u> </u><u>RQS </u>

  • PQ = QR ( given )
  • QS = QS ( common)
  • ∠PQS = ∠ RQS .

Therefore by SAS congruence condition , both triangles are congruent .

Hence ,

  • ∠P ≅ ∠R ( by corresponding parts of congruent ∆s)

<h3>Hence Proved ! </h3>
6 0
4 years ago
How many solutions exist for the given equation? 12x + 1 = 3(4x + 1) – 2
lubasha [3.4K]

Answer:

3=3 infinity many solutions

Step-by-step explanation:

12x+1=3(4x+1)-1

3x4x   3x1

12x+1=12x+3-2

   +2            +2

12x+3=12x+3

-12x      -12x

3=3

6 0
3 years ago
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sukhopar [10]
The question is a bit confusing, but I'm assuming you are adding them all up, so the total sum would be 60 items :)
7 0
3 years ago
If a = 9 and c = 20, the measure of ∠B = ____ degrees (to the nearest tenth).
Nina [5.8K]
You are going to need to include a picture so we can see the triangle.
4 0
4 years ago
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