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Nataly [62]
3 years ago
10

What is the length of QR

Mathematics
2 answers:
raketka [301]3 years ago
8 0

Answer:

8

Step-by-step explanation:

Set 3n-1=5n-7.

Solve.

n=3.

Plug in 3 to 5n-7.

QR=8

Rus_ich [418]3 years ago
8 0

Answer:

QR=8

Step-by-step explanation:

so using the fact that the two triangles are congruent, we can determine:

5n-7=3n-1

5n-6=3n

2n-6=0

n=3

so we replace all n in 5n-7 with three

5x3-7

15-7

8

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10 / 38
allsm [11]
Use photo math , I’m sure it will help
5 0
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If someone can please do the check for me, please.
Kaylis [27]

Whats the question theres nothing attached

3 0
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Help,no links and please don’t guess. Will give the brainliest . It is a 4 grade question
Alborosie

Answer:

.7 or 7/10

Step-by-step explanation:

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5 0
3 years ago
What is the measure of each exterior angle of the right triangle?
spayn [35]
I think x=90°, and z=136°
4 0
3 years ago
Read 2 more answers
Which angle measure below is not a possible measure of an exterior angle of a regular polygon?
elena-14-01-66 [18.8K]
All exterior angles of a regular polygon would equal 360 degrees. SO... based on that, one exterior angle would have to multiplied by whatever sum (whole number) to equal 360 degrees to find the number of sides. Here you divide 360 by one of the exterior angles, if it does not equal a whole number then it would be inaccurate.
In this case only 54 degrees would not fit into one of the exterior angles.
8 0
3 years ago
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