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zysi [14]
3 years ago
6

☺️☺️can anyone do a step by step explanation. You dont have too but if possible. Thanks

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0
QR and QS are perpendicular bisectors of the isosceles triangle XYX
so QR= QS
1/2 x + 2 = x - 10
1/2 x - x = - 10 - 2
-1/2x = - 12
      x = (-12) * (-2/1)
      x = 24

QS = 24 - 10
QS = 14

Answer
C . 14
goldenfox [79]3 years ago
5 0
Since the triangle above is isosceles, its legs are congruent. If RS was drawn, we can see visually how QR and QS are congruent also. QR and QS have the same slope, so they would travel the same distance before intersecting. Therefore, we can set up an equation where the value of QR equals the value of QS.

QR = QS
1/2x + 2 = x - 10
multiply both sides to eliminate the denominator
x + 4 = 2x - 20
24 = x
subtract x from both sides to get all "x" terms on one side
add 20 to both sides to get all non-variable terms on one side.
QS = 24 - 10
Substitute the value of x back into the value of QS
QS = 14
Combine all like terms.

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Answer:

Orinal number of cats=  171

Step-by-step explanation:

Giving the following information:

Decrease in population= 30%

Current population= 120

<u>To calculate the original number of cats, we need to use the following formula:</u>

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3 years ago
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3 years ago
Read 2 more answers
Which of the following are exterior angles? Check all that apply.
Marina86 [1]

Answer:

A

C

D

E

Step-by-step explanation:

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3 years ago
Solve the system algebraically. Check your work.
Luden [163]

answer.

Answer:

x=2 and y=0 is the required result.

Step-by-step explanation:

We have been given system of equations:

5x+2y=105x+2y=10     (1)

And 3x+2y=63x+2y=6      (2)

We will use elimination method:

Multiply 1st equation by 3 and 2nd equation by 5 we get:

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Now subtract  (4) from (3) we get:

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Hence, x=2 and y=0

8 0
3 years ago
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