60 algebra 2 questıons Solve 3x – y + 2z = 6

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Mathematics

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QUESTION 1

  1. Solve 3x – y + 2z = 6
    -x + y = 2
    x – 2z = –5

2 points

QUESTION 2

  1. Solve 2x + y + z = 5
    4x – 2y – z = 0
    3x – y + 2z = 6

2 points

QUESTION 3

  1. Solve 5x + 2y – 3z = 4
    -2x – 4y + z = -8
    x + y + z = 2

2 points

QUESTION 4

  1. Solve 4x + y + z = 1
    8x – 4y – 7z = 2
    –5y – 9z = –33

2 points

QUESTION 5

  1. Solve 2x + y – z = 3
    4x – y + 4z = 0
    -3y + 2z = 6

2 points

QUESTION 6

  1. Solve 4x + y – 2z = 0
    2x – 3y + 3z = 9
    -6x – 2y + z = 0

2 points

QUESTION 7

  1. Solve x + 3y + 4z = 0
    x – 2z = 8
    y + z = 3

2 points

QUESTION 8

  1. Twice the first number is eleven more than the sum of the other two numbers. The sum of twice the first number and three times the third number is one more than the second number. The second number is equal to the sum of the first number and the third number. Find the three numbers.

2 points

QUESTION 9

  1. The sum of the length, width, and height of a rectangular box is 16 cm, the width is twice the height, and twice the length exceeds the sum of the width and height by 5. Find the length, width, and height of the box.

2 points

QUESTION 10

  1. In a certain triangle, the angle of the greatest measure measures 75 degrees more than the angle of the least measure. If one-third the sum of the degree measures of the smallest and the largest angles is equal to the degree measure of the remaining angle, what is the degree measure of each angle of the triangle?

2 points

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QUESTION 1

  1. If a parallelogram is a rhombus then the diagonals are congruent.

2 points

QUESTION 2

  1. ABCD is a parallelogram. What is true about Imported Asset and Imported AssetImported Asset

2 points

QUESTION 3

  1. What property is true for a rectangle, a square and a rhombus?

2 points

QUESTION 4

  1. In a rectangle, the opposite sides are congruent.

2 points

QUESTION 5

  1. The opposite sides of a parallelogram are _________.

2 points

QUESTION 6

  1. The following is a rhombus, therefore Imported Asset

2 points

QUESTION 7

  1. If a parallelogram is a rectangle then the diagonals are congruent.

2 points

QUESTION 8

  1. Figure ABCD is a square. Angle B measures 542176.GIF . Find the value of x.

2 points

QUESTION 9

  1. YWXZ is a rhombus with diagonals that intersect at point S. Side WX measures 4a + 12. Side XZ measures 6a. Find the value of a.Imported Asset

2 points

QUESTION 10

  1. KLMN is a kite. If angle MLK measures Imported Asset Angle MNK measures Imported Asset Find the value of x.Imported Asset

2 points

QUESTION 11

  1. QRST is a parallelogram. Find x and y.Imported Asset

2 points

QUESTION 12

  1. Figure ABCD is a square. Side AB measures 10x – 7. Side BC measures 2x + 52. Find the value of x.

2 points

QUESTION 13

  1. Figure ABCD is a kite with diagonals which cross at point P. The angle APB measures 542193.GIF . Find the value of x.

2 points

QUESTION 14

  1. Triangle ABC is congruent to triangle DFE. Find x.Imported Asset

2 points

QUESTION 15

  1. Triangle ABC is congruent to triangle XYZ. Angle A measures 145233.GIF , angle B measures 144930.GIF and angle X measures 145024.GIF . Find the value of x.

2 points

QUESTION 16

  1. Triangle RSV is congruent to triangle TVS. Find x.Imported Asset

2 points

QUESTION 17

  1. Triangle DEF is congruent to triangle GHI. Side DE measures 52. Side GH measures 10x – 13. Side HI measures 12x – 16. Find the value of x.

2 points

QUESTION 18

  1. Triangle DEF is congruent to triangle GHI. Side EF measures 52. Side GH measures 10x – 13. Side HI measures 12x – 16. Find the value of x.

2 points

QUESTION 19

  1. Triangle PQR is congruent to triangle STU. Side PQ measures 3x + 15. Side QR measures 5x – 5. Side TU measures 60. Find the value of x.

2 points

QUESTION 20

  1. Triangles QVS and RTS are similar. Find side VS.146006.GIF

2 points

QUESTION 21

  1. Triangle DEF is similar to triangle PQR. Side DE measures 3, side EF measures 7 and side FD measures 9. Side PQ measures 5x – 25 and side RP measures 10x – 5. Find the value of x.

2 points

QUESTION 22

  1. Triangle ABC is similar to triangle XYZ. Side AB measures 2, side BC measures x + 5, side CA measures x + 7, side XY measures 4 and side YZ measures 5x – 5. Find the value of x.

2 points

QUESTION 23

  1. Triangle ABC is similar to triangle XYZ. Side AB measures 2, side BC measures x + 5, side CA measures x + 7, side XY measures 4 and side ZX measures 4x – 2. Find the value of x.

2 points

QUESTION 24

  1. Triangles QVS and RTS are similar. Find side VS.Imported Asset

2 points

QUESTION 25

  1. Triangles MOP and MNQ are similar. Find x.Imported Asset

2 points

QUESTION 26

  1. Find x.Imported Asset

2 points

QUESTION 27

  1. Point C is the center of the circle. Angle ACB measures Imported Asset . What is the measure of arc ADB?Imported Asset

2 points

QUESTION 28

  1. Find the measure of angle X.Imported Asset

2 points

QUESTION 29

  1. Point C is the center of the circle. Arc AB measures 5x + 2. Angle ACB measures 3x + 14. Find the value of x.Imported Asset

2 points

QUESTION 30

  1. Point C is the center of the circle. Angle ACB measures Imported Asset . What is the measure of arc AB?Imported Asset

2 points

QUESTION 31

  1. Angle ACB is an inscribed angle of circle P. What is the measure of Imported Asset ACB if the measure of Imported Asset is Imported Asset .
    Imported Asset

2 points

QUESTION 32

  1. Point C is the center of the circle. What is Imported Asset if Imported Asset is equal to Imported Asset ?Imported Asset

2 points

QUESTION 33

  1. Angle C is an inscribed angle of circle P. Angle C measures (3x + 5)° and arc AB measures (16x)°. Find x.Imported Asset

2 points

QUESTION 34

  1. Angle C is an inscribed angle of circle P. Angle C measures (20x – 5)° and arc AB measures (30x + 30)°. Find the measure of arc AB.
    144954.GIF
    100 degrees
    75 degrees
    150 degrees

2 points

QUESTION 35

  1. Angle C is an inscribed angle of circle P. Angle C measures Imported Asset and arc AB measures Imported Asset . Find x.Imported Asset

2 points

QUESTION 36

  1. Point C is the center of the circle. If angle ACB measures Imported Asset and AB measures Imported Asset , find x.
    Imported Asset

2 points

QUESTION 37

  1. Point C is the center of the circle. If angle ACB measures Imported Asset and arc AB measures (x - 10)°, find x.Imported Asset

2 points

QUESTION 38

  1. Circles M and K are congruent, arc QR is congruent to arc LN and arc OP is congruent to arc VW. Find y.Imported Asset

2 points

QUESTION 39

  1. Circles M and K are congruent, Imported Asset is congruent to Imported Asset and Imported Asset is congruent to Imported Asset Find x.
    Imported Asset

2 points

QUESTION 40

  1. Circles M and K are congruent, Imported Asset is congruent to Imported Asset and Imported Asset is congruent to Imported Asset Find x.Imported Asset

2 points

QUESTION 41

  1. Circles M and K are congruent, Imported Asset is congruent to Imported Asset
    What is the length of Imported AssetImported Asset

2 points

QUESTION 42

  1. Circles M and K are congruent, arc QR is congruent to arc LN and arc OP is congruent to arc VW. Find x.Imported Asset

2 points

QUESTION 43

  1. Circles M and K are congruent, Imported Asset is congruent to Imported Asset and Imported Asset is congruent to Imported Asset Find y.Imported Asset

2 points

QUESTION 44

  1. Find the measure of Angle A if Imported Asset is equal to 31° and Imported Asset is equal to 67°.Imported Asset

2 points

QUESTION 45

  1. Find x.Imported Asset

2 points

QUESTION 46

  1. Imported Asset and Imported Asset are tangent to circle D. Find angle B if arc AEC measures 210°.Imported Asset

2 points

QUESTION 47

  1. Find x.Imported Asset

2 points

QUESTION 48

  1. Find angle A if Imported Asset is equal to 66° and Imported Asset is equal to 20°.Imported Asset

2 points

QUESTION 49

  1. Imported Asset and Imported Asset are tangent to circle D. Find x if Imported Asset = Imported Asset and Imported Asset =7. Find x.Imported Asset

2 points

QUESTION 50

  1. Find angle A if Imported Asset is equal to 23° and Imported Asset is equal to 15°.Imported Asset

2 points

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Explanation & Answer

Attached.

QUESTION 1
1. Solve 3x – y + 2z = 6
-x + y = 2
x – 2z = –5

Answer:
Add the first equation to the third equation we have
3x-y+2z+x-2z=6-5 combine like term then 4x-y=1
Add this equation to the second equation we have:
4x-y-x+y=1+2 then 3x=3 then x=1
Plug x=1 into the second equation we have:
-1+y=2 then y=3
Plug x=1 into the third equation we have
1-2z=-5 then z=3
Final we can say the solution is (x, y, z) = (1, 3, 3)

(x,y,z)

(-1, -3, -3)
(1, 3, 3)
(1, -3, -3)
(1, 3, -3)

2 points

QUESTION 2
1. Solve 2x + y + z = 5
4x – 2y – z = 0
3x – y + 2z = 6

Answer:
Add the first equation to the second equation we have
2x+y+z+4x-2y-z=5+0 combine like term then 6x-y=5 then y=6x-5
Multiply both side of the second equation by 2 and add to the third equation we have:
8x -4y-2z+3x-y+2z=0+6 then 11x-5y=6
Plug y = 6x-5 into the equation 11x-5y =6 we have:
11x-5(6x-5)=6 then 11x-30x+25=6 then x=1
Plug x=1 into the equation y = 6x-5 we have:

y=6*1-5 =1
Plug x=1 and y=1 into the first equation we have:
2*1+1+z=5 then z=2
Final we can say the solution is(x, y, z) = (1, 1, 2)
2.
(x,y,z)

(1, 1, 2)
(-1, -1, -2)
(5, 0, 6)
(1, 1, -2)

2 points

QUESTION 3
Solve 5x + 2y – 3z = 4
-2x – 4y + z = -8
x+y+z=2

Answer:
Subtract the second equation to the third equation we have
-2x-4y+z-x-y-z=-8-2 combine like term then -3x-5y= -10
Multiply both side of the third equation by 3 and add to the first equation we have:
3x+3y+3z+5x+2y-3z=6+4 then 8x+5y=10
Add the equation 3x-5y= -10 to the equation 8x+5y=10 we have
3x-5y+8x+5y=-10+10 then 11x=0 then x=0
Plug x=0 into the equation 8x +5y=10 we have:
8*0+5y=10 then y=2
Plug x=0 and y=2 into the third equation we have:
0+2+z=2 then z=0
Final we can say the solution is: (x, y ,z)=(0, 2, 0)

1.
(x,y,z)

2 points

(2, 0, 0)
(0, 2, 0)
(2, -2, 0)
(0, -6, 9)

QUESTION 4
Solve 4x + y + z = 1
8x – 4y – 7z = 2
–5y – 9z = –33

Answer:
Multiply both side of the first equation by 2 and subtract to the second equation we have:
8x+2y+2z-8x+4y+7z=2-2 then 6y+9z=0
Add the equation 6y+9z=0 to the third equation we have:
6y+9z-5y-9z=0-33 then y=-33
Plug y=-33 into the equation 6y+9z=0 we have:
6*(-33)+9z=0 then z=22
Plug y=-33 and z=22 into the first equation we have:
4x-33+22=1 then x=3
Final we can say the solution is: (x, y, z) = (3, -33, 22)
1.
(x,y,z)=

(3, -33, 22)
(1, 2, 3)
(-3, 0.5, 2)
(0.5, 3, 2)

2 points

QUESTION 5
Solve 2x + y – z = 3
4x – y + 4z = 0
-3y + 2z = 6

Answer:
Multiply both side of the first equation by 2 and subtract to the second equation we have:
4x+2y-2z-4x+y-4z=6-0 then 3y-6z=6
Add the equation 3y-6z=6 to the third equation we have:
3y-6z-3y+2z=6+6 then -4z=12 then z=-3
Plug z=-3 into the equation 3y-6z=6 we have:
3y-6*(-3) = 6 then y=-4
Plug y=-4 and z=-3 into the first equation we have:
2x-4+3=3 then x=2

Final we can say the solution is: (x, y, z) = (2, -4, -3)
1.
(x,y,z)

(2, -4, -3)
(-2, 4, 3)
(4, 2, -7)
(-4, -2, 7)

2 points

QUESTION 6
Solve 4x + y – 2z = 0
2x – 3y + 3z = 9
-6x – 2y + z = 0

Answer:
Multiply both side of the third equation by 2 and add to the first equation we have:
-12x-4y+2z+4x+y-2z=0+0 then -8x-3y=0
Multiply both side of the third equation by 3 and subtract to the second equation we have:
-18x-6y+3z-2x+3y-3z=0-9 then -20x-3y=-9
Subtract the equation -8x-3y=0 to the equation-20x-3y=-9 we have:
-8x-3y+20x+3y=0+9 then 12x=9 then x=3/4
Plug x=3/4 into the equation -8x-3y=0 we have:
-8*(3/4)-3y=0 then y=-2
Plug x=3/4 and y=-2 into the first equation we have:
4*(3/4)-2-2z=0 then z=1/2
Final we can say the solution is: (x, y, z)=(3/4,-2,1/2)
1.
(0, 9, 0)

(0, -9, 0)
(x,y,z)

2 points
QUESTION 7
Solve x + 3y + 4z =0
x – 2z = 8
y+z=3

Answer:

Subtract the first equation to the second equation we have:
x+3y+4z-x+2z=0-8 then 3y+6z=-8 then y+2z=-8/3
Subtract the equation y+2z=-8/3 to the third equation we have:
y+2z-y-z=-8/3-3 then z=-17/3
Plug z=-17/3 into the equation x – 2z = 8we have:
x – 2*(-17/3) = 8 then x=-10/3
Plug z=-17/3 into the equation x+y=3 we have:
y-17/3=3 then y=26/3
Final the solution is: (x,y,z)=(-10/3, 26/3, -17/3)

(x,y,z)

2 points

QUESTION 8
1. Twice the first number is eleven more than the sum...


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