12. 5x 3y + 2z = -1 2x +7y %3D 4x - 7y = 1 %3D 15. 3p + 2g = 11 4g – r = 6 6p + 7r = 4 18. x - 2y + 3z = -7 %3D 2x z = 7 -4x + 3y + 2z = -14 21. 2a + 2b – c = -1 3a + 4b + c = 10 5a – 2b - 3c = 2

Q: = 7x3-3x2 +x+2 and B one: 5x3 +7x2-11 b. -5x3 +7x? – x - 11 -5x3 + x2 +x- 11 c.

A: Given: A=7x3-3x2+x+2B=2x3+4x2-9Find: B-A

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A:

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A: 7. A parabola can have equation of the form x=a(y-k)2+h. This parabola will have vertex at (h,k) and…

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A: Let Peter have x candies in total.

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A: We have given a chess game Number of matches = 14 Win of 1 game = 1 point Draw of 1 game = 1/2 = 0.5…

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A:

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A: The objective of the question is graph the given equation.

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A:

Q: -7x+2y=D4 3x-5y=-2

A:

Q: Select Answer 2. 12x + 15y + 3z 20x + +25y + 5z 28 x + 35y + 7z -9 -15 -21

A: To solve the following system of equations.

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A:

Q: Solve the inequalities  1. -40 is equal to and/or greater than 1/4x - 6 2. -7(x - 1/2) > -28

A: Given that: 1. -40≥14x-62. -7(x-12)>-28

Q: 3. y=-3x + 2 y = 2x - 3 454-8 2 1 21

A:

Q: 2x-4-3y 5y-x=5

A:

Q: -2x - y - 3z = 3 2x - 3y + z = 13 2x - 3z = -11

A: We need to solve the system of equations -2x - y - 3z = 3               (i)   2x - 3y + z = 13…

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Q: T. If TM 3y and TX 2y + 24, then Y

A: Given,  TM = 3y TX = 2y + 24

Q: Ex; y* + 8y" + 16у %3D0

A:

Q: A D 3. Step 2: Complete the table for y – 2z - -5. y - 2x - -5 2 1 y- 27 = -5 * 2 10 y -9 -7 -5 y-…

A:

Q: y³ +9y²

A: Factorise the given polynomial  y³ +9y²

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A:

Q: 3z + 3w = 5 5x + 10y +z + 56w =-9 4x +9y + 48w =-9 3x + 6y + 33w -6.

A: Solution:

Q: 16. y=3r-4 X

A:

Q: 1. 8x+9-6x-7  2. 2y-6+5y+9 3. 3x+8+4x-9 4. 9y+16-12y+24 5. 7g-5-8g+12

A: Given that

Q: az Find if yz – In z = x + y ax 3.

A: We have              yz-lnZ=x+y

Q: If ( x+2 y)= -4 and am = 6, then 2amx+4amy %3D %3D O 2 О -24 О 48 О 24 O 4

A:

Q: Suppose that the width of certain rectangular is three centimeters less than two times its length.…

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Q: 7. y 2x +9 y = 6-x 8. y x+ 17 y = 4x + 2 9. y = x - 4 10. y = 2x + 5 y = 3x 1 y = 4x - 10

A:

Q: 17. EC bisects ZBED, mZAEB = 11x-12 and mZCED = 4x +1. Find mZAEC. %3D %3D A + D

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A: solution.

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A: