Project b = (1,0,0) onto the lines through a₁ and a2 in Problem 5 and also onto = a3 (2,1,2). Add up the three projections P₁ + P₂ + P3.

Q: 2(3y-5)=34

A: We will see the ans in next step

Q: 7+(-58)-7

A: Correct answar would be (-72).

Q: 2а' -7а -15 2а-10

A: 2a2-7a-152a-10=2a2-10a+3a-152(a-5)                         =2a(a-5)+3(a-5)2(a-5)…

Q: 15=-3(-1-1)+9

A:

Q: + + = 20 + + + + X = 15 - + X + X = 42 =3 =14 =27

A:

Q: 3a-2+5a=-3-(-7)+12a

A: See this solution in below.

Q: 5n+34=-2(1-7)

A: Consider the following expression: 5n+34=-21-75n+34=-2×-65n+34=125n=12-345n=-22n=-225n=-4.4

Q: 44 + A4 + 44 = 30 A4 =20 = 13 + %3D

A: We are given for pictorial representation of three things: boy, shoe and burger. We need to get the…

Q: 7x-9+2x=-3(-2+12)

A: 7x-9+2x = -3(-2+12) adding x turms together:9x -9 = -3(10)9x = -30+99x = -21x = -219

Q: 2. 1/4 4.

A: We will use basic arithmetic operation to solve

Q: Identify the expression that is not equivalent to the others x-2+3x , 4(x-2) , -2+7x-3x , 4x-2

A: We have to simplify each expression.x-2+3x= 4x-2 (combined x+3x=4x)4(x-2) = 4x-8 (distributed 4)

Q: find the value  of the expression   -6 - (-12)  - 4

A:

Q: (-3,9) (-3,-5)

A: In (-3,9) and  (-3,-5) x ordinate = -3 for both.So on the line joining them x is fixed.

Q: a2-7a+10=0

A: We have to factor 10 so that the sum of the factors = -710= -5 times -2 and -5 + (-2) =-7 too So we…

Q: -23+3k>-5

A: Given that  -23+3k>-5 To solve the above expression.

Q: 18x+26=22

A:

Q: 11 = x + (-17) X= ?

A:

Q: 2(a+3)= -12

A: Solution: Here 2(a+3) =-12

Q: Evaluate the expression and y = 1 and 2 = - 4x² + 4xzy if x = 2 3

A: To evaluate the expression -4x2+4xz-y if x=2 and y=1 and z=-3.

Q: 7. -4X - 2y = -12 4x + 8y = -24

A: To solve for x and y. -4x-2y=-124x+8y=-24

Q: 9-2c=-13 justification

A: The objective of the question is to solve the equation for the variable 'c'.

Q: -2g + = 3g - 37

A:

Q: 4d-5=19

A: We have to solve the given equation. The given equation is 4d-5=19.

Q: Find (-8, 6).(3, 2).

A:

Q: 2y-4>-6 and 3y+1<13

A:

Q: Evaluate for b equals -6 b2+7b-5

A: Given: evaluate for b = - 6

Q: Find (-6, 8) (7, 9).

A:

Q: 2x-4y=-22 2x-3y=-19

A:

Q: 7 - 5 (10+8x)=37

A:

Q: 2x+3=-8+3x

A: Solve for x

Q: 5х-у 3 2 -9х + у %3D -10

A: