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Juliette [100K]
2 years ago
6

Unit 2

Mathematics
1 answer:
olga2289 [7]2 years ago
5 0

Answer:

A. $6.67

Step-by-step explanation:

a) 2y -3x + 8

a) y = - 3/2x + 8/2

a) y = - 3/2x + 4

b) 5y - 15x = -30

b) 5y = 15x - 30

b) y = 15/5x - 30/5

b) y = 3x - 6

3x - 6 = 3/2x + 4

3x -3/2x = 4+6

3/2x = 10

x = (10) / (3/2) = $6.67

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3 years ago
let x1,x2, and x3 be linearly independent vectors in R^(n) and let y1=x2+x1; y2=x3+x2; y3=x3+x1. are y1,y2,and y3 linearly indep
Nutka1998 [239]

Answer with Step-by-step explanation:

We are given that

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Let b_1,b_2 and b_3 such that

b_1y_1+b_2y_2+b_3y_3=0

b_1(x_2+x_1)+b_2(x_3+x_2)+b_3(x_3+x_1)=0

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b_1+b_2=0

b_1=-b_2..(2)

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b_2=-b_3..(3)

Because x_1,x_2 and x_3 are linearly independent.

From equation (1) and (3)

b_1=b_2...(4)

Adding equation (2) and (4)

2b_1==0

b_1=0

From equation (1) and (2)

b_3=0,b_2=0,b_3=0

Hence, y_1,y_2 and y_3 area linearly independent.

5 0
3 years ago
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soldi70 [24.7K]

Answer:

Step-by-step explanation:

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3 years ago
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3 years ago
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