You may use back of the street to work (5 points) 1. find a parametric representation of the solution set of the linear equation. + + + = 5 (5 points) 2. solve the system of linear equations. - 2y + 4 = 16 3r - 6y + 12z = 16 (5 points) 3. solve the homogeneous linear system corresponding to the given coefficient matrix. [1 0 0 1] 100 101 lo 0 0 0 (10 points) 4. consider the following matrix. page 1 of 2

the answer is c just got it on ed

step-by-step explanation:

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look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3