Solve the system of linear equations by substitution. Check your solution.

X = -5

y = 1

Step-by-step explanation:

plug in -3x - 14 for y

x + 4 ( -3x - 14) = -1

x - 12x - 56 = -1

-11x = 55

x = -5

plug in for x

-3(-5) - 14 = y

15 - 14 = y

y = 1

plug in and it proves equal

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2