2 years ago

I need help this is due tonight

1 answer:

4 0

Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

First, let's establish that, they are co-interior angles on parallel lines. We can identify this as they form a 'C' shape on parallel lines.

Co-interior angles add up to 180°.

Therefore:

( x + 27 )° + ( 3x - 25 )° = 180°

x + 3x = 180 - 27 + 25

4x = 178

x = 178 / 4

x = 89 / 2

x = 44.5°

Hope this helps! <3

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(x+3)^2=4

GalinKa [24]

Answer:

x = -1, -5

Step-by-step explanation:

${(x + 3)}^{2} = 4 \\ = > {x}^{2} + 2 \times x \times 3 + {3}^{2} = 4 \\ = > {x}^{2} + 6x + 9 = 4 \\ = > {x}^{2} + 6x = 4 - 9 \\ = > {x}^{2} + 6x = - 5 \\ = > {x}^{2} + 6x + 5 = 0 \\ = > {x}^{2} + 5x + x + 5 = 0 \\ = > x(x + 5) + 1(x + 5) = 0 \\ = > (x + 1)(x + 5) \\ = > x = - 1 \: \: or \: \: - 5$