Find the solution to the system of equations by using graphing or substitution y=2x-1 and y=x+3

1 answer:

7 0

Lets use substitution, since there isn't any graphing method here.

y= x + 3
y = 2x - 1

x + 3 = 2x - 1
-x -x

x - 1 = 3
+1 +1

x = 4

Now solve for y

y = 2(4) - 1
y = 8 - 1
y = 7

We have the solution: (4,7)

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Illusion [34]

Answer:

Step-by-step explanation:

Tan Ф = opposite/adjacent = 170/90 = 1.89

Ф = tan⁻¹ 1.89 = 62.1°

tan Ф = x/207

tan 62.1° x 207 = x

1.89 x 207 = 391.23