Answer:
Step-by-step explanation:
Let's solve one of them for x.
Add 4
Divide by 3.
Now, plug the value of y in the formula, or you can plug the value of x in the other equation. I'll take this one.
Multiply by 3 to get rid of the denominator.
add x
Combine like terms;
Divide by 4.
Simplify.
Now that you found the value of x, replace it in any of the equations to find y.
Proof:
Answer:
y = 15°
∠A = 78°
∠B = 68°
∠BAC = 34°
Step-by-step explanation:
∠BAC = 180° - 146° = 34°
the sum of the interior angles of any triangle is 180°
5y + 3 + 4y + 8 + 34° = 180°
combine like terms:
9y + 45° = 180°
subtract 45° from each side of the equation:
9y = 135°
divide both sides by 9:
y = 15°
∠A = 5(15) + 3 = 78°
∠B = 4(15) + 8 = 68°
Answer:
I'm certain that it's AB and HI
Step-by-step explanation:
In fractions, the top number is the numerator and the bottom number is the denominator
Answer:
The supplementary angle is 96.6.
Step-by-step explanation:
Complementary angles make up to 90 degrees, but since this is a supplementary angle, it'll make up to 180 degrees. From there, you subtract 180-83.4 to get 96.6 degrees.
