(8y + 2) + (25y - 20) = 180 {interior angles on the parallel lines add up to 180)
Remove brackets:
8y + 2 + 25y - 20 = 180
Combine like terms:
33y - 18 = 180
Add 18 to both sides:
33y = 198
Divide both sides by 33:
y = 6
Answer: y = 6
(10x) + (8y + 2) = 180 {Adjacent angles on a straight line add up to 180)
Plug y = 6 into the equation:
(10x) + (8(6) + 2) = 180
Evaluate the bracket:
10x + 50 = 180
Subtract 50 from both sides:
10x = 130
Divide both sides by 10:
x = 13
Answer: x = 13
Answer:
<em>A = 29.96</em>
Step-by-step explanation:
<u>Area of a triangle</u>
<em>Side Angle Side (SAS) Method
:</em>
Given a triangle with two known sides a and b, and their included angle C, the area can be calculated as follows:
The triangle has sides of lengths a=7 and b=9 and their included angle is C=72°. Substituting:
A = 29.96
Answer:
1.) D
2.) H
3.) A
4.) J
5.) C
Step-by-step explanation:
Hope this helps! :)
8x+4+10x-6+y=180
18x-2+y=180
y=182-18x
y=degree measure of third angle.