Substitute -x-5 for y
Gets you:
3x-2(-x-5)
Distribute the 2
3x-(-2x-10)
Distribute the -1
3x+2x+10
Combine like terms
5x+10
Subtract 10 from both sides
5x=-10
Divide by 5
x = -2
The other angle will be 45 degrees ( 180-90-45=45 angle sum of triangle)
Thus this is an isoceles triangle—> x = y
Using Pythagoras’s theorem, 2x^2 = 7^2= 49
Thus x = 7/rt(2) or -7/rt(2) , then reject negative values and rationalise to get 7rt(2)/2 for x, thus x = y = 7rt(2)/2
Answer:
10
Step-by-step explanation:
subtract 30 form 40 =10
Answer:
1. angle 2, angle 4, angle 6
2. angle 1, angle 3 angle 5, angle 7
3. If 8 is congruent to 4 and 5 is a supplementary angle to 8, then 5 is a supplementary angle to 4
Step-by-step explanation:
8 and 2 are congruent by 2 being a vertical angle to 4
8 and 4 are congruent because they are Corresponding Angles
8 and 6 are vertical angles
8 and 1 form are angles that form a strait line
8 and 5 are angles that form a strait line
5 and 7 are vertical angles meaning that it is supplementary to 8
5 and 3 are alternate interior angles meaning that it is supplementary to 8
The correct answer is equal only because 4,050 has tenth a and hundredths break it down and it is equal
