Remember the definition of vertical angles.
The angle between 7x+7 and 112 are vertical. They are congruent and with the same measure.
7x +7= 112
Subtract 7 on both sides.
7x= 105
Divide both sides by 7.
x= 15
I hope this helps!
~kaikers
Step-by-step explanation:
you just need to put each in the calculator. I'm not so sure what an ALEKS calculator is
Either a or b. C and d don’t make sense cuz there’s no way those lines are perpendicular
A triangle should have 3 points and 3 sides. Let say that the point is ABC. Then the sides would be AB, AC and BC.
There are 3 strings with a different length that can be put into the sides. Assuming the string can be used once, then the possible way would be:
3!/(1+3-3)!= 3!/1!= 3*2*1= 6 ways
