360 ÷ 6 = 60 (Angles at a point)
Answer: 60°
For this case we have the following system of equations:

We multiply the first equation by -4:

We have the following equivalent system of equations:

We add the equations:

We find the value of the variable "x":

Thus, the solution of the system is:

See the graphic in the attached image
ANswer:

See the graphic in the attached image
Answer:
1.6022x 10-19
Step-by-step explanation:
1.6022x 10-19 then simplifies into 16.022 because of the 10, and then the final answer is -2.978
Answer:
B. isosceles, obtuse
Step-by-step explanation:
An isosceles triangle has 2 congruent sides and the is an obtuse angle.