What am I answering tho because p can be parallel to r by AA theorem
You use lots and lots of math.
Degree is the highest power of the polinomail
since higest poer is p^3, 3 is higest poer=degree
3rd degree
Cos(θ) = -20/√((-20)^2 +(-21)^2)
.. = -20/-√841 . . . . . . . . . . . . . . . . . θ is a 4th-quadrant angle, so cos(θ) > 0
.. = 20/29
The value of the cosine is 20/29.
Brother=b
b+9=11
b=2
2=1/5a
10=a
a=10
The answer is 10
Hope this helps :)
