Supplementary is when two angles add up to 180
Complementary is when two angles add up to 90
Note: I'm gonna be giving the evens and odds xP
20. Angle 2 is 37
21. Supplementary
22. Angle 1 is 87
23. Angle 2 is 141
24. Complementary
25. Angle 1 is 4<span>5</span>
Answer: It's correct because it is the only one with an angle more than 180°
Step-by-step explanation:
D is a right angle, A is an acute angle, as well as B. So not only is C the only one with an obtuse angle and it also has the biggest angle out of the other two angles on the triangle, you can use process of elimination to figure it out as well. Hope this helps, have a good day! :-)
5 1/3
8 2/15
2 4/5 change to 2 12/15
8 2/15 change to 7 17/15
-2 12/15
7 17/15
-2 12/15
——-——
5 5/15 reduced to 5 1/3
CAN EXPLAIN FURTHER
Answer:
I need more information
Step-by-step explanation:
A)
The discriminant (radicand) is √(b^2-4ac), let us call this "d" for the discriminant.
If:
d<0, there are no real solutions (though there are two imaginary ones)
d=0, there is one real solution
d>0, there are two real solutions.
In this case, d=12^2-4(4)9
d=144-144
d=0
So there is one real solution.
B)
9x^2-30x+25=0
9x^2-15x-15x+25=0
3x(3x-5)-5(3x-5)=0
(3x-5)(3x-5)=0
(3x-5)^2=0
x=5/3
x=1 2/3
