Answer:
84°
Step-by-step explanation:
< DEB = ½× (31+ 137) = ½× (168) = 84°
Answer:
sin70°
Step-by-step explanation:
Given sin110° where 110° is an obtuse angle in the second quadrant.
The related acute angle in the first quadrant is 180° - 110° = 70°
Thus
sin110° = sin70°
I think it can be 605. I'm not sure exactly, but I think it is.
Answer:
75 of additional money
Step-by-step explanation:
5% of 1,500 is 75
and 1,500 plus 75 is 1575
Answer:
see below
Step-by-step explanation:
2x+8y=12 3x-8y=11
If we have to solve by substitution, Take the first equation and divide by 2
2x/2 + 8y/2 =12/2
x+4y = 6
Then subtract 4y from each side
x = 6 -4y
Then substitute this into the second equation
This is best solved by elimination
2x+8y=12
3x-8y=11
----------------
5x = 36
x = 36/5
