Answer: r=-2
Step-by-step explanation:
5r=(−3)(r)+(−3)(3)+−7
5r=−3r+−9+−7
5r=(−3r)+(−9+−7)
5r=−3r+−16
5r=−3r−16
5r+3r=−3r−16+3r
8r=−16
8r/8 = -16/8
r=-2
Answer:
B = 143.13 degrees
sin (B) = sin (143.13) = 3/5 = 0.6
Step-by-step explanation:
Obtuse angles are the ones greater than 90 degrees but smaller than 180 degrees.
They belong to the second quadrant
We first find B'
tan (2*B') = 24/7
2*B' = arctan (24/7)
B' = 0.5*arctan (24/7)
B' = 36.869
But since B is from the second quadrant, this means that
B = 180 - B' = 143.13 degrees
sin (B) = sin (143.13) = 3/5 = 0.6
33/5 hope that helppssssssss
Answer:
Don't take my word for it but I think it would be 55% chance. I'm Probably wrong.
Step-by-step explanation:
