F•h(7)=(-7+1)-1=-7 when you have a function that looks like foh, you basically plug the equation of h in for the x value in the equation of f
The measure of the angle is 50 degrees because it is half the arc that it is enclosed by
You do 9+3 which equals 12 then you multiply that by 4
Use the law of cosines.
a2+b2−2abcosC=c2
Find the measure of angle C. It is the opposite side of c.
c2−a2−b2−2ab=cosC
cosC=13.62−22.52−182−2(22.5)(18)≈0.797
C=cos−10.797=0.649 rad=37.19∘
angle B:
a2+c2−2accosB=b2
cosB=b2−a2−c2−2ac
B=cos−1b2−a2−c2−2ac=cos−1182−22.52−13.62−2(22.5)(13.6)≈0.927 rad=53.13∘
angle A:
b2+c2−2bccosA=a2
A=89.68∘
16/20 = 0.8
Each bag will have to weight 0.8 lbs