Select all equations that represent the relationship between the measures of the angles in the figure. N
bº
0°
K
M
L
180 = b - a
a=0
180 - a = b
a+b= 180
a+b = 90
b= 90 - a

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)