(5•-3)^2 - (2•5 - 3•-3)^3

−6634

Step-by-step explanation:

((5)(−3))2−((2)(5)−(3)(−3))3

=(−15)2−((2)(5)−(3)(−3))3

=225−((2)(5)−(3)(−3))3

=225−(10−(3)(−3))3

=225−(10−(−9))3

=225−193

=225−6859

=−6634

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

false

step-by-step explanation:

rulers and compasses arent required in order to bisect an angle because when bisecting angles, you're making a "half circle" and considering in order to bisect an angle it wouldn't be straight, you wouldn't need either of the two