1. simplify the expression √36x^2/y^7
2. simplify the expression (1-3i)(2+-12i)
3. the formula c= √a^2+b^2 represents the length of the hypotenuse of a right triangle with side lengths a and b. solve the equation for a. show your work. that means get "a" all by itself on one side of the equation.

See below

Step-by-step explanation:

1.

2.

** i^2=-1, -15i^2 = 15

3.

answer:

c 60% on edg

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.