The m<1=(3x+10) and m<2= (x-30)

x= - 5

Step-by-step explanation:

x= - 5. it try You Tube

x=50; 1 and 3 = 160°; 2 and 4 = 20°

Step-by-step explanation:

We know that:

m<1 = (3x+10);

m<2 = (x-30)

So:

(3x+10)+(3x+10)+(x-30)+(x-30) = 360°

---> x = 50

So:

1 and 3 = 160°; 2 and 4 = 20°

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value