Answer:

Step-by-step explanation:
We have the inequality:

Solve. Divide both sides by -2. Since we are dividing by a negative, we must flip the inequality sign. Thus:

Add 5 to both sides:

Therefore, our solution is all numbers greater than 11 .
This means that if we substitute any number greater than 11 into our original inequality, the inequality will be true.
Answer:
-1/2
Step-by-step explanation:
the slope of the first line is 2
to get the line perpendicular, you swap the numerator and denominator, then if positive make negative and the other way around
Answer:
BC=5
Step-by-step explanation:
BC^2= AB^2 + AC^2
x^2= 4^2 + 3^2
x^2= 16 +9
x^2= 25
x=

x= 5
Add the like terms.
12r+11r-4r= 19r
5s+9s=14s
-7t=-7t
19r+14s-7t