Multiply both sides by -8 to get k = -16
To check the solution, plug in -16 into the original equation. You do in-fact get 2
Answer: 
Step-by-step explanation:
For this exercise it is important to remember the following:

Given the following expression:

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:
1. Replace
with
and simplify:

2. Descompose 12 into its prime factors:

3. Substitute into the expression:

4. Since
, you can simplify it:

Answer:
x = rd/c
Step-by-step explanation:
xc = rd
xc/c = rd/c
x = rd/c
Answer:
b)
a)
a)
Step-by-step explanation:
hope this helps i havent done this in a while
Answer:
11
Step-by-step explanation: