You just cross multiply and then simplify
Answer:
use the pythagoras theorem
Step-by-step explanation:

Answer:
k = 10
Explanation:
The initial polynomial is:

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

Therefore, we can solve for k as follows:

So, the value of k is 10
Answer:
3:12 part to whole
Step-by-step explanation:
12 pieces of candy = whole
3 reese's = part
3 part : 12 whole
6(21)=72 6(31)=186
add 72+186=258
258 is the answer