Answer:
12.9
Step-by-step explanation:
Intersecting chord segments are proportional, so:
35×a = 15×30
a = 12.9
Cost/(number of cassettes) = $14.50/2 = x/15
Multiply by 15 to solve
15*($14.50/2) = x = $108.75
15 cassettes will cost $108.75.
2.) 
--> 
So y = -4.
3.) 
Combine like terms:
--> 
Isolate x ---> 
----> 
So x = -2
4.) 
--> 
Combine like terms ---> 
This equation has many possible solutions.
5.) 
--> 
Combine like terms ---> 
----> 
-----> 
So x = -1.
6.) 
Distribute ---> 
This equation has many possible solutions.
okay well usually what I would tell you would be to use the ABC method. you would multiply A (2) by C (6) to get twelve. so you need two numbers that multiply to twelve and add to -4 (the B value). but there are no numbers that fit this description so you have to use the GCF method instead
for this method you must find the GCF for all three numbers which in this case is 2. 2(x^2-2x+3) all these numbers are now prime so this is the factored form
Answer: Dominant. The answer is dominant.
