-7 + 4(n-1). Use this and plug in 10 for n, making it
-7 + 4(9)
-7+36
29
Answer:
(B)The GCF of the numbers(28 and 36) in each term in the expression is 4.
(C)The GCF of the variables(a and ab) in each term in the expression is a.
(E)The factored form of the expression is 4a(7+9b)
Step-by-step explanation:
Given the expression: ![28a+36ab](https://tex.z-dn.net/?f=28a%2B36ab)
If we write it as a product, we obtain:
![28a+36ab=4a(7+9b)](https://tex.z-dn.net/?f=28a%2B36ab%3D4a%287%2B9b%29)
We can see the following
- The GCF of the numbers(28 and 36) in each term in the expression is 4.
- The GCF of the variables(a and ab) in each term in the expression is a.
- The factored form of the expression is 4a(7+9b)
The correct options are B, C, and E.
Answer:
After 15 years the use of said machine is no longer profitable
Step-by-step explanation:
it should be used, as long as the money generated is not smaller as the costs generated. By setting both formulas equal (calculating the x value for when they are equal) you get x = 15 and x = -2.5(which doesnt make sense in this context).