Answer:
The number of ways is 
Step-by-step explanation:
From the question we are told that
The number of factories visited is 
The number of factories to be visited by a representative r = 5
The number of way to visit the 5 factories is mathematically represented as
Where P represents permutation
=> 
=> 
=>
Sarah,
Let x = cost of notebook
let y = cost of thumbdrive
For Troy 5x + 5y = 75
For Lisa 2x + 6y = 78
Troy's equation let's divide it by 5 and get
x+ y = 15 multiply by -2
-2x -2y = -30
2x + 6y = 78 Add equations
4y = 48
Solve for y. Then plug it in one of the original equations and solve for x. Check by plugging into the other original equations
Step-by-step explanation:
Answer: (8y+1)(y+5)
Step by step:
8y2 + y +40y + 5
y(8y+1) + 5(8y+1)
(8y+1)(y+5)
For this case we have the following expression:
1 / 2g ^ 2 + 7/2 + 3g ^ 2- 4 / 5g + 1/4
The first thing we must do is to group terms with the same degree:
g ^ 2 (1/2 + 3) - 4 / 5g + (7/2 + 1/4)
Then, rewriting we have:
(7/2) g ^ 2 - (4/5) g + (15/4)
Answer:
(7/2) g ^ 2 - (4/5) g + (15/4)
The answer would be the first one because you use the equation
m= y2 - y1 over x2 - x1. and put the numbers in to find the slope (-3) and the only one with -3 is the first one
