(2x - 5) (5x - 10)
Use FOIL
10x² - 20x - 25x + 50
10x² - 45x + 50
5( 2x² - 9x + 10)
2x -5
x -2
5(2x - 5)(x -2)
make each equal to 0
2x - 5 = 0
x - 2 = 0
2x - 5 = 0 x - 2 = 0
2x - 5 (+5) = 0 x - 2 (+2) = 0 (+2)
2x = 5 x = 2
x = 5/2
x = 5/2 , 2
hope this helps
Answer:
A discount of 24%
Step-by-step explanation:
100 x 0.8 x 0.95
=76
Step-by-step explanation:
Below is an attachment containing the solution.
Answer:
A
Explanation:
All of the other choices are ongoing decimals which make the irrational numbers
Answer:
2,300
Explanation:
This is given as:

Therefore, there are 2,300 ways that 3 persons can be selected from 25 people