Answer:
4x² - x
Step-by-step explanation:
Add:
3x² + 2x - 1
x² - 3x + 1
Answer:
2 = 2 (Identity)
Step-by-step explanation:
1/3 (x+2)=-2/5 (x-9) and x=4
Follow distributive property
1/3x + 2/3 = -2/5x + 18/5
Replace x for 4
1/3(4) + 2/3 = -2/5(4) + 18/5
4/3 + 2/3 = -8/5 + 18/5
Add like terms
6/3 = 10/5
Simplify
2 = 2
Also known as Identity
Answer:

Step-by-step explanation:
Given

Required
Probability of alarm not working
implies that the alarm has a probability of not working on a given day.
So, the probability that the alarm will not work on an exam date is:

Express as decimal
