I hope this helps you
3x-5+5=9+5
3x=14
x=4,66666....
Answer:
the probability the person's reaction time will be between 0.9 and 1.1 seconds is 0.0378
Step-by-step explanation:
Given the data in the question;
the cumulative distribution function F(x) =
;
probability the person's reaction time will be between 0.9 and 1.1 seconds
P( 0.9 < x < 1.1 ) = P( x ≤ 1.1 ) - P( x ≤ 0.9 )
P( 0.9 < x < 1.1 ) = F(1.1) - F(0.9)
= [
] - [
]
we substitute
= [
] - [
]
= [
] - [
]
= [
] - [
]
= [ 1 - 0.1079796998 ] - [ 1 - 0.1457938 ]
= 0.8920203 - 0.8542062
= 0.0378
Therefore, the probability the person's reaction time will be between 0.9 and 1.1 seconds is 0.0378
Answer:
x < 3
Step-by-step explanation:
6(x + 3) < 5x + 18 + x
- 6x + 18 < 6x + 18
- 6x + 6x < 18 + 18
- 12x < 36
- x < 36 ÷ 12
- x < 3
Density = Mass/Volume => Volume = Mass/Density = 12/3.1 = 3.87ml
The correct answer would be -9/4