Answer: the probability that the tires will fail within three years of the date of purchase is 0.12
Step-by-step explanation:
The average lifetime of a set of tires is 3.4 years. It means that μ = 3.4
Decay parameter, m = 1/3.4 = 0.294
The probability density function is
f(x) = me^-mx
Where x is a continuous random variable representing the time interval of interest(the reliability period that we are testing)
Since x = 3 years,
Therefore, the probability that the tires will fail within three years of the date of purchase is
f(3) = 0.294e^-(0.294 × 3)
f(3) = 0.294e^- 0.882
f(3) = 0.12
Answer:
tanG= 15/20 = 3/4
tanX= 8/15
Step-by-step explanation:
tan is always opposite over adjacent
Answer:
![\large\boxed{x](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Bx%3C2.2%5Cto%20x%5Cin%28-%5Cinfty%2C%5C%202.2%29%7D)
Step-by-step explanation:
![22>10x\qquad\text{divide both sides by 10}\\\\\dfrac{22}{10}>\dfrac{10x}{10}\\\\2.2>x\to\boxed{x](https://tex.z-dn.net/?f=22%3E10x%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%2010%7D%5C%5C%5C%5C%5Cdfrac%7B22%7D%7B10%7D%3E%5Cdfrac%7B10x%7D%7B10%7D%5C%5C%5C%5C2.2%3Ex%5Cto%5Cboxed%7Bx%3C2.2%7D)
<, > - open circle
≤, ≥ - closed circle
<, ≤ - draw the line to the left
>, ≥ - draw the line to the right
The domain would be (4, infinity) so most likely your answer would be D.