Answer:
Tires that wear out by approximately 24307.8 miles will be replaces free of charge.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 27,000 miles
Standard Deviation, σ = 2100 miles
We are given that the distribution of life expectancy is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.10
Calculation the value from standard normal z table, we have,
Tires that wear out by approximately 24307.8 miles will be replaces free of charge.
The slope of the first equation has a slope of one and a y intercept of -4. The second equation has a y intercept of -2.3333 as seen when plugging in 0 for x, so the same y-intercept and same line are out of the question. This means either they have the same slope and thus are parallel or intersect at some point. A simple way to find out? Plug in 1 for x on the second. If it isn't -1.33333, which is a slope of positive 1 such as in the first equation, they WILL INTERSECT somewhere. When plugging in 1, we get
3y - 1 = -7
3y = -6
y = -2
(1, -2) is the next point after (0, -2.3333)
That means it is most certainly not the same slope, and thus they will intersect at some point. The two slopes are 1/1 and 1/3 if you weren't aware.
Answer:
It's the second one!
Step-by-step explanation: Let me know if you're looking for this :)
Answer:
it's blocked can't see
Step-by-step explanation:
ANSWER
Sharla(x) is 55 and Patricia(y) is 47
Work:
EQUATIONS
y = x + 8
x + y = 102
REASONING
then substitute the like terms "y"...you should get...
2y + 8 = 102
then subtract 8 from both sides ...leaving you with...
2y = 94
then divide
your y should be 47
then subtract 47 from 102 and you get Sharla's age, which is 55
