Answer:
46°
Step-by-step explanation:
Answer:
y= 5x+2
Explanation:
slope is 5 and the y-intercept is 2.
Answer:
2⁴
Step-by-step explanation:
4² would be 4x4 not 2x2x2x2
2x2x2x2 would be 2⁴.
Answer:
This equation is equivalent to 

<em>Hope this helps and have a great day!</em>
Answer:
Step-by-step explanation:
From the information given:
mean life span of a brand of automobile = 35,000
standard deviation of a brand of automobile = 2250 miles.
the z-score that corresponds to each life span are as follows.
the standard z- score formula is:

For x = 34000


z = −0.4444
For x = 37000


z = 0.8889
For x = 3000


z = -2.222
From the above z- score that corresponds to their life span; it is glaring that the tire with the life span 30,000 miles has an unusually short life span.
For x = 30,500


z = -2
P(z) = P(-2)
Using excel function (=NORMDIST -2)
P(z) = 0.022750132
P(z) = 2.28th percentile
For x = 37250


z = 1
Using excel function (=NORMDIST 1)
P(z) = 0.841344746
P(z) = 84.14th percentile
For x = 35000


z = 0
Using excel function (=NORMDIST 0)
P(z) = 0.5
P(z) = 50th percentile