45. divide the first set of x and y by 2 then multiply by 9 to get 45 for y and 18 for x
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
We need to move the decimal so that there is only one whole number.
375,000.
To do that, we move to the left 5 spaces
3.75000
Now since we moved 5 spaces to the left it would be 3.75 * 10^5
Answer:
13
Step-by-step explanation:
13 come after 12 in the number sequence
In 28 days, a clysedale would drink about 840 gallons of water. Due to
the fact that clysedale drinks 120 gallons of water every 4 days, you
would first find the number of gallons that it can drink in one day, so
120 divided by 4 equals 30, so the horse drinks 30 gallons of water a
day. To find out how many many gallons the clysdale would drink in 28
days, you need to multiply 30 by 28, to find the answer of 840.