Answer: y=4
Step-by-step explanation:
x=2 so the equation would read 2+2y=10 and u want to get y alone so first u subtract by 2 on both sides so 2-2+2y=10-2 which is equal to 2y=8 so now u divide by 2 on both sides so it is y=4
Let

be the random variable for the weight of any given can, and let

and

be the mean and standard deviation, respectively, for the distribution of

.
You have

Recall that for any normal distribution, approximately 99.7% of it lies within three standard deviations of the mean, i.e.

. This means 0.3% must lie outside this range,

. Because the distribution is symmetric, it follows that

.
Also recall that for any normal distribution, about 95% of it falls within two standard deviations of the mean, so

, which means 5% falls outside, and by symmetry,

.
Together this means

Solving for the mean and standard deviation gives

and

.
The value of x,y, and z 85+ 84 right?
Answer:
-1.45
Step-by-step explanation:
-2 14--4/5=-1.45
Ok so 1inch=40cm
2 inches by 1.5
multiply everybody by 40 and make them all centimeters
20*2=80
1.5*40=60
80cm by 60cm
1inch=2.54cm
find how many inches in 1 cm
divide both sides by 2.54
1/2.54inch=1cm
80 by 60 cm
multiply that by 1/2.54 nd find inches iquivlent
80 times 1/2.54=31.4960629921259842519685037008
60 times 1/2.54=23.622047...
ok so
dimentions is 31.4960629921259842519685037008 inches by 23.622047 inches