The answer would be b because you’re not doing anything to the question
Answer:
The expected number of adult workers with a high school diploma is 4.
Step-by-step explanation:
This random variable X can be modeled with the binomial distribution, with parameters n=10 (the sample size) and p=0.4 (the probability that a adult worker have a high school diploma).
The expected value of X is then the mean of the binomial distribution with the parameters already mentioned.
This is calculated as:
![E(X)=\mu_b=n\cdot p=10\cdot0.4=4](https://tex.z-dn.net/?f=E%28X%29%3D%5Cmu_b%3Dn%5Ccdot%20p%3D10%5Ccdot0.4%3D4)
Answer:
131.88 cm²
Step-by-step explanation:
The surface area of a cylinder is 2πr² + 2πrh
Since the figure we are dealing here is a quarter of a cylinder, divide the equation by 4.
New equation =
![\frac{2\pi r^{2}+2\pi rh}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Cpi%20r%5E%7B2%7D%2B2%5Cpi%20%20rh%7D%7B4%7D)
We know:
r = 6 cm
h = 8 cm
Now substitute the values and solve:
![\frac{2(3.14)(6)^{2} +2(3.14)(6)(8)}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2%283.14%29%286%29%5E%7B2%7D%20%2B2%283.14%29%286%29%288%29%7D%7B4%7D)
![\frac{226.08+301.44}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B226.08%2B301.44%7D%7B4%7D)
![\frac{527.52}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B527.52%7D%7B4%7D)
= 131.88 cm²
Step-by-step explanation:
58 +38 = 96 degree
so we do 180 - 96 = 84 degree valur of x for one triangle
so opposite side angke x will be 96
so again we do 96 +15 = 111 degree
180 - 111 = 69 degree
Convert to improper fraction then add together.
2 3/4 yards = 11/4
1 1/2 yards = 3/2
Then convert 3/2 into quarters = 6/4
Then add together 11/4 + 6/4 = 17/4 and convert back to mixed number
17/4 = 4 1/4 yards