N=4.5 In the picture are the steps you should follow to solve for n.
Answer:
The answer is 490
Step-by-step explanation:
It takes 10 hours at 49MPH so you have to multiply 49 miles × 10 hours which gives you 490 miles
Given:
μ = 500 days, the population mean
σ = 60 days, the population standard deviation
Therefore
μ + σ = 560
μ - σ = 440
μ + 2σ = 620
μ - 2σ = 380
μ + 3σ = 680
μ - 3σ = 320
The figure shown below illustrates the normal distribution
About 68% of the total area lies in x = (μ-σ, μ+σ)
About 95% of the total area lies in x = (μ-2σ, μ+2σ)
About 99.7% of the total area lies in x = (μ-3σ, μ+3σ).
Answer:
1/2 + 3i is the midpoint between -2-3i and 3+9i.
Step-by-step explanation:
Given the complex number
The formula to find the midpoint of two complex number (a + bi) and (c + di) is:
![M=\frac{\left(a+c\right)}{2}+\frac{\left(b+d\right)i}{2}](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B%5Cleft%28a%2Bc%5Cright%29%7D%7B2%7D%2B%5Cfrac%7B%5Cleft%28b%2Bd%5Cright%29i%7D%7B2%7D)
![M=\frac{\left(-2+3\right)}{2}+\frac{\left(-3+\left(9\right)\right)i}{2}](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B%5Cleft%28-2%2B3%5Cright%29%7D%7B2%7D%2B%5Cfrac%7B%5Cleft%28-3%2B%5Cleft%289%5Cright%29%5Cright%29i%7D%7B2%7D)
![M=\frac{-2+3+\left(-3+9\right)i}{2}](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B-2%2B3%2B%5Cleft%28-3%2B9%5Cright%29i%7D%7B2%7D)
![M=\frac{1+6i}{2}](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B1%2B6i%7D%7B2%7D)
![M=\frac{1}{2}+3i](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B1%7D%7B2%7D%2B3i)
Therefore, 1/2 + 3i is the midpoint between -2-3i and 3+9i.
Answer:
A and D
Step-by-step explanation:
Total ice cream bars sold = sum of chocolate sold , vanilla and strawberry ice-creams sold.
=(1/2)x2 + (6/11)x + 8 + (5/9)x2 + (2/3) +(1/3)x2 + 4x +(4/3) (Given in the question)
=(25/18)x2 + (50/11)x + 10 (Adding terms corresponding to x2,x ,constant respectively)
Difference in chocolate and strawberry bars =[ (1/2)x2 + (6/11)x + 8] - [(1/3)x2 + 4x +(4/3)]
= (1/6)x2 - (38/11)x +(20/3)
So, the correct options are A and D