Answer:
16.9
Step-by-step explanation:
Answer:
Step-by-step explanation:
We can use normal aproximation, assuming that the random variables are a lot of that means the sample size is large.
![P(x>105) = P(z>\frac{105-100}{1})=P(z>5)](https://tex.z-dn.net/?f=P%28x%3E105%29%20%3D%20P%28z%3E%5Cfrac%7B105-100%7D%7B1%7D%29%3DP%28z%3E5%29)
Using the normal distribution table,
P(z>5) = 0.00005
Hence, we can conclude that the probability that the stock’s price will exceed 105 after 10 days is very small.
Hope this helps!
166.7 may be the answer but the question is very confusing
Answer:
She will dive 30 meters below sea level
Step-by-step explanation:
0 is the sea level, so that means 0-30 meaning she will go 30 meters below sea level.
Answer:
![\large\boxed{(t\times s)(x)=4x^3-28x^2+3x-21}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%28t%5Ctimes%20s%29%28x%29%3D4x%5E3-28x%5E2%2B3x-21%7D)
Step-by-step explanation:
![s(x)=x-7\\t(x)=4x^2+3\\\\(t\times s)(x)=t(x)\times s(x)\\\\\text{Substitute:}\\\\(t\times s)(x)=(4x^2+3)(x-7)\\\\\text{use FOIL:}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(t\times s)(x)=(4x^2)(x)+(4x^2)(-7)+(3)(x)+(3)(-7)\\\\=4x^3-28x^2+3x-21](https://tex.z-dn.net/?f=s%28x%29%3Dx-7%5C%5Ct%28x%29%3D4x%5E2%2B3%5C%5C%5C%5C%28t%5Ctimes%20s%29%28x%29%3Dt%28x%29%5Ctimes%20s%28x%29%5C%5C%5C%5C%5Ctext%7BSubstitute%3A%7D%5C%5C%5C%5C%28t%5Ctimes%20s%29%28x%29%3D%284x%5E2%2B3%29%28x-7%29%5C%5C%5C%5C%5Ctext%7Buse%20FOIL%3A%7D%5C%20%28a%2Bb%29%28c%2Bd%29%3Dac%2Bad%2Bbc%2Bbd%5C%5C%5C%5C%28t%5Ctimes%20s%29%28x%29%3D%284x%5E2%29%28x%29%2B%284x%5E2%29%28-7%29%2B%283%29%28x%29%2B%283%29%28-7%29%5C%5C%5C%5C%3D4x%5E3-28x%5E2%2B3x-21)