Answer:
14
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)(a^c) = a^(b+c)
__
You have ...
(x^3)(x^a) = x^17
x^(3+a) = x^17
Equating exponents, we get ...
3 +a = 17
a = 14
The missing exponent is 14.
Answer:
0.36427
Step-by-step explanation:
Mean = λ = 18 messages per hour
P(X = x) = (e^-λ)(λ⁻ˣ)/x!
P(X ≤ x) = Σ (e^-λ)(λ⁻ˣ)/x! (Summation From 0 to x)
But the probability required is that the messages thay come in an hour is between 15 and 20, that is, P(15 < X < 20)
P(15 < X < 20) = P(X < 20) - P(X ≤ 15)
These probabilities will be evaluated using a cumulative frequency calculator.
P(X < 20) = 0.65092
P(X ≤ 15) = poissoncdf(18, 15) = 0.28665
P(15 < X < 20) = P(X < 20) - P(X ≤ 15) = 0.65092 - 0.28665 = 0.36427.
You can use the Poisson distribution calculator here
https://stattrek.com/online-calculator/poisson.aspx
Answer:
y=1/2x+1
Step-by-step explanation:
one dot on the 1 on the y axis
then more one unit up and two units to the left
and then from the first point (0,1) go one unit down
and two to the right. then make the line with the three points
<em>Answer:</em>
<em>12000</em>
<em>Step-by-step explanation:</em>
<em>20% of 15000 is 3000.</em>
<em>So he will pay 12000.</em>
<em></em>
<em>Hope I helped you!</em>
<em></em>
Answer:
Any number other than 2
Step-by-step explanation:
First, solve the equation
4x +3 = 11
Subtract 3 on both sides
4x=8
Divide by 4 on both sides
x=2
Since 2 is the solution, any number other than 2 would make the equation false
Hope this helps! :)
