69 - 3a = 0
69 - 3a (-69) = 0 (-69)
-3a = -69
-3a(/-3) = -69(/-3)
a = 23
hope this helps
Answer:
P(2)=0.256
Step-by-step explanation:
We know that Nancy has noticed that 20 trucks pass by her apartment daily (24 hours). We conclude that for 1 hours, pass 20/24=5/6 trucks.
We calculate how many trucks pass for 3 hours:
3 · 5/6= 15/6=2.5=λ
We use a Poisson distribution:
P(k)=\frac{λ^k · e^{-λ}}{k!}
For 2 trucks we have that is k=2. We know that is λ=2.5
We caclulate the probability
P(2)=\frac{2.5² · e^{-2.5}}{2!}
P(2)=0.256
Answer:
D.
Step-by-step explanation:
Actually, you are correct! Cause, all the following
expressions are equal to 1/64. (An alternative form would be
0.915625 and 2^-6) except for 4^5/4^2 which equals to just 64.
Answer:
If its width is w, which expression gives the perimeter of the rectangle in terms of w? A. 2(5/2 w) + w B. 5/2 w + w C. 3 w + 10/2 D. 6
Step-by-step explanation:
there you go !
The answer is 15 because the perimeter is just all the sides added up, so 5x3