Answer: Choice A
s = 10k + 6(5)
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Reason:
k = number of adults
10k = cost for all the adults (at $10 per ticket)
5 = number of children
6(5) = cost for all the children ($6 per ticket)
10k + 6(5) = total cost for all adults and children
s = total cost in dollars
s = 10k+6(5)
Answer:
a
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given


Solving (a): The mean
The mean of a uniform distribution is:

This gives:



Solving (b): The standard deviation
The standard deviation is:

This gives:





It decreases by -.4 over 1
(x-4)² + (x-2)² = x²
(x² - 8x + 16 ) + (x² - 4x + 4) = x
2x² -12x + 20 = x
2x²-12x + 20 - x = 0
2x² - 13x + 20 = 0
(2x-5) (x-4) = 0
2x-5 = 0
2x = 5
x = ⁵/₂
x-4 = 0
x = 4
so x₁ = ⁵/₂ , and x₂ = 4