If AABC = ADEC, ZB = 44º and ZE = 4x A B С E x = [?]
1 answer:
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Answer:
a) 0.1091
b) 0.9994
c) 0.5886
Step-by-step explanation:
X = the number of fish out of 20 that die after 24 hours
x = 0, 1, 2, . . . , 20
X~ Binomial (n= 20, p =0.20)
P(14 survive) = P(X = 6)
= =0.1091
Similarly we can find out
P(at least 10 survive) = P( X <= 10 ) = (Using technology) = 0.9994
P(at most 16 will survive) = P(X <= 16) = (Using technology) = 0.5886
When two variables are inversely proportional the relation between them can be written as:
Here, k is the constant of proportionality and is always equal to the product of the two variables. So using the given values of z and x, we can find k first.
The constant of proportionality for the given inverse proportion comes out to be 2. Using the value of k in the equation, we get:
We have to find the value of z when x=28. So replacing x by 28, we get:
Thus, rounding of to nearest thousand the value of z comes out to be 0.071 if x is equal to 28.