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BigorU [14]
2 years ago
9

4y + 3q - 5q^3 PLS ANSWER ASAP

Mathematics
1 answer:
Ilya [14]2 years ago
6 0

Answer:

4y+q(3-5q^2)

Step-by-step explanation:

common taking from 3q-5q^3

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Anyone know the area??
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8 0
3 years ago
slader Suppose that 8% of all bicycle racers use steroids, that a bicyclist who uses steroids tests positive for steroids 96% of
d1i1m1o1n [39]

Answer:

P = 0.4812

Step-by-step explanation:

First, we need to use here two expressions and then do the calculations.

The first one is the conditional probability which is:

P(B|A) = P(A∩B)/P(A)   (1)

The second expression to use has relation with the Bayes's theorem which is the following:

P(D|C) = P(C|D)*P(D) / P(C|D)*P(D) + P(C|d)*P(d)   (2)

Now, the expression (2) is the one that we will use to calculate the probability of a selected random bicyclist who tests positive for steroids.

So, in this case, we will call C for positive and D that is using steroids and d is the opposite of d, which means do not use steroids.

Then, the probabilities are the following:

P(D) = 8% or 0.08

P(C|D) = 96% or 0.96

P(C|d) = 9% or 0.09

P(d) = 1 - 0.08 = 0.92

With these data, let's replace in expression 2

P(D|C) = 0.96 * 0.08 /0.96 * 0.08 + 0.09*0.92

P(D|C) = 0.0768 / 0.1596

P(D|C) = 0.4812 or 48.12%

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3 years ago
At Mountain Park Middle School, there are 250 seventh-grade students. Currently, 32% of those students are in
sergij07 [2.7K]
A =250 - (250 x 0.32)
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3 years ago
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