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exis [7]
3 years ago
10

(3_4sin²a) (sec²_4tan²a) =(3-tan²a)(1-4sin²a)​

Mathematics
1 answer:
jonny [76]3 years ago
7 0

Answer:

Being male and preferring brand A are independent.

Because: if independent then P(male and brand A) = P(male) P(brand A) = 0.48 * 0.75 = 0.36 and that is true (= value in the table)  

P(male|brand A)=0.36/0.75=0.48 = P(male)

So the two answers are:

(1) "independent"

(2) =

Still stuck? Get 1-on-1 help from an expert tutor now.

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Alecsey [184]

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153.94 is your answer.

Step-by-step explanation:

I believe it would be the last one, but let me explain. So to find the area of a circle with just the diameter, the formula would be 1 /4 π d2. Which is one fourth times pie, multiplied with the diameter to the second power. So if we put 14 in the equation would look like this 1/4*π*14*2. So if we use this formula, we get 153.94. Or something close to that. I hope this helps! Good luck!! ;)

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3 years ago
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Step-by-step explanation:

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3 years ago
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Nimfa-mama [501]

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4 0
3 years ago
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