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Dahasolnce [82]
3 years ago
13

Can someone please help me with this math question?

Mathematics
1 answer:
mash [69]3 years ago
8 0
3b+3s will be the answer
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DB is a diameter of circle C. KAis a tangent line to circle C at point A.
Arte-miy333 [17]

Answer:

BAD is 67°

ABC is 90°

Step-by-step explanation:

ABC is 90 due to the diameter rule in circle theorem

If you need any other help alert me

5 0
3 years ago
What is the probability that the sample mean life span of 64 calculators from Caseo will exceed the sample mean life span of 81
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Answer:

it would be 64-81  than answer devide by 6.

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2 years ago
Solve the equation for x.
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D

Step-by-step explanation:

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3 years ago
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Let X be the number of Heads in 10 fair coin tosses. (a) Find the conditional PMF of X, given that the first two tosses both lan
inn [45]

Answer:

Follows are the solution to the given point:

Step-by-step explanation:

For option A:

In the first point let z be the number of heads which is available on the first two trails of tosses so, the equation is:

P(X=k | z=2 ) = \begin{pmatrix} 10-2\\ k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k}

                         = \begin{pmatrix} 8\\k-2\end{pmatrix} (\frac{1}{2})^{k-2} (\frac{1}{2})^{10-k} \ \ \ \ \ \ \ \ \  \ \\\\

                                                                                                       k= 2,3..........10For option B:

P(X=k | X \geq 2 ) =  \sum^{10}_{i=2}  \begin{pmatrix} 10-i\\ k-i\end{pmatrix} (\frac{1}{2})^{k-i} (\frac{1}{2})^{10-k}

                                                                                                k= 2,3, 4.........10

8 0
3 years ago
You play a game that involves drawing two numbers from a hat. There are 25 pieces of paper numbered 1 to 25 in the hat. Each num
Sergeu [11.5K]

Answer:so it’s 5

Step-by-step explanation:

It’s 2 divided by 10 = 5

3 0
3 years ago
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