3 years ago

Need help with 15 and show the work

1 answer:

4 0

Answer:

Step-by-step explanation:

In 2 hours they wash 8 cars total so...

The extra time is 15 mins for 2 cars

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Sedaia [141]

x^6 + 10ax^3 + 2ax^3 + 20a^2

(x^3 + 10a)(x^3 + 2a)

answer: (x^3 + 10a)(x^3 + 2a)

Hope it helps :)

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3 years ago

Novosadov [1.4K]

The answer to this is 9.22

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4 years ago

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:

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

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

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

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

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

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4 years ago

SpyIntel [72]

Answer:

Step-by-step explanation:

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3 years ago

marysya [2.9K]

Base x height of each of the blocks and then add them together.

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4 years ago