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3 years ago

13

A bucket contains 5 green tennis balls and 2 yellow tennis balls. Tony removes 2 tennis balls with replacement, from the bucket

shown. What is the probability that tony will choose a yellow tennis ball then a green tennis ball?

1 answer:

mario62 [17]3 years ago

4 0

The probability that he will choose a green tennis ball is 1/5. the probability that he will choose a yellow one is 1/2. Hope this helps

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1) complete the special right triangle<br> what is length of BD<br> what is length of BC

Arada [10]

Answer:

$BD = 4$

$BC =4\sqrt 3$

Step-by-step explanation:

Given

The attached triangle

Required

Find BD and BC

Solving BD

Considering angle at D, we have:

$\cos(D) = \frac{Adjacent}{Hypotenuse}$

$\cos(60) = \frac{BD}{8}$

Solve for BD

$BD = 8 * \cos(60)$

$\cos(60) = 0.5$ So:

$BD = 8 * 0.5$

$BD = 4$

To solve for BC, we make use of Pythagoras theorem

$CD^2 = BC^2 + BD^2$

This gives

$8^2 = BC^2 + 4^2$

$64 = BC^2 + 16$

Collect like terms

$BC^2 =64-16$

$BC^2 =48$

Take square roots

$BC =\sqrt{48$

Expand

$BC =\sqrt{16*3$

Split

$BC =\sqrt{16}*\sqrt 3$

$BC =4\sqrt 3$

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3 years ago

cleaner recommends mixing 1½ cup of cleaner for every 12 cups of water. What is the ratio of cleaner to water in simplest form?

lubasha [3.4K]

Answer:

1/8

Step-by-step explanation:

First and foremost, you should note that to make the cleaner, it is 1.5/13.5 cups of cleaner produced for every 12 cups of water, thus making 1.5/12 the ratio. Next, we must simplify this to get 1/8.

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Sergio039 [100]

51.2 h = 839.68

h = 839.68 / 51.2

h = 16.4

So, your answer is 16.4

Hope this helps!

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