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3 years ago

a plastic bag contains 5 marbles. two of the marbles are red and 3 of the marbles are blue. without looking, what is the probabi

lity of pulling out a blue marble and then another blue marble?(Assume that you don't put the first blue marble back in the bag) write your answer as a fraction.

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

$|\Omega|=5\cdot4=20\\|A|=3\cdot2=6\\\\P(A)=\dfrac{6}{20}=\dfrac{3}{10}$

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find the volume of metal required to make a closed box of thickness 1 cm with external measurements 12 cm × 7 cm × 10

noname [10]

Answer:

The volume of the metal is:

$V_{t}=548\: cm^{3}$

Step-by-step explanation:

First, let's find the volume of the front face of the square:

$V_{1}=12*7*1=84\: cm^{3}$

The back face is the same, so we have:

$V_{2}=84\: cm^{3}$

The volume of the side faces will be:

$V_{3}=7*10*1=70\: cm^{3}$

$V_{4}=70\: cm^{3}$

And finally, the volume of the top and bottom side faces of the box will be:

$V_{5}=12*10*1=120\: cm^{3}$

$V_{6}=120\: cm^{3}$

The total volume of the metal will be:

$V_{t}=V_{1}+V_{2}+V_{3}+V_{4}+V_{5}+V_{6}$

$V_{t}=2(84)+2(70)+2(120)$

$V_{t}=548\: cm^{3}$

I hope it helps you!

7 0

3 years ago

If a new sweater sells for $53 find the total cost if you are charged 5% sales tax. Round your answer to the nearest cent

Flauer [41]

Answer:

$55.65

Step-by-step explanation:

you would find 5% of 53 which is $2.65 and then add that to your original price so 53 + 2.65 = 55.65

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3 years ago

Sombody please help me out.

Nata [24]

Answer:

B. (x, y) --> (x, y + 5)

Step-by-step explanation:

Y is up and down

X is left and right

So assuming that Y is north she needs to go 5 units up Y

(x, y + 5) = (x, 5y)

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3 years ago

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Natasha_Volkova [10]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Please help<br> find BC in this

ryzh [129]

<span>Which angle do you want?</span>

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4 years ago