3 years ago

How many cubes with an edge length of 1/3 inch are needed to build a cube with an edge length of 1 inch?

Mathematics

1 answer:

Alik [6]3 years ago

7 0

27 cubes are needed because you'd need a 3x3x3 cube

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Write as an improper fraction 7 2/5

Nana76 [90]

Answer:

37/5

Step-by-step explanation:

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3 years ago

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

andre [41]

Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Step-by-step explanation:

We need to find the probability that you will get exactly 4 tails, if you flip a fair coin 7 times.

This is the combination question.

The total combinations will be: 2^7=128

Now, finding number of ways we can get exactly 4 tiles:

We will use the formula:

$^nC_k=\frac{n!}{k!(n-k)!}$

in our given question, n= 7, k= 4

Putting values:

$^nC_k=\frac{n!}{k!(n-k)!}\\^7C_4=\frac{7!}{4!*3!}\\ ^7C_4=\frac{7*6*5*4!}{4!*3!}\\ ^7C_4=\frac{7*6*5}{6}\\ ^7C_4=35$

So, Probability that you will get exactly 4 tails, if you flip a fair coin 7 times is: $\frac{35}{128}$

Keywords: Probability

Learn more about Probability at:

#learnwithBrainly

7 0

3 years ago

What value of x makes this equation true?-80=20+x

Svet_ta [14]

Answer:

50 i think

Step-by-step explanation:

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3 years ago

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What is 3 times the sixth power of 10

sergey [27]

3000000...........
10^6 =1000000 (3) = 3000000

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3 years ago

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Stacy uses 6 cups of sugar to make 120 brownies how many cups of sugar will she use to make 360 brownies?

oksian1 [2.3K]

Answer:

18 cups of sugar

Step-by-step explanation:

Step 1:

120 ÷ 6 = 20

Step 2:

360 ÷ 20

Answer:

Hope This Helps :)

8 0

3 years ago

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