2 years ago

Is each expression a polynomial? Drag and drop each expression to the correct box.

Mathematics

1 answer:

Scorpion4ik [409]2 years ago

7 0

Answer:

see attached

Step-by-step explanation:

A polynomial is the sum of terms with variables having positive integer exponents. Coefficient numbers need not be integers.

The term 3/x^4 = 3x^-4 is not such a term, so the expression containing it is not a polynomial.

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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

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2 years ago

How to write in standard form twenty-nine billion, thirty-two million

katrin2010 [14]

29,032,000,000 is the standard form

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2 years ago

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ale4655 [162]

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2 years ago

There are 7.55 grams of sugar in 5 servings of strawberries. How many grams of sugar are in a single serving of strawberries?

balandron [24]

Answer:

1.51

Step-by-step explanation:

Divide 7.55 by 5 and it equals 1.51

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2 years ago

Read 2 more answers

Suppose a 95% confidence interval for μ turns out to be (1,000, 2,100). give a definition of what it means to be "95% confident"

IRISSAK [1]

Answer:

In repeated sampling, 95% of the intervals constructed would contain the population mean.

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