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Readme [11.4K]
3 years ago
9

What is 7-10•7÷7? I need help​

Mathematics
2 answers:
Alona [7]3 years ago
4 0

Answer:

-3

Step-by-step explanation:

Use the order of operations.

Since there are no parentheses, we can skip straight to multiplication and division.

7 - 10 • 7 ÷ 7

7 - (10 • 7 ÷ 7)

7 - (70 ÷ 7)

7 - (10)

Now you can subtract:

7 - 10

And continue to simplify until you get your answer.

-3

zmey [24]3 years ago
3 0
Do pemdas the answer all together is = 3
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Rewrite log44=1 in exponential form.
kirza4 [7]

Answer:

The exponential form of \log_{4} 4 = 1 is 4 = 4^{1}.

Step-by-step explanation:

After some research in the web, we find that correct statement is:

Rewrite \log_{4} 4 = 1 in exponential form.

We obtain its exponential form by using the definition of logarithm:

4^{\log_{4} 4} = 4^{1}

4 = 4^{1}

6 0
3 years ago
Thirty percent of the CFA candidates have a degree in economics. A random sample of three CFA candidates is selected. What is th
Komok [63]

This is an example of a random variable that follows Bernoulli distribution.

Whenever you perform n experiments, with probability p of success, the provability of havin ksuccesses is

P(X=k)=\displaystyle\binom{n}{k}p^k(1-p)^{n-k}

In this case, you have n=3 (you choose a sample of 3 candidates), p=0.3 (30% of candidates have a degree in economics) and we want k to be at least one.

One way to solve this is to consider that

P(X\geq 1)=P(X=1)+P(X=2)+P(X=3)

But it is much quicker to observe that

P(X\geq 1)=1-P(X

And we have

P(X=0)=\displaystyle\binom{3}{0}0.3^0\cdot 0.7^{3}=1\cdot 1\cdot 0.7^3

So, the probability that at least one of them has a degree in economics is

1-0.7^3 = 0.657

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3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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