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Tasya [4]
3 years ago
6

I need a lot of help, can someone pls help me?

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0

Answer: yes, just tell me the problem

Step-by-step explanation:

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Work out an estimate for 456.2-51<br> _______<br><br> 0.0512
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It equals 7958.1. hope it helps
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3 years ago
The Copy Shop has made 20 copies of a document for you. Since the defective rate is 0.1, you think there may be some defective c
Pepsi [2]

Answer:

Binomial

There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.

Step-by-step explanation:

For each copy of the document, there are only two possible outcomes. Either it is defective, or it is not. This means that we can solve this problem using the binomial probability distribution.

Binomial probability distribution:

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem

Of the 20 copies, 2 are defective, so p = \frac{2}{20} = 0.1.

What is the probability that you will encounter neither of the defective copies among the 10 you examine?

This is P(X = 0) when n = 10.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{10,0}.(0.1)^{0}.(0.9)^{10} = 0.3487

There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.

8 0
3 years ago
What expression is equivalent to 5(2x-7)
yarga [219]

Answer:10x-35

Step-by-step explanation:

5(2x-7)

Clear bracket

10x-35

6 0
3 years ago
A math textbook has 6 pages of instruction for every 2 pages of practice problems. How many pages of instruction does it have fo
gayaneshka [121]

Answer:

Unit rate is found simply by dividing.

6 pages of instruction/2 pages of practice problems = 3 pages of instruction per page of practice problems

Step-by-step explanation:

6 0
3 years ago
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Probability against a spinner landing on a green space if the spinner had 8 sections &amp; 3 of them are green
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Probability AGAINST a spinner landing on green ...
if 3 are green, then 5 are not green...
5/8 = 0.625 rounds to 0.63 = 63% <===
6 0
3 years ago
Read 2 more answers
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