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liq [111]
3 years ago
12

Constant numerical value of y ÷ 3(4 - 2) + 5.5

Mathematics
1 answer:
faltersainse [42]3 years ago
4 0
Answer— 2/3 + 5.5
Your welcome
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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
How do you do this? algebra II
Pavel [41]
3^x=23\\
x=\log_323\approx2.85
6 0
3 years ago
Find the missing coordinates y+7x=1<br><br> (-1, )<br> (4, )
Pachacha [2.7K]

Answer:

(-1,8)

(4,-27)

Step-by-step explanation:

y+7x=1

Let x = -1 and find y

y+7(-1)=1

y -7 =1

Add 7 to each side

y-7+7 = 1+7

y = 8

(-1,8)

Let x = 4 and find y

y+7(4)=1

y +28 =1

Subtract 28 from each side

y+28-28 = 1-28

y = -27

(4,-27)

6 0
2 years ago
Find the value of x that makes m ∥ n .
Alla [95]

Answer:

60

Step-by-step explanation:

(2x+15)=135    They're corresponding angles so they equal/congruent

<u>      -15   -15</u>       Subtract 15 on both sides since you're looking for x

<u>2x</u> = <u> 120</u>       Bring down the remains and subtract 135 from 15

 2        2        Add 2 on both sides

x= 60            Divide.

3 0
3 years ago
Johnny paid $19 for a pair of jeans. It was originally $33. What percent discount did he receive?
Ber [7]

Answer:

Approximately 42.42%

Step-by-step explanation:

If you subtract 42.42% from 33 it equals approx 19.

4 0
3 years ago
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