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3 years ago

Need help plz help me

Mathematics

1 answer:

forsale [732]3 years ago

4 0

8200? 82,000? 820,000?

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Order the ratios from least to greatest 6:3 13 to 4 19/2 15 to 10 8:2

Alik [6]

6:3 = 6/3 = 2

13 to 4 = 13:4 = 13/4 = 3.25

19/2 = 9.5

15 to 10 = 15:10 = 15/10 = 1.5

8:2 = 8/2 = 4

From the least to the greatest:

15 to 10 , 6:3, 13 to 4, 19/2

I hope this explains it.

8 0

3 years ago

In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control

lianna [129]

Answer:

The sample space for selecting the group to test contains 2,300 elementary events.

Step-by-step explanation:

There are a total of N = 25 aluminum castings.

Of these 25 aluminum castings, n₁ = 4 castings are defective (D) and n₂ = 21 are good (G).

It is provided that a quality control inspector randomly selects three of the twenty-five castings without replacement to test.

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

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

Compute the number of samples that are possible as follows:

${25\choose 3}=\frac{25!}{3!\times (25-3)!}$

$=\frac{25\times 24\times 23\times 22!}{3!\times 22!}\\\\=\frac{25\times 24\times 23}{3\times 2\times 1}\\\\=2300$

The sample space for selecting the group to test contains 2,300 elementary events.

6 0

3 years ago

on a certain day $1 is worth 30.23 Russian rubles Omar has $75 how many rubles will he get in exchange

Talja [164]

75 x 30.23= 2,267.25

8 0

2 years ago

Nancy bought a mobile phone marked at $720 at a discount of 20% and she had to pay 5% tax. If Nancy had to put 20% of what she h

Olenka [21]

Answer:

120.96

Step-by-step explanation:

4 0

2 years ago

I'm really confused on 6-26. How do you find the equation?

exis [7]

I know the B is 2 Sorry I don't know the A

6 0

2 years ago