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nikitadnepr [17]
3 years ago
15

What is the length of CD?

Mathematics
1 answer:
Eduardwww [97]3 years ago
6 0

Answer:

Step-by-step explanation:

Standard CDs have a diameter of 120 millimetres (4.7 in) and can hold up to about 80 minutes of uncompressed audio or about 700  MiB of data. The Mini CD has various diameters ranging from 60 to 80 millimetres (2.4 to 3.1 in); they are sometimes used for CD singles, storing up to 24 minutes of audio, or delivering device drivers.

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What is 449,650 rounded to the nearest ten thousand?
Alona [7]

Answer:

450,000

Step-by-step explanation:

The ten thousand digit is 4 and if we compare it to 9, it is bigger then 5 therefore it is rounded up and you get the answer of 450,000

3 0
2 years ago
4x+2y=10 <br> X-y=13 <br> Write in (x,y)
Bad White [126]

Answer:

(x = 6, y = -7)

Step-by-step explanation:

Solve the following system:

{4 x + 2 y = 10 | (equation 1)

x - y = 13 | (equation 2)

Subtract 1/4 × (equation 1) from equation 2:

{4 x + 2 y = 10 | (equation 1)

0 x - (3 y)/2 = 21/2 | (equation 2)

Divide equation 1 by 2:

{2 x + y = 5 | (equation 1)

0 x - (3 y)/2 = 21/2 | (equation 2)

Multiply equation 2 by 2/3:

{2 x + y = 5 | (equation 1)

0 x - y = 7 | (equation 2)

Multiply equation 2 by -1:

{2 x + y = 5 | (equation 1)

0 x+y = -7 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 12 | (equation 1)

0 x+y = -7 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 6 | (equation 1)

0 x+y = -7 | (equation 2)

Collect results:

Answer:  {x = 6 , y = -7

5 0
3 years ago
Jina has scored 76, 85, and 86 on her previous three tests. What score does she need on her next test so that her average (mean)
Scilla [17]
Hello There!

Follow through these steps:
77 x 4 = 308
76 + 85 + 86 = 247
308 - 247 = 61.

She needs to score 61.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
3 0
3 years ago
What is 2,168.433 rounded to the nearest mile?
olga nikolaevna [1]

Answer:

Suggestion 13 is a correction of the Constitution of California ordered during 1978, through the drive interaction. The drive was endorsed by California electors on June 6, 1978. It was maintained as established by the US High Court on account of Nordlinger v. Hahn, 505 U.S. 1.Proposition 13 is an amendment of the Constitution of California enacted during 1978, by means of the initiative process. The initiative was approved by California voters on June 6, 1978. It was upheld as constitutional by the United States Supreme Court in the case of Nordlinger v. Hahn, 505 U.S. 1.

8 0
2 years ago
Read 2 more answers
From the top of a cliff, which is 120 meters above the water, tha angle of depression of a boat on the water is 18°. How far is
harina [27]
To find how far the boat is from the bottom of the cliff is you’ll use tan;

Tan18degrees=120/x

x=120/tan18degrees

x=369m
4 0
3 years ago
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