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icang [17]
3 years ago
14

Help help please help help me please I’m so confused ignore what I wrote btw

Mathematics
1 answer:
natulia [17]3 years ago
6 0

Answer:

Step-by-step explanation:

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Negative numbers don’t have real square roots since a square is either positive or 0
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How to solve this equation by getting a value and b value
goblinko [34]

Answer:

a=±5

Step-by-step explanation:

25=5^2

Given that,  x^2−10x+25=x^2−10x+5^2

Identity: a^2−2(ab)+b^2=(a-b)^2

Here, a=x and b=5

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Which of the following is the correct SI unit to use in measuring the mass of a boulder. Please help!!
LenKa [72]

For this case, the first thing you should know is the meaning of the acronym S.I.

S.I .: International system

The unit for the mass of any object in the international system is:

m: [kilograms]

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Answer:

the correct SI unit to use in measuring the mass of a boulder is:

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3 years ago
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A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the
aliina [53]

The number of standard version download and high-quality download is 870 and 490 respectively.

<h3>Number of downloads of the high-quality version</h3>

let

  • Number of high-quality download = y
  • Number of standard version = x

x + y = 1360

2.9x + 4.1y = 4532

From (1)

x = 1360 - y

Substitute x = 1360 - y into (2)

2.9x + 4.1y = 4532

2.9(1360 - y) + 4.1y = 4532

3944 - 2.9y + 4.1y = 4532

- 2.9y + 4.1y = 4532 - 3944

1.2y = 588

y = 588/1.2

y = 490

Substitute y = 490 into (1)

x + y = 1360

x + 490 = 1360

x = 1360 - 490

x = 870

So therefore, number of standard version download and high-quality download is 870 and 490 respectively.

Learn more about simultaneous equation:

brainly.com/question/16863577

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7 0
1 year ago
Sammy the Sailor swears entirely too much. The following probability distribution shows the number of times Sammy swears per day
malfutka [58]

Full question attached:

Answer and explanation:

A) B2*B10: cell B2 and B10 have the values regular swear costs and number of swears respectively and we need to multiply these two values to get our answer

B) =IF(B10>10,(B10-10)*B3,0): Sam is supposed to pay an extra $2 for swear words over 10 and so we check if his swear words are above 10 and if they are we find out how many they are by subtracting 10 from them and then we multiply the value gotten by the cost for extra swear words($2)

C) =IF(B10<5,B10*B4,0): here we check if swear words are less than 5 and if they are we multiply number of swears words less than by 5 by the cost ($0.50)

D) F10=C10+D10+E10: to calculate total money in jar(F10), we simply add up regular cost(C10), extra cost(D10) and refund(E10)

6 0
3 years ago
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