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Aleksandr-060686 [28]
2 years ago
13

*HELP ASAP*

Mathematics
1 answer:
k0ka [10]2 years ago
5 0

Using unit concepts, it is found that:

  • a) Grams.
  • b) Grams.
  • c) Grams squared.
  • d) Grams squared.

-----------------------------

  • For a data-set, the standard deviation has the same unit as the data-set, both for the sample and the population.
  • The variance has the unit squared, both for the sample and the population.
  • For example, if the data-set is in metres, the standard deviation will be in metres while the variance will be in squared metres.

-----------------------------

In this question, the data-set is in grams.

  • The standard deviation, both for the sample and the population, in items a and b, will be in grams.
  • The variance, both for the sample and the population, in items c and d, will be in grams squared.

A similar problem is given at brainly.com/question/14524219

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I need help with this please
AnnZ [28]
Hi there! The answer is C.

The area of the square in the middle is the following:
length \: \times \: width \: = 5 \times 5 = 25
Hence, the area of the square is 25 cm^2.

The area of one triangle is the following:
0.5 \times base \: \times \: height \: = 0.5 \times 5 \times 8 = 20
Hence, the total area of the four triangles is 4 × 20 = 80 cm^2.

Therefore, the total area of the pyramid is 80 + 25 = 105 cm^2. The answer is C.
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3 years ago
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3. <br> Point C(9,-6) is dilated using a scale factor<br> of 2/3. What are the coordinates of C"?
bonufazy [111]

Answer:3.08e

Step-by-step explanation:mujwjwieekedkd

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An art class consists of 8 boys and 10 girls. The teacher
wolverine [178]

Answer: 14/285

Step-by-step explanation:

B = 10

G = 8

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8/20 * 7/19 * 6/18 = 14/285

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3 years ago
Please answer the following attachment down below.<br><br> I would greatly appreciate it if you did.
zepelin [54]

Answer:

34.63

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Pls help with all 4 questions, and show a step by step explanation (show how you set up the problems)
Ainat [17]
<h2>Answer:</h2>

<u>Question 10:</u>

21.75 ÷ 30 = 0.725

Move the decimal backwards 2 times

72.5

<em>Answer: </em>72.5%

<u>Question 11:</u>

Sales: $768

Commission Rate: 4%

Commission: $30.72

768 x 4 = 3,072

3,072 ÷ 100 = 30.72

<em>Answer:</em> $30.72

<u>Question 12:</u>

Selling Price: $39.98

Tax Rate: 4.5%

Sales Tax: $1.80

39.98 x 4.5 = 179.91

179.91 ÷ 100 = 1.7991

Then you round to the thousandths.

1.799

1.8

<em>Answer:</em> $1.80

<u>Question 13:</u>

20% x 141 = 28.2

141 + 28.2 = 169.2

<em>Answer:</em> $28.20 gratuity is added to the bill.

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2 years ago
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