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3 years ago

All per-unit concepts rely on ratios, meaning (A. Division, B. Multiplication) , to provide a type of measurement.

Mathematics

2 answers:

WITCHER [35]3 years ago

8 0

Answer:

Option: A is the correct answer.

( A. Division)

Step-by-step explanation:

We know that the speed of a person ;if a person travels 10 km in 1 hour is given as:

10 Kilometer per hour ( km/hr).

Since, the speed is defined as:

$Speed=\dfrac{Distance}{Time}$

( so, the speed is the ratio of distance to time i.e. we can say that distance divided by time)

So, the unit All per-unit concepts rely on ratios, meaning division.

melomori [17]3 years ago

5 0

The answer is A.) Division

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2 1/2+x=5 1/3 PLEASE HELP

erastova [34]

Answer:

Step-by-step explanation:

2 1/2 + x = 5 1/3 Change the mixed numbers to improper fractions

5/2 + x = 16/3 The lowest common multiple is 6. Multiply by 6

5*3 + 6x = 16*2

15 + 6x = 32 Subtract 15 from both sides.

6x = 32 - 15

6x = 17 Divide by 6

6x/6 = 17/6

x = 2 5/6

Check

5/2 + 17/6 = 16/3

15/6 + 17/6 = 32/6

32/6 = 32/6 The question checks.

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Answer:

Step-by-step explanation:

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3 years ago

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Answer: A
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The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniq

antoniya [11.8K]

Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

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b) Two-sample t-test

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2 years ago

Witch expression is the factorization of x2+10x+21

Alenkasestr [34]

Answer:

x^2 +x(7+3) +21

x^2 +7x + 3x +21

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(x+7) (x+3)

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3 years ago