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Lapatulllka [165]
3 years ago
9

I dont understand this, could someone help? thanks!

Mathematics
1 answer:
zalisa [80]3 years ago
7 0

Answer:

Step-by-step explanation:

Sort the data:

64, 69, 88, 88, 91, 92, 93, 94, 95, 97, 97, 100

Key: 09|1 = 91

06| 4, 9

08| 8, 8

09| 1, 2, 3, 4, 5, 7, 7

10| 0

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ArbitrLikvidat [17]

Answer: average time in minutes that it will take to drive from campus to workplace

Step-by-step explanation:

The dependent variable refers to the variable that the researcher is testing or measuring in an experiment. Let's say for example, we want to know the impact of reading on the examination score of a student. In this case, the dependent variable will be the examination score of the student since that's what we're measuring.

With regards to the question, the dependent variable is average time in minutes that it will take to drive from campus to workplace.

7 0
3 years ago
Among 9 electrical components exactly one is known not to function properly. If 3 components are randomly selected, find the pro
kozerog [31]

Answer:

P=0.66

Step-by-step explanation:

We know that Among 9 electrical components, exactly one is known not to function properly. If 3 components are randomly selected.

We calculate the probability that all selected components function properly.

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C_3^9=\frac{9!}{3!(9-3)!}=84

We calculate the number of favorable combinations:

C_3^8=\frac{8!}{3!(8-3)!}=56

Therefore the probability is:

P=\frac{56}{84}\\\\P=0.66

6 0
4 years ago
If the ratio of 7 less than a number and 7 more than the number 2, what is the number?
snow_lady [41]

Answer:


Step-by-step explanation:

I assume you mean "if the ratio of 7 less than a number and 7 more than the number is 2".

Let x be the number.

Ratio is division.

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Multiply by (x+7) on each side:

x-7=2(x+7) = 2x+14

Add 7 on each side

x=2x+21

Subtract 2

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x=-21

5 0
3 years ago
Which of the following phrases represents n ÷ 5? A.the quotient of a number and five B.a number decreased by five C.the sum of f
krok68 [10]

Answer:

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4 0
3 years ago
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irinina [24]

Answer:

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Step-by-step explanation:

The distances have the ratio ...

  (Q -P) = (2/3)(R -P)

  Q = P +(2/3)R -(2/3)P = (2R +P)/3

  Qy = (2Ry +Py)/3 = (2·0 +7)/3 = 7/3

8 0
3 years ago
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