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Nataly [62]
3 years ago
5

For questions 1-3, find the function that represents the relationship

Mathematics
1 answer:
Pavel [41]3 years ago
5 0

Answer:

1. y=3x   2. y= 5x+4     3. y= 9x-2

Step-by-step explanation:


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A ________ exists between two variables when the values of one variable are somehow associated with the values of the other vari
motikmotik
Correlation would be the correct answer
8 0
3 years ago
A rubber ball is dropped from the top of a hole. Exactly 20 seconds later, the sound of the rubber ball hitting bottom is heard.
gayaneshka [121]

9514 1404 393

Answer:

  4192.9 ft

Step-by-step explanation:

We assume your falling-distance formula is supposed to be ...

  s = 16t²

So, the time required to fall distance s is ...

  t = √(s/16) = (1/4)√s

The time required for sound to travel distance s is ...

  s = 1100t

  t = s/1100

Then the sum of the time for the ball to fall and the time for the sound to travel back is ...

  (1/4)√s + s/1100 = 20

  275√s = 22000 -s . . . . . multiply by 1100 and subtract s

  75625s = s^2 -44000s +484,000,000 . . . square both sides

  s^2 -119,625s +484,000,000 = 0 . . . . put in standard form

  s ≈ (1/2)(119,625 ±√12,374,140,625) = {4192.943, 115432.057}

Only the smaller of these two solutions makes any sense in this problem.

The hole is about 4192.9 feet deep.

_____

<em>Additional comment</em>

The distance equation for the falling object presumes a vacuum. The sound transmission presumes the presence of air, so the question setup is self-contradictory.

7 0
3 years ago
the profit of a business are RM 29,000. It is shared between two partners A &amp; B. If A receives 9/20 of the profit, how much
Aneli [31]
B earns 11/20 of the profit.

(20-9)/20 = 11/20.

If the actual value is needed. You could do it one of two ways.

1---> 29000*11/20 = 15,950


2---> 29000*9/20 = 13,050
               29,000 - 13,050 = 15,950
8 0
3 years ago
a researcher is conducting a study on local businesses. in order to create her sample, she uses the yellowpages and a dice. she
katrin2010 [14]

Her sample space is also the list of local businesses.

Sampling is a technique used in statistics when researchers choose a representative subset of a larger population and utilize that subset to carry out a study. Probability sampling and non-probability sampling are the two main types of sampling. Selecting the group from whom you will actually gather data for your study is the process of sampling. If you wanted to examine the perspectives of students at your university, for instance, you could interview a sample of 100 students. With the help of sampling, you can test a statistical hypothesis on the features of a population.

The yellow pages are used by the researcher to do research on neighborhood companies. As a result, her sample space also includes a list of nearby companies.  

Complete question: A researcher is conducting a study on local businesses. In order to create her sample, she uses the Yellowpages and a dice. She rolls the dice, and, depending on the number rolled, counts that many businesses down in the list to call. What is her sampling frame?

The list of local businesses in the Yellowpages.

All businesses within a $10 \mathrm{~km}$ radius.

The list of local businesses in the newspaper.

All businesses in the state she is located in.

The list of registered businesses in her area.

To read more about samplings, visit brainly.com/question/13287171

#SPJ4

5 0
1 year ago
HA=2-bA , solve the equation for A
yaroslaw [1]
HA + bA = 2
A(h+b) = 2
A = 2/h+b
7 0
2 years ago
Read 2 more answers
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