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kozerog [31]
3 years ago
7

Given: x + 2y = -6. Solve for y.

Mathematics
2 answers:
zavuch27 [327]3 years ago
7 0

Answer:

The answer is option 3.

Step-by-step explanation:

The steps are :

x + 2y =  - 6

2y =  -x - 6

y =  \frac{ - x - 6}{2}

Drupady [299]3 years ago
7 0

Answer: choice #3

x + 2y = -6

2y = -6 - x      [ subtract x from both sides ]

y = (-6 - x)/2   [ isolate y ]

y = (-x - 6)/2 [ rearrange numerator ]

The answer choice that matches this is the third one, i hope this helps! :D

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Explain what is wrong with each of the following randomization procedures, and describe how you would do the randomization corre
zlopas [31]

Answer:

Kindly check explanation

Step-by-step explanation:

A.)

The problem with the here is that we might have introduced bias into our sample by failing to randomize the assignment of gender. By pacing the male gender in the treatment group and females into the control group, this might spring up a spurious association in our experiment as a result of a possible confounding variable, gender. Therefore, assignment of subject shouldn't be on the basis of gender.

2.)

Using a coin toss in placing subjects into groups will give a good random assignment, however, since only ten subjects are available and of which 5 will be placed into each group, there is no certainty that there will be equal number of heads and tails during the 10 flips. Alternatively, a random selection of the name of the 10 subjects could be chosen from a raffle.

3.)

Each batch of rat might be homogenous and hence will affect our experiment and definitely our conclusion. It would be best to assign rats from each batch to all treatment groups in other to obtain a good random design

8 0
2 years ago
Roselyn is driving to visit her family, which live 150 150150 kilometers away. Her average speed is 60 6060 kilometers per hour.
Sauron [17]

Answer:

She can go 120 km before she runs out of fuel

It will take 2 hours.

Step-by-step explanation:

150 km is the distance

60 km/ h is the speed

The gas tank is 20 liters

We can go 6 km per liter

Fuel costs .60 dollars per liter

We need to determine how far she can go on a tank of gas

20 liters * 6 km / liter = 120 km

She can go 120 km before she runs out of fuel

120 km  = 60 km/ h  *  x hours

Divide each side by 60

120/60 = x

2 hours

8 0
3 years ago
Please help me I need to turn in tomorrow please help me
Monica [59]

Answer:

<em>Answer: A. 0.2</em>

Step-by-step explanation:

<u>Probability</u>

The circle graph shows the distribution of the makeup of the Riverside Municipal Choir.

The total number of choir sections is: 8+10+10+12=40

To calculate the probability of a member chosen at random comes from the alto section, we use the formula:

\displaystyle P=\frac{8}{40}

Calculating:

P = 0.2

Answer: A. 0.2

7 0
3 years ago
(20+80 divided by 2x8) divided [(54 divided by 9+14)divided by 4]
lesya692 [45]

Answer:

80

Step-by-step explanation:

Let's write out the equation:

8(20+80/2)/[(54/9+14)/4]

For the first part we get 8(100/2)

Then 50x8

Then 400

For the second part we have (6+14)/4 as we divide 54 by 9. PEMDAS

Then 20/4

Then 5

So our final answer is 400/5 which is 80.

Hope this helps!

7 0
3 years ago
The benefit of these systems is that they might make a driver aware of an object ahead well before the driver could see it using
hichkok12 [17]
What’s the question?
8 0
3 years ago
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