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Eddi Din [679]
3 years ago
9

In a controlled experiment, the group not subjected to a change in the independent variable, and used for comparison with the gr

oup receiving the experimental change, is the __________ group.
Mathematics
1 answer:
Whitepunk [10]3 years ago
3 0

Answer:

So the group not receiving the change is the Control group.

Step-by-step explanation:

In a controlled experiment there will always be a minimum of two groups.

When there two groups in a controlled experiment one of the groups is the controlled group which is not exposed to the independent factor or independent variable being analysed.

The other group is the experimental group which does receive the experimental change.

The participants to each group are randomly placed so that the experiment can be said to be fair.

So the group not receiving the change is the Control group.

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Anastaziya [24]

Answer:

points for me too pls

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Plzz show workings while giving the answer​
sukhopar [10]

Answer:

\huge\boxed{\sf 4\ minutes\ 1.5\ seconds}

Step-by-step explanation:

3 minutes 59.1 seconds = (3*60) + 59.1 seconds = 180 + 59.1 seconds

=> 239.1 seconds

\rule[225]{225}{2}

4 minutes 3.8 seconds = (4*60) + 3.8 seconds = 240 + 3.8 seconds

=> 243.8 seconds

\rule[225]{225}{2}

4 minutes 1.6 seconds = (4*60) + 1.6 seconds = 240 + 1.6 seconds

=> 241.6 seconds

\rule[225]{225}{2}

Mean = Sum of data / No. of Data

Mean = 239.1 + 243.8 + 241.6 / 3

Mean = 724.5 / 3

Mean = 241.5 seconds

<u>In Minutes and Seconds:</u>

= 241.5 / 60 = 4.025 minutes

= 4 minutes + 0.025 minutes

= 4 minutes + (0.025 * 60) seconds

= 4 minutes 1.5 seconds

\rule[225]{225}{2}

Hope this helped!

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8 0
3 years ago
Write (-2 - 5i) - (-4 + 2i) as a complex number in standard form.
harkovskaia [24]

Answer:

2 -7i

Step-by-step explanation:

(-2 - 5i) - (-4 + 2i)

Distribute the minus sign

(-2 - 5i) + 4 - 2i

Combine like terms

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2 -7i

4 0
4 years ago
Which is the simplified form of this expression? <br><br> (2x+3) (x-6)-2x^2+3x+30
docker41 [41]
-6x + 12

To find this answer, follow these steps:

First, multiply 2x + 3 and x - 6 using either the FOIL method or the box method. This should get you the answer of 2x^2 - 9x - 18

This should now replace the 2x + 3 and x - 6

So with that, you should have this currently:

2x^2 - 9x - 18 - 2x^2 + 3x + 30

Now, combine like terms:

The 2x^2 cancels each other out. After that, combine -9x and 3x to get -6x. Then -18 and 30.

This should leave you with the final answer of -6x + 12

Hope this helps!
8 0
3 years ago
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vlabodo [156]

Answer:

3/2 is the slope

Step-by-step explanation:

find the negative inverse to give the perpendicular slope

本题已由中国数学会官方解答(现有会员:3人)

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3 years ago
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