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VladimirAG [237]
3 years ago
15

PLZZ HELP ME THIS IS A NO RETAKE QUIZ IT WOULD BE GREATLY APPRECIATED

Mathematics
1 answer:
MariettaO [177]3 years ago
4 0

Answer:122

Step-by-step explanation:

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Which of the following statements represents one of the differences between an experiment and an observational study?
svet-max [94.6K]

Answer:

Introducing a change to the subgroup

Step-by-step explanation:

Given there are four statements.  We have to find the one which represents one of the differences between an experiment and an observational study.

The answer is option 2. Introducing a change to the subgroup

Experimental and observational studies are both types of studies between which a number of differences can be identified. When conducting research studies,  various types of research in order to arrive are adopted according to the need.  

An experimental study is a study where the researcher has control over most of the variables.

On the other hand, an observation study is a study where the researcher cannot control any variable but merely observes the subject without controlling any variables.

3 0
3 years ago
Read 2 more answers
Plz help me what the coordinate points for each
krek1111 [17]

Answer:

A. (-4, -3)

B. (5, 3)

C. (-1, 3)

Step-by-step explanation:

Ok, bear with me, its been a while since I have done this so make sure you double check.

A. So, we already know where point A is(1,-3) and we need that to find B

It says we need a reflection which is basically mirroring it across the y-axis(note: if it were across the x-axis then this would turn out much differently.)

Its hard to explain but i will tell you that reflecting point A will give us (-1, -3)

Now we need to translate it 3 units to the left

<u>(-4, -3)</u>

B. Ok, next we have point C which is a reflection using the x-axis (now you will see how important it is to make sure you are reflecting in the right place.) Over the x-axis, will give us (1, 3).

Now we need to translate to the right... (5, 3)

C. Point D... we need to rotate it. Now, rotating is a little bit more work than reflecting and translating but its not hard.

since we are rotating 180 degrees then we are basically just turning it around halfway from 360...

A is (1, -3) so D would be (-1, 3)

Hope this helps :)

6 0
2 years ago
Write the equation of the line that is parallel to y = 1/2x - 8 and passes through the point (4, 10).​
ludmilkaskok [199]

Answer:

y=1/2x+8

Step-by-step explanation:

The slopes will be the same but the y-intercept will be different. I graphed out which equation will pass through (4,10) and also be parallel to y=1/2x-8.

5 0
3 years ago
Read 2 more answers
What is the answer to 10 - s when s = -3
Stells [14]


s=-3

<em /><em>10-s=?    </em><u>Substitute s:</u>

10-(-3)=10+3=13

10-s=13

Answer: 13

5 0
2 years ago
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The apartments in Brian's apartment house are numbered consecutively on each floor. The sum of his number and his next-door neig
e-lub [12.9K]
If sum of numbers (a) +(b) is 1419 and
(a)  and (b) are <span>neighbors , whe have:
a + b = 1419 and b-a = 1;
<=> </span>a + b = 1419  and  <span>a = b-1 ; 
so we have  b-1 + b = 1419 <=> 2b = 1420 <=> b=710 and a = 709
Answer: 710 and 709

</span>
8 0
3 years ago
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