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Helga [31]
3 years ago
9

I hope the picture is clear ^^can anyone please help me with this

Mathematics
1 answer:
nika2105 [10]3 years ago
7 0
Hopefully this is clear
t = x-xnull \\ and \\ t =  \frac{2(x - xnull- vnull}{a}

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A 2001 study by two researchers investigated an anti-poverty initiative in Venezuela called POVERTA. POVERTA gave money to poor
ANEK [815]

Answer:

1. This is a "RANDOMIZED CONTROLLED EXPERIMENT".

A randomized controlled experiment is a type of research study, were the researcher randomly select samples in other not to be biased. This samples are separated into two groups, which are the experimental and the controlled group.

2. The research has a treatment group and a controlled group.

A treatment group are those group that received some special treatment from the researcher, it can also be called the experimental group. According to the research, the treatment group are those who are in the POVERTA scheme. That is the 320 communities.

A controlled group are those group that were not given any special treatment, but are , separated and studied. According to the research the controlled group are those 185 communities

3. This research provides evidence that being in a community receiving POVERTA benefits is associated with a lower rate of childhood illness. Because after two years, it was noticed the children in the community that receives POVERTA has low rate of illness, than the children in a community that doesn't receive the benefits of POVERTA.

4. This study does not provide evidence that being in a community receiving POVERTA benefits causes a lower rate of childhood illness. Because the research did not involve treatment of illnesses and they is no experimental evidence that shows that POVERTA benefits is interrelated with illness, as illness involves the internal functions of human body.

5. Such study will be called a "RANDOMIZED CONTROLLED EXPERIMENT". Because their randomly isolated themselves, and the POVERTA treatment was not given to them. The researcher was not based in selecting them not to participate.

3 0
3 years ago
Given that triangle abc ~ def, solve for x <br><br> A.6<br><br> B.3 <br><br> C.2<br><br> D.4
kipiarov [429]

ABC and DEF are similar

so

AB/AC = DE/DF


30/24 = 5/x

30x = 24 * 5

30x = 120

x = 4


Answer

x = 4

6 0
2 years ago
Read 2 more answers
6.
denpristay [2]

Answer:

15n=135

Step-by-step explanation:

first, you need to know how much of the total amount is the money needed for soccer balls, to find this you take the amount of a soccer ball and multiple it by the amount of people

14×15=210

then you subtract that from the total amount to get the amount spent on jerseys.

345-210=135

to get the amount of each jersey you take 135 and divide by the amount of people

135÷15=9

4 0
3 years ago
A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. 95​% confidence interval that resu
Anastaziya [24]

Answer:

z= 1.70 Since the test statistic is less than the critical​ value, we can conclude that the average length of an online video is not more than 8 minutes

8 0
2 years ago
Someone to work out this sum in factorisation = 28-21w+14
Arisa [49]
14-21w i believed based on my learning
6 0
3 years ago
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