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elixir [45]
3 years ago
13

Can someone tell me the answer please I’m marking brainlist

Mathematics
2 answers:
seraphim [82]3 years ago
8 0

Answer:

a and c

Step-by-step explanation:

Sergio039 [100]3 years ago
7 0

Answer:

a & c

Step-by-step explanation:

I think I’m sorry if I’m not correct

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How do you turn four and six hundredths into a decimal
Ivahew [28]

it would be 4.06 because 6/100 is 0.06 so 4.06 is your answer.

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4 years ago
To study the effectiveness of vitamin C in preventing colds, a researcher recruited 200 volunteers. She randomly assigned 100 of
Paul [167]

Answer:

The claim made by the researcher lacks the validity on basis of reasons as indicated in the explanation.

Step-by-step explanation:

The claim made by the researcher is not valid on basis of following reasons:

  1. Interacting variables are not mapped accurately. The additional variables as the health status of the volunteers, eating and fitness habits are not considered in the consideration. This results in a in complete validation.
  2. The placebo effect is not catered accordingly. As the half of the volunteers are taking nothing, this is not the direct influence of the placebo and thus double-blinded testing for placebo effect is to be ensured in future experiments.
  3. The environmental effects are not considered as the effect under study is dependent on the environmental effects, thus the claim is biased and the generalization is not valid.
5 0
3 years ago
A boy is flying a kite and has let out 300 feet of string. He notices that the angle the string makes with the ground is 38 degr
Bingel [31]

Answer:

height = 184.7 feet

Step-by-step explanation:

sin 38 = height/300

0.6157 = height/300

height = 184.7 feet

5 0
3 years ago
What is the shape of the following distribution? {9, 10, 10, 11, 11, 12, 12, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16,
babunello [35]
The shape of the distribution with the following data set you gave is skewed to the left or negatively skewed. This is because the frequency of each number increases as its value increases. 
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3 years ago
What z-score value separates the top 10% of a normal distribution from the bottom 90%?​?
nata0808 [166]
The 90th percentile corresponds to Z ≈ 1.28155.

7 0
3 years ago
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