If A ∆ B = A × (A + 2B) = A² + 2AB, then
• 1 ∆ B = 1 + 2B
• 4 ∆ (1 ∆ B) = 4 ∆ (1 + 2B) = 24 + 16B
• 2 ∆ (4 ∆ (1 ∆ B)) = 2 ∆ (24 + 16B) = 100 + 64B
The correct answer is 100% Analyze.
Assess - Analyze
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Answer:
v = 38 m/s d = 40 m time taken
Explanation:
All the sampling methods used in the given survey are; convenience, systematic, and voluntary sampling.
<h3>What is the sampling method used?</h3>
From the question, we see that the surveyor selects the twentieth student who enters the building.
Now, the student do not enter the building to be surveyed but instead for other reasons and as such the researcher takes advantage of that and selects them. This is a form of convenience sampling.
It is also a form of systematic sampling because the researcher selects every twentieth student and not any other.
Lastly, it is a form of Voluntary sampling because the students selected to participate in the survey are free to choose whether to participate in the survey or not.
Read more about Sampling Methods at; brainly.com/question/9910540
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I would say it has to be
C
