Answer:
Yes, at a time t such that (√2)/2 ≤ t ≤ 2.
Explanation:
To answer the question
Therefore, where the domain of the function is the set of all real numbers x for which f(x) is a real number we have
For Chloe's velocity
Finding the boundaries of the function gives;
and 
At t = 1, we have 
We find the maximum point as follows;
From which we have;
or 
∴ 1 = 2·t² and from which t = (√2)/2
Hence the function C(x) is decreasing from t = (√2)/2 to t = 2
For Brandon
For 0 ≤ t ≤ 1, 1 ≤ B(t) ≤8 and for 1 < t ≤ 2, 8 < B(t) ≤ 1.5
1 ≤ f(x) ≤ 1.5
Given that the function B(t) is differentiable, therefore, continuous, there exists a point at which the function C(t) and B(t) intersects given that;
For 0 ≤ t ≤ (√2)/2, 0 ≤ C(t) ≤ 23.416 for (√2)/2 < t ≤ 2, 23.416 > C(t) ≥ 2
and for 0 ≤ t ≤ 0 1 ≤ B(t) ≤ 8 and for 1 < t ≤ 2, 8 > B(t) ≥ 1.5
Therefore, the curves intersect at in between (√2)/2 ≤ t ≤ 2.
Answer:
Part A:
<u>Encoding failure</u>: This applies to the the AP exam because if the terms are not consciously read and studied, it won’t be encoded, and it won’t be remembered. This influences failure on the exam, rather than success.
<u>Predictive validity</u>: Regarding the AP exam, the test is made to predict the future behaviour of the student within the course. Therefore, if the test score is high, the retention of content in the future should be higher than that of a person with a lower test score. The same can be said for the AP course or the AP practice tests. These resources are made to predict what the test score is most likely to be, if the test has predictive validity.
<u>Distributed practice</u>: This will influence success on the AP exam because it allows for better recall rather than recognition, so writing the portion will be more successful.
<u>Proactive interference</u>: This could influence failure on the AP exam because previously learned information such as learnings from biology class or chemistry class can interfere with the newly learned information from psychology, especially since these subjects can cross content.
Part B:
<u>Procedural memory</u>: In a performance task, procedural memory comes in handy because writing letters or typing is easy without thinking about it.
<u>Acetylcholine</u>: This can lead to failure on the performance task because procedural memory might be impaired or recognition of everyday material might exacerbate the difficulty of the already challenging task.
<u>Emotional intelligence</u>: Having high emotional intelligence would influence success in the performance task because it allows for greater creativity when thinking of issues about others and when solving issues.
Explanation:
Make sure to paraphrase and put into sentences with the DDAFC structure of an FRQ:
Define
Discuss
Apply- I provided this but make sure to paraphrase for academic integrity :)
Full Circle
Answer:
Because the confidence interval includes zero, the researcher can conclude the proportion of men and women who exercise regularly may be the same.
Explanation:
When constructing a two-proportion z-interval, it is important to look for the value zero. A value of zero in the interval shows there is no difference in the proportions between the two populations.
If the interval contains all positive numbers, it implies the true proportion for sample 1 is greater than that for sample 2. If the interval contains all negative numbers, it implies the true proportion for sample 1 is less than that for sample 2.
