Answer:
Please the question do not correlate with the answer. i will give explanation just based on the question.
Step-by-step explanation:
Question: They found β (Beta) = −0.39 for foreign-language anxiety and 0.29 for academic achievement. what does this mean?
Answer: According to Onwuegbuzie et al 1999 in the multiple regression analysis to understand anxiety and learning foreign language This means that People who have lower levels of anxiety about learning a foreign language have higher levels of achievement in foreign language, from their results they were able to correlate this.
Question 2, though not stated but relates to the options given :The beta for the predictor variable of perceived scholastic competence was positive and statistically significant. Why couldn't you say that perceived scholastic competence improves foreign language achievement?
Answer---The temporal precedence is not established and there may be another variable that accounts for the relationship.----d
therefore, we cannot say perceived scholastic competence improves foreign knowledge because there may be other various contributing variables apart from scholastic competence that accounts for the relationship. Merely using scholastic competence to correlate foreign language achievement is still blurry.
The answer is 4(x+3) is greater than or equal to 28 or
4(x+3)≥28
Just use derivatives:
f'(x)= .48x-.96 = 0, x = 2, since the coeff of x^2 is +, this is a minimum
x=0 1989, so x = 2 is 1991! :)
Answer:
D) (0,9.5) and (10,1.5)
Step-by-step explanation:
a line of best fit is a line that is drawn through the data points on the scatter plot. Option D is the only answer that draws a linear line through the data points.
Option A makes a short line above the points. if the line is not through the points, it doesn't work
Option B is drawing a positive line (as in it's increasing) and therefore cannot work
Option C draws a line below the points and does not represent the line of best fit for this scatter plot
Using an exponential function, it is found that the multiplier that would allow you to predict the population of bacteria after 2 hours is of 9.
<h3>What is an exponential function?</h3>
An exponential function is modeled by:
In which:
In this problem, the bacteria triples every hour, hence the rate of change is b = 3, and the equation is:
Hence, after 2 hours:
Which means that the multiplier is of 9.
More can be learned about exponential functions at brainly.com/question/25537936
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