Answer:
f(- 3) = - 5
Step-by-step explanation:
Given the point (- 3, - 5)
where x = - 3 is the input and y = - 5 is the output
The function can be represented by
y = f(x), that is
f(- 3) = - 5
I would say C is the answer
Answer:
A . About 95% of all random samples of 50 students from this population would result in a 95% confidence interval that covered the population mean number of hours of sleep per day.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
95% CI from a sample of 50 students is (6.73, 7.67).
This means that we are 95% sure that the population mean is in this interval, that is, about 95% samples of 50 would contain the population mean, which is given by option A.
<em>Answer:</em>
<em>x = 10</em>
<em>Step-by-step explanation:</em>
<em>Hi !</em>
<em>2(x - 3) = 14</em>
<em>2x - 6 = 14</em>
<em>2x = 14 + 6</em>
<em>2x = 20</em>
<em>x = 20 : 2</em>
<em>x = 10</em>
<em>Good luck !</em>
