Answer:
(a) False
(b)True
Step-by-step explanation:
(a) A factor in any experiment is a variable (independent) that you can control as you study the results obtained while changing its conditions .This means that the levels of the variable are set by experimenter as you perform the experiment.A factor can have two or more levels.These levels when combined, they form treatments.A factor is controlled by setting it to different levels,two or more to enable the researcher introduce different values of the factor to observe the trend in the results.Hence, set a factor to levels is very important.
(b)Randomization is when participants in an experiment are chosen to prevent bias.When randomization is applied, the participating groups will be similar in that there will be no accidental bias due to unbalance criterion.Additionally, selection bias that could arise due to underrepresented group will be eliminated.
Answer:
Explanation:
Please, see attached the chart corresponding to this question.
The<em> chart</em> is a pie chart that shows the percentage composition of the <em>expenses </em>and uses color to identify each item.
The items corresponding to<em> taxes</em> are:
- <em>Federal tax: 29%</em>
- <em>State tax: 6%</em>
All the other expenses are not taxes.
Add the two items that are taxes: 29% + 6% = 35%.
Hence, the expenses that are not taxes can be calculated by difference:
Answer:
Kadeem will take 0.166 h more to complete the course.
Step-by-step explanation:
The speed is the rate at which the distance changes, when the speed goes up the distance changes more quickly, therefore if the distance is the same and the speed is higher the one who will take longer is the one that has less speed. In this case the one who will take longer to drive the 25 miles is Kadeem, since he's driving at 50 mph. In order to calculate how much longer we need to calculate the time at which each of them complete the course, this is shown below:
time = distance/speed
For Kadeem:
time = 25/50 = 0.5 h
For Quinn:
time = 25/75 = 0.334 h
The difference between the is 0.5 - 0.334 = 0.166 h.
Where does that StartFraction ... mess come from? -- I've seen it in other questions.

Comparing that to the general quadratic formula

we see b=-10 (agreeing in both places) a=7 (two places), c=-2
Answer: 7x² - 10x - 2 = 0