Answer:
This is a function because each x value has a different y value. If one of x values would of had two different y values then it would of not have been a function
Step-by-step explanation:
Answer:
X=12
Step-by-step explanation:
Add the two equations together and equate them to 180 due to the geometrical reason that angles on a straight line add up to 180.
10X-20+6X+8=180 (collect like terms)
10X+6X=180-8+20
16X=192 (Divide both sides by 16)
X=12
Hope that helps :)
Answer:
Population mean = 21
Margin of error = 4
Step-by-step explanation:
Given that
Lower bound of the population is 17
Upper bound of the same population is 25
The population mean, x-bar is calculated by saying
x-bar = (lower bound + upper bound)/2
x-bar = (17 + 25)/2
x-bar = 42/2
x-bar = 21
Margin of error for the confidence interval is gotten by
E = (upper bound - lower bound)/2
E = (25 - 17)/2
E = 8/2
E = 4
Thus, the mean is 21, while the error is 4
Answer:
A
Step-by-step explanation:
Essentially, to use the method of division the question is mentioning you need to divide 21 by 3/4. Use fraction rules to divide meaning (21*4/3). This gets you m + 12 = 84/3. If you simplify the right side you get 28. Thus, the final answer is the first option choice.
Hope this helped :)
