Answer:
a) It cannot be concluded at the 99% confidence level that there is actually a difference between the true mean comfortable room temperatures for the two groups.
Step-by-step explanation:
Our parabola open downward and therefore a is negative.
Explanation:
As value of a changes from positive to negative or from negative to positive, the direction of opening changes. For negative values of a we got negative parabolas that open downward. As the original formula y = x^2 we see that x^2 will always be positive because when you square a number it always gives positive value. Therefore the direction for which it will open, depends on value of a.
Cost of 8 oranges = $1
Cost of 1 orange = 1/8
Now, cost of 4 dozen (=48 orange) = 1/8 * 48 = 6
In short, Your Answer would be $6
Hope this helps!
Answer:
The answer would be 0
Step-by-step explanation:
Go to symbolab.com and just put the equation in
