Answer:
B) maximum at 15
Step-by-step explanation:
Factor the leading coefficient from the first two terms.
-(x^2 +6x) +6
Add the square of half the x-coefficient inside parentheses and subtract the same quantity outside.
-(x^2 +6x +9) +6 -(-9)
-(x +3)^2 +15
Compared to the form
a(x -h)^2 +k
we find a=-1, h=-3, k=15. The negative vertical scale factor (a=-1) means the parabola opens downward. The vertex is located at (h, k) = (-3, 15).
The maximum value is 15.
Step-by-step explanation:
To determine if events are independent, one has to confirm if there's no relationship between the events.
Event A. Not shutting off the water in the kitchen sink.
Event B. Receiving a high water bill.
Both Events are related as Event B is proportional to Event A. This means they are not independent but rather dependent
Try this option:
only the 1-st way, where 25x+40x=x(25+40)... =260.
Another way to calculate it is 25*4+40*4=100+160=260.
answer: way 1.
Answer: There are no solutions.
Step-by-step explanation: x - 5/3 = x - 3/5
x + -5/3 = x + -3/5
x + -5/3 - x = x + -3/5 - x
-5/3 = -3/5
-5/3 + 5/3 = -3/5 + 5/3
0 = 16/15
