The mean is the unit of center that may be used to predict how many strokes will be needed to complete the ninth hole.
The data is almost symmetrical, making the mean the best option.
What is symmetrical data?
- Asymmetric communications refers to any system where, when averaged over time, the data speed or amount is different in one direction from the other.
- Asymmetry is defined as the lack of precise similarity between two pieces.
- A fiddler crab's body is asymmetrical, as evidenced by the fact that one of its claws is larger than the other.
- Absence of a standard unit of measurement between two things or amounts; incomprehensibility.
So the more about symmetrical visit.
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Wdym “these are the right answers”..?
The number of positive roots is the number of changes of signs there are, then decrease by 2 each time and stop when you get to 1 or 0
negative roots, sub every x with -x and reevaluate, count change of signs
decrease by 2 each time and stop when you get to 1 or 0
y=+2x⁵-x⁴-2x³+4x²+x-2
+,-,-,+,+,-
1 2 3
3 or 1 positive roots
replace x with -x ( baically flip all signs of odd powerd numbers)
y=-2x⁵-x⁴+2x³+4x²-x-2
-,-,+,+,-,-
1 2
2 or 0 negative roots
3 or 1 positive roots
2 or 0 negative roots
2nd option is answer
Answer:
Explanation:
Work backward:
1. 2x + 23 = 30
Start:
Multiply the equation by 2:
Subtract 30 from both sides
- 2x - 30 = 7 - 30
- 2x - 30 = -23
Add 23 and 30 to both sides:
2. 3x + 19.5 = 30
Start:
Add 6.5 to both sides:
Multiply by 3:
Distributive property:
3. (10x - 20)/ 5 = 3
Start:
Multiply by 10:
Subtract 20:
Divide by 5:
