A building contractor cut a 3 1/4 foot piece off a 12 foot piece of wood. The remaining piece of wood was then cut into 7 equal
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Answer:
The sum of five scores that is not the median is, 336
Step-by-step explanation:
Average defined as the the sum of the observation to the total number of the observation.
Given: The sum of the five scores is 420
Then, by definition of average;
Average of five distinct score =
It is also, given that the average of five distinct scores has the same value as the median of the five scores.
⇒Median of five scores = 84
Since, scores are distinct, therefore
Sum of all scores that is not the median = Sum of five scores - median = 420-84 = 336
therefore, the sum of five scores that is not the median is, 336
We know that is a parabola, concave up, with vertex in the origin
So, we may use three horizontal lines for our purpose: any horizontal line above the x axis will intersect the parabola twice. The x axis itself intersects the parabola once on the vertex, while any horizontal line below the x axis won't intercept the parabola.
Here's the examples:
- The horizontal line
intercepts the parabola twice: the system
is solved by
- The horizontal line
intercepts the parabola only once: the system is
which yields
which is a repeated solution
- The horizontal line
intercepts the parabola only once: the system is
which yields
which is impossible, because a squared number can't be negative.