Answer:
k=0 or k=9/10
Step-by-step explanation:
10k^2 - 10k- (-k) = - k- (-k)
10k^2-9k=0
k(10k-9)=0
k=0 or 10k-9=0
k=0 or k=9/10
If the numbers in the right column represent times, pp:qq is equivalent to pp+(qq/60). Your scatter plot would use the values
... (2011, 1.927), (2012, 1.930), (2013, 1.914), (2014, 2.001)
1. See attached for the scatter plot
2. The data points have a generally upward trend, so the correlation is positive.
3. Because the correlation is positive, the line of best fit will have a positive rate of change (slope).
Answer:
B
Step-by-step explanation:
We can't tell what size the page is now, because you never told us
what size it was before all the shenanigans started. All you gave us
was a couple of ratios.
And you didn't even tell us WHAT was increased and decreased ...
was it the length of the sides, or was it the area of the page ?
__________________________________________
If it was the length of the sides ...
Let's say the page was 8" high and 4" wide.
Increase lengths by 50% : Now it's 12" high and 6" wide.
Decrease lengths by 50% : Now it's 6" high and 3" wide.
The sides are now 3/4 as long as they started out,
and the area is 9/16 of what it started out.
