Answer:
y=-2x+7
Step-by-step explanation:
To find "c" put one of the points in the equation. Put$(3,1)$
$1=-2(3)+c$
$c=1+6=7$
Is there something wrong with the question?
Answer:
14.42
Step-by-step explanation:
17.00 x .80 20% off means price is 80% (or .80) of price
=13.6
13.6 x .06 = .82 sales tax
13.60 + .82 = 14.42 sales price plus sales tax
r value i.e Correlation between x value and y value = 0.769
=Standard deviation of the x-coordinate = 5.508
=Standard deviation of the y-coordinate = ?=k
Slope of line is given by formula
If slope of line is m, then
m =
m=
Substitute the value of k, i.e Standard deviation of the y-coordinate and then you can get the slope of line to three decimal places.
<span>There are 4 kings out of 52 cards.
So P(king) = 4/52 = 1/13
Odds against getting a king are 1 - P(king) = 1 - 1/13 = 12/13
hope this helps!</span>