<h3>
Answer: 5/19</h3>
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Explanation:
There are A = 10 red cards out of B = 10+10 = 20 cards total.
A/B = 10/20 = 1/2 represents the probability of picking a red card.
After that card is selected, there are C = 10 black cards out of D = 20-1 = 19 cards left. The fraction C/D = 10/19 represents the probability of picking a black card where we did not put the first red card back.
Multiply the two fractions we found.
(A/B)*(C/D) = (1/2)*(10/19) = 10/38 = 5/19 is the probability of getting the first card that is red and the second card that is black.
Reference the image below if you need to.
We start at red point (0,0) and reflect across blue line x= -3.
This puts the point equidistance away on the opposite side at blue point (-6, 0).
That point is then reflected across green line y= -3,
and ends up at
green point
(-6, -6).
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Answer:
-2/5
Step-by-step explanation:
Formula of the Slope
m = (y2 - y1)/ (x2 - x1)
(x1 , y1) = (1, 7)
(x2, y2) = (6, 5)
put values
m = (5 - 7) / (6 - 1)
m = -2 / 5
Answer:
1/500 is answer.............
