Answer:
13
Step-by-step explanation:
i think 13 is the answer seeing that she lost 8 point,gained 5 points and they want you to find the sum of the points she lost and gained.. therefore you add since a sum is an answer you get after adding.
8+5=13
I hope this helps
Answer:
The coordinate pairs of Point B are (5, 4)
Step-by-step explanation:
To get to point B, you would move 5 units to the right, and then 4 units up. You will end up with (5, 4)
Hope this helps!
Answer:
$1.46
Step-by-step explanation:
Required cards for winning :
1's, 2's and 3's
There are 4 cards of each in a total of 52 cards ;
Therefore, number of winning cards ;
(4 * 3) = 12 cards
Hence,
P(winning) = 12 / 52 = 3 / 13
P(not winning) = 1 - 3 /13 = (13 - 3) / 13 = 10/13
Earning (X)
Amount earned for winning = $43
Amount lost for not winning = $11
X ___ $43 ______ - $11
P(X) _ 3/13 _______ 10/13
Expected value, E(X) = ΣX*P(X)
Σ(X) = (43 * 3/13) + (-11 * 10/13)
E(X) = 9.9230769 - 8.4615384
E(X) = 1.4615385
E(X) = $1.46
You multiply all the sides to find the value of x
He only multiplied 6 by 5, and forgot the r to get 30+r=96. The correct solution is 30 + 6r = 96, or 6r=66. Divide both sides by 6 to get r = 11.