Idk this one sorry loooolloooooo
Answer:
-$1.8
or loss of $1.8
Step-by-step explanation:
Given the following parameters, we have
The probability of winning $4 is 3/16
The probability of winning $7 is 2/16
The probability of losing $5 is 11/16
E(X) = (4 * 3/16) + (7 * 2/16) + (-5 * 11/16)
= 12/16 + 14/16 - 55/16
= -29/16
= -1.8
Hence, your expected net "winnings" would be -$1.8. That's an expected loss of $1.8.
Cos = adj/hyp
hyp = AB
cos(25) = 7/AB
AB = 7.7
Answer:
8(r+2)
hope this helps
have a good day :)
Step-by-step explanation:
Okay so...
x² = 5x + 24 move it, so one side equals zero.
x² - 5x - 24 =0 factors of 24 is 3 and 8 when you subtract 8 from 3 you get -5.
(x+3)(x-8)
x+3= 0 or x-8=0
x= -3 or x=8
b. 2x² - 5x + 1=0
quadratic formula = -b +-√b²-4ac / 2a
a= 2 b= -5 c=1
-(-5) +-√(-5)² - 4(2)(1) / 2(2)
5+-√25 - 8 / 4
=5 +- √17 / 4
x= 5/4 + √17 / 4 or x= 5/4 - √17/4
i couldn't find the plus-minus sign that why there's (+-)
i hope this helps! :)
