Answer:
i dont get this why is it crossed out
Step-by-step explanation:
I say it is 10% of 20$ and 30% of 10$ and 40% of 1$ and 20% of 5$
Step-by-step explanation:
Let T be the event that she hot the target and W be the event that there was a gust of wind.
P(T | W) = 0.4
P(T | W') = 0.7
P(W) = 0.3
P(W') = 1 - 0.3 = 0.7
a) P(W T) = P(W) x P(T | W)
= 0.3 x 0.4
= 0.12
b) P(T) = P(W T) + P(W' T)
= 0.12 + 0.7 x 0.7
= 0.61
c) P(she hits the target exactly once in two shots) = P(hits the target on first shot and misses on the second) + P(misses the target on first shot and hits on the second)
= 0.61 x (1-0.61) + (1-0.61) x 0.61
= 0.4758
d) P(W' | T') = P(T'W')/P(T') [Bayes' theorem]
= [0.7 x (1-0.7)]/[0.7 x (1-0.7) + 0.3 x (1-0.4)]
= 0.5385
First of all
x^2 +10x - 18
use
x = (-b plus or minus (<span>√<span></span></span>(b^2-4ac)))/2a
you will get
(x+5−(<span>√<span><span><span>43)</span></span><span></span></span></span>)(x+5+(<span>√<span><span><span>43</span></span><span>))</span></span></span>
Y = -2m -1 is your equation