Answer:
The roots of the equation are x=-3 and x=-2.5
Step-by-step explanation:
<u><em>The correct quadratic equation is</em></u>
2x^2+11x+15=0
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
The roots of the equation are x=-3 and x=-2.5
Answer:
the probability is equal to 0.0123
Step-by-step explanation:
given,
Probability of hitting a Target by A (p)= 1/3
Probability of not hitting a Target by A (q) = 1 - 1/3
= 2/3
given, problem follows negative binomial distribution
let X be the probability of hitting the target for first time in third throw
X follow NBin. (k = 3 , p = 1/3)
=
=
= 0.0123
hence, the probability is equal to 0.0123
Answer:
I aint never seen to pretty bestfreinds one of them always ugly
Step-by-step explanation: