x² + 5x - 6 can be expressed as (x + 6)(x - 1).
Answer:
0.6804
Step-by-step explanation:
Given that Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average.
Since each trial is independent and there are two outcomes, X no of good serves is binomial with n=6 and p =2/3
Required probability
= Prob that atleast four of 6 times good serve
=
=
Formula used:
P(X=r) =
<h3>
Answer: 2pi</h3>
2pi radians are equal to 360 degrees. After this point, the function f(x) = sin(x) repeats its values again. Each cycle is 2pi radians long.
Answer:
She answered 76 percent of the question correct.
Step-by-step explanation:
Convert fraction (ratio) 23 / 30 Answer: 76.6%