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) =
We can use completing the square.We add 16 and subtract 7 to both sides. Now we get m^2+8m+16=9. The left sides becomes (m+4)^2=9. Taking the square root of both sides and subtracting 4 we get -1 and -7.
Answer: x>- 7/3
Step-by-step explanation:
Solve for x by simplifying bot sides of the equation, then isolating the variable.
Sara's results probably do have a higher mean, if we take into account how William is way more willing to pay 20 dollars. Honestly, I think you got your chosen answers right! Just my opinion, as someone inexperienced.
Answer:
second box must be 192in^3
Step-by-step explanation:
its a cube so length width height is all the same therefore,
4×4×4= 64
now u need a 2nd box 3 times volume of 1st all u need to do is multiply
64×3= 192
