First let's review how to expand this!
(ax+b)^2=a^2*x^2+2abx+a^2
In this case
(2x^2+1/2)^2=2^2*x^2+2*1/2*2x+(1/2)^2
=4x^2+2x+1/4
Done!
Answer:
B. 2/9
Step-by-step explanation:
2/3*1/3=2/9
there is a 2/3 chance of landing on grey and a 1/3 chance of landing on an even number so to get the chance of both just multiply them together
Answer:
n>12
Step-by-step explanation:
Answer:
The experimental probability of landing on heads is 0.3
Step-by-step explanation:
We are given the following in the question:
Number of heads = 30
Number of tails = 70
Talia said the probability of getting heads is
.
She evaluated the wrong probability.
She did not considered total number of trials in the experiment.
Formula for probability:
Probability of heads =

The experimental probability of landing on heads is 0.3
it's just a blank black screen