Answer:




And then replacing we have this for the expected value:

And after do the math we got:

And then the expected value for this game is -0.79998 a negative result means NOT a win.
Step-by-step explanation:
For this case we can define the random variable X as the amount that we can win. We can find the expected value with the following formula:

And we have the following probabilities and possible values given:




And then replacing we have this for the expected value:

And after do the math we got:

And then the expected value for this game is -0.79998 a negative result means NOT a win.
Answer:
what do u mean by show work
Step-by-step explanation:
This is an arithmetic sequence, as there is a common difference of 21 between terms.
By using the formula, the 18th term of the sequence is
= 1st term + (18 - 1)(21)
= 15 + 17 * 21
= 372
Answer:
90 degrees. Answer B
Step-by-step explanation:
Two complementary angles, by definition, add up to 90 degrees. Answer B.