Answer:
0.54,0.8,0.368
Step-by-step explanation:
Given that according to a survey published by ComPsych Corporation, 54% of all workers read e-mail while they are talking on the phone.
Prob for persons who read email while talking on the phone = 54% = 0.54
Prob for persons who read email while talking on the phone to write to do lists = 0.20
Assuming that these figures are true for all workers, if a worker is randomly selected, the probability that
a. The worker reads e-mail while talking on the phone and writes personal "to-do" lists during meetings.

b. The worker does not write personal "to-do" lists given that he reads e-mail while talking on the phone.

c.The worker does not write personal "to-do" lists and does read e-mail while talking on the phone.

Answer:
140
Step-by-step explanation:
8 per day
17 days
8*17 = 136 soccer matches in the tournament
136 rounded to the nearest 10 = 140
The recursive formula

is telling you that the next term in the sequence is five times the previous one, minus 3.
So, if we start with
, we have to multiply it by 5 and subtract 3 to get the next:

And similarly we can obtain all the next terms:



A computer discounted at 30% off is less expensive.
First: 1000*.8 = 800
800*.9 = $720
Second: 1000*.7 = $700
Answer:
Below
Step-by-step explanation:
● x^2 + 11x + 121/4 = 125/4
Substract 125/4 from both sides:
● x^2 + 11x + 121/4-125/4= 125/4 -125/4
● x^2 + 11x - (-4/4) = 0
● x^2 +11x -(-1) = 0
● x^2 + 11 x + 1 = 0
This is a quadratic equation so we will use the determinanant (b^2-4ac)
● a = 1
● b = 11
● c = 1
● b^2-4ac = 11^2-4*1*1 = 117
So this equation has two solutions:
● x = (-b -/+ √(b^2-4ac) ) / 2a
● x = (-11 -/+ √(117) ) / 2
● x = (-11 -/+ 3√(13))/ 2
● x = -0.91 or x = -10.9
Round to the nearest unit
● x = -1 or x = -11
The solutions are { -1,-11}