Mathematics, 16.09.2019 16:10 ud938727

Atelephone number contains 10 digits, including a 3-digit area code. bob remembers the area code and the next 5 digits of the number. he also remembers that the remaining digits are not 0, 1, 2, 5, or 7. if bob tries to find the number by guessing the remaining digits at random, the probability that he will be able to find the correct number in at most 2 attempts is closest to which of the following?
a. 1/625
b. 2/625
c. 4/625
d. 25/625
e. 50/625

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 20:00, brunovillarreal6576

Find the slope of the line passing through a pair of points

Answers: 2

continue

Mathematics, 21.06.2019 21:30, b00n4l1f3

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Answers: 2

continue

Mathematics, 22.06.2019 01:10, hellicuh

Evaluate 8x2 + 9x − 1 2x3 + 3x2 − 2x dx. solution since the degree of the numerator is less than the degree of the denominator, we don't need to divide. we factor the denominator as 2x3 + 3x2 − 2x = x(2x2 + 3x − 2) = x(2x − 1)(x + 2). since the denominator has three distinct linear factors, the partial fraction decomposition of the integrand has the form† 8x2 + 9x − 1 x(2x − 1)(x + 2) = correct: your answer is correct. to determine the values of a, b, and c, we multiply both sides of this equation by the product of the denominators, x(2x − 1)(x + 2), obtaining 8x2 + 9x − 1 = a correct: your answer is correct. (x + 2) + bx(x + 2) + cx(2x − 1).

Answers: 3

continue

Mathematics, 22.06.2019 03:30, Kameon

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55

Answers: 1

continue

You know the right answer?

Atelephone number contains 10 digits, including a 3-digit area code. bob remembers the area code and...