Telephone numbers are preceded by a 3-digit area code (e.g. 437). In the following questions, any...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Telephone numbers are preceded by a 3-digit area code (e.g. 437). In the following questions, any digit from {0, 1, 2, 3, 4, 5, 6, 7, 8, 9) can be used unless otherwise stated. How many area codes are possible if: a. the first digit must not be 6? b. the first digit cannot be 0 or 1, the second digit cannot be 3 or 9, and the third digit must be 9? c. the first digit cannot be 0 or 1, the second digit must be 3 or 6, and the third digit must be 9? d. the digit 3 must not be used? Telephone numbers are preceded by a 3-digit area code (e.g. 437). In the following questions, any digit from {0, 1, 2, 3, 4, 5, 6, 7, 8, 9) can be used unless otherwise stated. How many area codes are possible if: a. the first digit must not be 6? b. the first digit cannot be 0 or 1, the second digit cannot be 3 or 9, and the third digit must be 9? c. the first digit cannot be 0 or 1, the second digit must be 3 or 6, and the third digit must be 9? d. the digit 3 must not be used?
Expert Answer:
Answer rating: 100% (QA)
afor the first digit must not be 6 There are 10 options for the first digit 0 to 9 excluding 6 There ... View the full answer
Related Book For
Posted Date:
Students also viewed these mathematics questions
-
answer all questions as instructed below. make sure you have attended all questions .Comparative Architectures (a) Describe the organisation of a two-level branch predictor that makes use of a global...
-
answer all questions as instructed below. attend all questions. 4 Computer Vision (a) Explain why such a tiny number of 2D Gabor wavelets as shown in this sequence are so efficient at representing...
-
Write a Fortran program that creates an integer array with values -123, -4, 5, 67, 890, and 12345. Prints out the array in several formatted ways. a. Print each element, on its own line, using a...
-
The chief financial officer (CFO) of Padilla Corporation requested that the accounting department prepare a preliminary statement of financial position on December 20, 2015. He knows that certain...
-
Why is damage control important?
-
George Oppenheimer, an agent for Wellington Farms of Massachusetts, Inc., had contacted Mark Kiriakou from the Capital Area Food Bank regarding an order for frozen turkey meat. In an exchange of...
-
Exhibits 1.261.28 of Integrative Case 1.1 (Chapter 1) present the financial statements for Starbucks for 20052008. Starbucks explains several components of its income during those years in the...
-
L = {w| L2 = {w| Two languages L1 and L2 are defined by symbols = {0, 1}, written as w contains 00 as a sub-string and the length of w is even number} w begins with 0 and ends with 1} (i) Write two...
-
SEMO Inc. has a division located in Spain and another in the U.S. The Spanish division produces a part needed for the product made by the U.S. division. There is substantial excess capacity in the...
-
What is the future value in 3 years of $2,000 invested in an account with a stated annual interest rate of 8 percent, compounded semiannually?
-
Modern physics Calculates, in joules and electron volts, the energy of a light particle with a wavelength of 1 1 5 0 nm . Show working.
-
A force of 16 N and a force of 24 N are acting on an object at the same point. Find the magnitude and direction of the resultant for each of the three cases that follow: Case A: when the two forces...
-
Determine the derivative for the following functions: a) y = -e* c) f(x) = (7)(x) [3] e) f(x)=sin(tan x) [2] b) f(x)= x(5) d) f(x) = sin(cos(x)) f) f(x) = e cost x
-
a. Plot the appropriate polarization curves for the following half cell reactions and determine the corrosion potential and corrosion rate (current density) assuming activation control of both the...
-
Analytic Procedures, Systems Procedures, and Actors Procedures. From a world view perspective, how are situations similar? How are they different. As it relates to arbnor and Bjerke in the book...
-
1. What are some current issues facing Saudi Arabia? What is the climate for doing business in Saudi Arabia today? 2. Is it legal for Auger's firm to make a payment of $100,000 to help ensure this...
-
Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. Use a 0.05 significance level. Best Actresses 22...
-
Winning-team data were collected for teams in different sports, with the results given in the accompanying table. Use a 0.05 level of significance to test the claim that home/visitor wins are...
-
Listed below are systolic blood pressure measurements (in mm Hg) obtained from the same woman. Is there sufficient evidence to conclude that there is a linear correlation between right and left arm...
-
Consider the dynamic system, a mass, spring and damper structure, shown in Figure 2.2. (a) Draw a free-body diagram for the dynamic system (b) Derive the Input-Output model of the dynamic system k...
-
Two connected cars with an applied input force \(u(t)\) and negligible rolling friction can be represented by a translational mechanical system as shown below. (a) Draw the free-body diagrams of this...
-
Consider an RLC circuit consisting of a resistor \((R)\), an inductor \((L)\), and a capacitor \((C)\), connected in series, as depicted in Figure 2.4. Derive the Input-Output model of the network....
Study smarter with the SolutionInn App