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Determine whether each of these sets is countable or uncountable. For those that are countably infinite, exhibit a one-to-one correspondence between the set of positive integers and that set. (a) all bit strings not containing the bit 0 (b) all positive rational numbers that cannot be written with denominators less than 5 (c) the real numbers not containing 0 in their decimal representation (d) The real numbers containing only a finite number of 1s in their decimal representation
General
4 months ago
It is known that diskettes produced by a cer- tain company will be defective with probability .01, independently of each other. The company sells the diskettes in packages of size 10 and offers a money-back guarantee that at most 1 of the 10 diskettes in the package will be defective. The guarantee is that the customer can return the entire package of diskettes if he or she finds moreIf someone buys 3 packages, what is the probability that he or she will return exactly 1 of them?
General
4 months ago
The scheduled arrival time for a daily flight from Boston to New York is 9:25 am. Historical data show that the arrival time follows the continuous uniform distribution with an early arrival time of 9:07 am and a late arrival time of 9:47 am. a. After converting the time data to a minute scale, calculate the mean and the standard deviation of the distribution. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) b. What is the probability that a flight arrives late (later than 9:25 am)? (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
General
4 months ago
Equal amounts are invested at 2%, 7%, and 9% annual interest. If the three investments yield a total of $792 annual interest, find the total investment.
General
4 months ago
WeeeeeBeeSEGEDESELEBESEDEESESPSSolve for x using the quadratic formula.x2 - 2x+5 = 0
General
4 months ago
A bunch of neighborhood kids went on a hoke through the nature center. The total mileage they walked was 16 2/3 miles. If each kid contributed 4 1/6 miles to the hike, how many kids went on the hike?
General
4 months ago
-5 2/3- (-6 1/5)+ 1 7/12Show how please
General
4 months ago
How many positive integers less than 1000 a) aredivisibleby7? b) are divisible by 7 but not by 11? c) are divisible by both 7 and 11? d) are divisible by either 7 or 11? e) are divisible by exactly one of 7 and 11? f) aredivisiblebyneither7nor11? g) havedistinctdigits?
General
4 months ago
Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects irregularities in the payroll system, and orders an inspection of a random sample of vouchers issued since January 1, 2006. A sample of ten vouchers is randomly selected, without replacement, from the population of 2,000 vouchers. Each voucher in the sample is examined for errors and the number of vouchers in the sample with errors is denoted by x. If 20% of the population of vouchers contains errors, the standard deviation of x is ______?
General
4 months ago
2x - 5y + z = 53x + 2y - 2 = 174x - 3y + 2z = 17?
General
4 months ago
Angelica was at target and saw that a pair of slippers was $15. She also noticed that there is a 30% off sale on all slippers. What is the cost (sale price) of the slippers after the discount?
General
4 months ago
In a poll of 1000 adults in July 2010, 540 of those polled said that schools should ban sugary snacks and soft drinks. Complete parts a and b below. a. Do a majority of adults (more than 50%) support a ban on sugary snacks and soft drinks? Perform a hypothesis test using a significance level of 0.05.State the null and alternative hypotheses. Note that p is defined as the population proportion of people who believe that schools should ban sugary foods.
General
4 months ago
What is the solution to the equation1+1
General
4 months ago
4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total cost? Show all your work and label all your answers.all your answers.
General
4 months ago
Mr. lee drive 8 miles from his house to Parkside Parkside is 4 miles south of Springfield from Parkside he drove 3 miles to Springdale then he drove 20 miles from Springdale to Brookville how far did Mr. Lee Drive in all
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4 months ago
The two-way table shows the number of houses on the market in the Castillos’ price range. A 6-column table has 4 rows. The first column has entries 1 bathroom, 2 bathrooms, 3 bathrooms, total. The second column is labeled 1 bedroom with entries 67, 0, 0, 67. The third column is labeled 2 bedrooms with entries 21, 6, 18, 45. The fourth column is labeled 3 bedrooms with entries 0, 24, 16, 40. The fifth column is labeled 4 bedrooms with entries 0, 0, 56, 56. The sixth column is labeled Total with entries 88, 30, 90, 208. What is the probability that a randomly selected house with 2 bathrooms has 3 bedrooms
General
4 months ago
From a plane flying due east at 265 m above sea level, the angles of depression of two ships sailing due east measure 35 degrees and 25 degrees. How far apart are the two ships?
General
4 months ago
solve the systems of equations by subsiturion y=x+15y=2xnext questiony=x+124x+2y=27
General
4 months ago
a cat owner paid the vet a fee of$269.50 for a years worth of visits. he made 14 visits that year. what was the average per cost?
General
4 months ago
A tree shadow is 95 cm long. At the same time of the day Samantha stands next to the tree in measures her shadow to be 30 cm long. Samantha is 150 cm tall. What is the height of tree in centimeters
General
4 months ago
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