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Mason has a collection of 49¢ stamps, 20¢ stamps, and 34 stamps worth $23.55. He has 56 total 49¢ and 20+ stamps and the number of 3¢ stamps is nine more than the number of 20¢ stamps. How many of each does he have?
General
4 months ago
Please answer 26 and 27 please thank you
General
4 months ago
At a display booth at an amusement park, every visitor gets a gift bag. Somethe bags have items in them as shown in the table below.Items in the Gift BagsItemsBagsHat Every 2nd visitorT-shirt Every 7th visitorBackpack Every 10th visitorHow often will a bag contain all three items?A. Every 14 bags(B. Every 19 bagsC. Every 70 bagsD. Every 140 bagsSo how do you solve it
General
4 months ago
A sample of size 45 will be drawn from a population with mean 53 and standard deviation 11. Use the TI-84 Plus calculator. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) Find the probability that x will be between 54 and 55. Round the answer to at least four decimal places. (c) Find the 47th percentile of x. Round the answer to at least two decimal places. (a) Is it appropriate to use the normal distribution to find probabilities for x? Yes No (b) Theprobabilitythatxwillbebetween54and55is. (c) The47thpercentileofxis.
General
4 months ago
An insurance analyst working for a car insurance company would like to determine the proportion of accident claims covered by the company. A random sample of 200 claims shows that the insurance company covered 80 accident claims and did not cover 120 claims. Construct a 90 percent confidence interval estimate of the true proportion of claims covered by the insurance company.
General
4 months ago
7. The following clues are given about a bucket of bubble gum.1. There are between 400 - 500 pieces of gum in the bucket.2. The bubble gum was purchased in 4 equally-sized bags.3. The product of all the digits is 56.How many pieces of bubble gum were in the buckets: Explain how you figured it out.
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4 months ago
An 80 ounce bottle of apple juice contains 32 ounces of water a 64 ounce bottle of orange juice has 48 ounces of water which juice has a greater percent of water?What percent of the bottle of apple juice is water?
General
4 months ago
Neil and Yuki run a data entry service. Neil starts at 9:00am and can type 45 words per minute. Yuki arrives at 10:30am and can type 60 words per minute. Write and solve an inequality to find at what time Yuki will have typed more words than Neil. Let x represent the time in minutes.
General
4 months ago
NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part Determine whether the relation on the set of all people is reflexive, symmetric, antisymmetric, and/or transitive, where (a. b) E Rif and only if ind b have a common grandparent. (Check all that apply) reflexive symmetric transitive antisymmetric
General
4 months ago
Mrs cleaver mixes 1.24 liters of red paint with 3 times as much as blue paint to make purple paint. She pours the paint in 5 containers. How much blue paint is in each container?
General
4 months ago
(Riddle)An athlete is able to jump FOREVER. However, everytime that she jumps she gets a bit more tired, and every jump goes 12 as far as her prior jump. Now, for her very first jump, she goes 12 of a foot.On her second jump, she goes 14 of a foot, and so on and so forth. The beginning of her journey is shown in the gif below.How many jumps does it take for her to travel 1 foot?
General
4 months ago
Help!Is the binomial a factor of the polynomial function? f(x)=2x^3+15x^2+22x-15.
General
4 months ago
Six students are working to simplify the expression shown.Drag each student's answer to a box to show whether it is fully simplified, equivalent tothe given expression but not fully simplified, or not equivalent to the given expression.
General
4 months ago
Mr. Jackson orders lunches to be delivered to his workplace for himself and somecoworkers. The cost of each lunch is $6.25. There is also a one-time delivery feeof $3.50 to deliver the lunches. What expression could Mr. Jackson use to findthe cost of ordering n lunches?Use your expression to find the total cost of delivering 5 lunches.Show your work.
General
4 months ago
Much like sound bites of news stories, statistical studies are often reduced to one- or two-sentence "stat-bites." For thestat-bite below, discuss what crucial information is missing and what more someone would want to know before acting on the study.According to a video streaming service, 48% of American couples are "cheaters", that is—they promise each other to watch a filmtogether, but one of them first watches it alone.Select all that apply.A. What do the other 52% of couples do?B. How were respondents persuaded to tell the truth?C. What did other video streaming service polls reveal?D. What kinds of films do "cheaters" watch?E. How do couples in other countries behave?
General
4 months ago
Most soybeans grown in the United States are genetically modified to, for example, resist pests and so reduce use of pesticides. Because some nations do not accept genetically modified (GM) foods, grain-handling facilities routinely test soybean shipments for the presence of GM beans. In a study of the accuracy of these tests, researchers submitted lots of soybeans containing GM beans to 21 randomly selected facilities. Of these, 17 detected the GM beans. Would it be appropriate to calculate a 90% confidence interval for the proportion of all grain-handling facilities that will correctly detect GM beans in a shipment?
General
4 months ago
Suppose that the length, in inches, of a witch's or wizard's wand is a normal random variable with parameters mu = 11 and sigma^2 = 2. (a) What percentage of wands are over 12 inches? Leave you answer in terms of phi. (b) Given that a wand is greater than 12 inches, what is the probability it is greater than or equal to 15 inches? Leave you answer in terms of phi.
General
4 months ago
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm. (a) If the distribution of interpupillary distance is normal and a random sample of n = 25 adult males is to be selected, what is the probability that the sample mean distance x for these 25 will be between 64 and 66 mm? (Round all your intermediate calculations to four decimal places. Round the answers to four decimal places.)
General
4 months ago
How many different functions are there from a set with 10 elements to sets with the following numbers of elements? a) 2 b) 3c) 4d) 5
General
4 months ago
The desired percentage of SiO2 in a certain type of aluminous cement is 5.5. To test whether the true average percentage is 5.5 for a particular production facility, 16 independently obtained samples are analyzed. Suppose that the percentage of SiO2 in a sample is normally distributed with σ = 0.32 and that x = 5.24. (Use α = 0.05.) (a) Does this indicate conclusively that the true average percentage differs from 5.5?State the appropriate null and alternative hypotheses.H0: μ = 5.5Ha: μ > 5.5H0: μ = 5.5Ha: μ ≥ 5.5 H0: μ = 5.5Ha: μ < 5.5H0: μ = 5.5Ha: μ ≠ 5.5
General
4 months ago
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