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General
There is a contest being held at Company A. Company A employs forty people. The first 3 employees to correctly complete a riddle each receives an extra vacation day that year. What is the probability that those first 3 employees are in the order of Jack, Bill, and John?
General
1 month ago
how many pounds of candy worth $12 per pound should be mixed with candy costing $19 per pound to produce a 70 pound mixture that sells for $15 per pound?
General
1 month ago
Alice borrowed 16700 from the bank at a simple interest rate of 9% to purchase a used car.At the end of the loan,she had paid a total of 24215.How many months was the car loan
General
1 month ago
A commercial farm uses a machine that packages carrots in eighteen ounce portions. A sample of 7 packages of carrots has a standard deviation of 0.19. Construct the 95% confidence interval to estimate the standard deviation of the weights of the packages prepared by the machine. Round your answers to two decimal places.
General
1 month ago
Solve2x + 3y =2/33x - 4y = 18
General
1 month ago
Find the slope and y-intercept from the graph.m=________ b=________(m is slope)(b is y-intercept)
General
1 month ago
A DJ has a total of 1075 dance rock and country songs on her system. The dance selection is three times the size of the rock selection. The country selection has 105 more songs than the rock selection. How many songs on the system are dance? How many rock? How many country?
General
1 month ago
Two vertical poles, one 4 ft high and the other 16 ft high, stand 15 feet apart on a flat field. A worker wants to support both poles by running rope from the ground to the top of each post. If the worker wants to stake both ropes in the ground at the same point, where should the stake be placed to use the least amount of rope?
General
1 month ago
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 418 gram setting. It is believed that the machine is underfilling the bags. A 9 bag sample had a mean of 411 grams with a standard deviation of 20 . A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the bags are underfilled?
General
1 month ago
The bacterial strain Acinetobacter has been tested for its adhesion properties, which is believed to follow a normal distribution. A sample of five measurements gave readings of 2.69, 5.76, 2.67, 1.62 and 4.12 dyne-cm. Assume that the standard deviation is known to be 0.7 dyne-cm_2 and that the scientists are interested in high adhesion (at least 2.66 dyne-cm^2)(a) Should the alternative hypothesis be one-sided or two-sided? Write down the null and alternative hypotheses.(b) Based on your answer to part (a), test the hypothesis to see if the mean adhesion is at least 2.66 dyne-cm_2 (Use the p-value approach) What can be concluded?
General
1 month ago
Determine an equation for the right bisector of the line segment with endpoints J(-5,3) and K(3,-2)
General
1 month ago
Yolanda gave 20% of her daily Vsalary to taxes. She then put 10%of her remaining salary into hersavings. If she is left with exactly$162, what is Yolanda's daily salary?
General
1 month ago
Please help me find X and Y! Thank you :)
General
1 month ago
Today, everything at a store is on sale. The store offers a 20% discount. The regular price of a shirt is x dollars, what is the discount price in dollars?
General
1 month ago
According to data from the 2010 United States Census, 43.1% of Americans over the age of 65 were male. Suppose Maria, a researcher, takes a random sample of 60 Americans over the age of 65 and finds that 18 are male. Let p represent the sample proportion of Americans over the age of 65 that were male. What are the mean and standard deviation of the sampling distribution of p?
General
1 month ago
The smaller triangle is a pre-image of the bigger triangle the center of dilation is (2, -1). What is the scale factor used to create the dilation? -2-1/21/22
General
1 month ago
A random sample is to be selected from a population that has a proportion of successes p = 0.61. Determine the mean and standard deviation of the sampling distribution of p? for each of the following sample sizes. (Round your standard deviations to four decimal places.)(a) n = 20mean standard deviation (b) n = 30mean standard deviation (c) n = 40mean standard deviation (d) n = 60mean standard deviation (e) n = 110mean standard deviation (f) n = 210mean standard deviation
General
1 month ago
The first floor of a house consists of a kitchen, playroom, and dining room. The areas of the kitchen, playroom, and dining room are in the ratio 4:3:2. The combined area of these three rooms is 189 square feet.What is the area of the kitchen?
General
1 month ago
given that a1=5 and a2=15 are the first two terms of a geometric sequence, determine the values of a3 and a10. Show the calculations that lead to your answer
General
1 month ago
Write the equation of a line whose slope is 2/3 and crosses the y axis at (0, -5)
General
1 month ago
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