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In a raffle where 2000 tickets are sold for $2 each, one first prize of $400 and one second prize of $200 will be awarded. What is the expected value of a single ticket in the raffle? Round your answer to the nearest hundredth, and do not include a $ sign or the word "dollars" in your response.
General
5 months ago
A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. The materials for each feeder cost $6, and the society sells an average of 30 per week at a price of $10 each. The society has been considering raising the price, so it conducts a survey and finds that for every dollar increase, it loses 3 sales per week.a) Find a function that models weekly profit in terms of price per feeder.b) What price should the society charge for each feeder to maximize profits? What is the maximum weekly profit?
General
5 months ago
A clothing company plans to shear at least 700 sheep today all novices shear the same number of sheep per day and all experts shear the same number of sheep per day. Let N represent the number of novices and E represent the number of experts needed for the company to meet its goal 7N+12N is greater than it equal to 700 according to the inequality how many sheep does each Novis or expert share per day.
General
5 months ago
A horse race has 14 entries and one person owns 5 of those horses. Assuming that there are no ties, what is the probability that those five horses finish first comma second comma third comma fourth comma and fifth (regardless of order)? The probability that the five horses finish first comma second comma third comma fourth comma and fifth is nothing . (Round to four decimal places as needed.)
General
5 months ago
A graduate student wanted to estimate the average time spent studying among graduate students at her school. She randomly sampled graduate students from her school and obtained a 99% confidence interval of (17,25) hours/week. Which of the following would be true if the level of confidence was lowered to 95%? Choose the correct answer below.A. The width of the confidence interval would remain the same.B. The width of the confidence interval would be smaller.C. The width of the confidence interval would be larger.D. More information is needed to determine what would happen to the width of the confidence interval.
General
5 months ago
5 pounds of fudge sells for $17 at the same rate how much was 12 pounds of fudge cost
General
5 months ago
What is the equation, in slope-intercept form, of the line that is perpendicular to the liney - 4 = -2(x - 6) and passes through the point (-2,-2)?O y=-x - 10O y= {x + 10O y=zx-1O y=2x +1Mark this and returnSave and ExitNext
General
5 months ago
The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. You enrolled in a class of 25 students. What is the probability that the class' average IQ exceeds 130?
General
5 months ago
The automobile assembly plant you manage has a Cobb-Douglas production function given by p = 10x^0.2 y^0.8where P is the number of automobiles it produces per year, x is the number of employees, and y is the daily operating budget (in dollars). Assume that you maintain a constant work force of 130 workers and wish to increase production in order to meet a demand that is increasing by 100 automobiles per year. The current demand is 1200 automobiles per year. How fast should your daily operating budget be increasing? HINT [See Example 4.] (Round your answer to the nearest cent.)= ? $ per yr
General
5 months ago
Two bottling plants package a certain type of sports drink. Suppose the mean volume of all of this type of sports drinks is 18 fluid ounces. Bottling plant A bottles approximately 48805 sports drinks per day. Bottling plant B bottles approximately 172594 sports drinks per day. On a particular day, which bottling plant is less likely to record a mean volume of 19 fluid ounces for the day?
General
5 months ago
HURRY!!! PLEASE HELP WITH QUESTIONS!!!! WILL MAKE BRAINIEST ANSWER!!!!Consider the two graphs below.Which statement best describes the graphs?A.Graph 1 represents a proportional relationship, but graph 2 does not.B.Graph 2 represents a proportional relationship, but graph 1 does not.C.Both graph 1 and graph 2 represent proportional relationships.D.Neither graph 1 nor graph 2 represents a proportional relationship.
General
5 months ago
You collected the following data about the colors of dresses at the prom:RedBlackBlueWhiteOther1437225633When making a pie chart for this data, what percentage of the dresses would the sector labeled "Red" include? (round to the nearest percent) A. 9% B. 14% C. 23% D. 25%
General
5 months ago
Choose the abbreviation of the postulate or theorem that supports the conclusion that the triangles are congruent.Given:∠C, ∠F are rt. ∠'s; ∠B = ∠E; BC = EFHLLLHALAPlease hurry and answers 30 pts
General
5 months ago
Which problem can be solved by division of decimals?Danette needs 8 dozen eggs for her restaurant. How many eggs should she buy? How much money does Dawna need to fill her 11.5 gallon gas tank if the price of gas is $3.59 a gallon? How many more miles does Judy’s family have to drive to reach their destination if they have driven 45.4 miles of a 123.8 mile trip?What is Jeremy’s average if he received a total of 323.7 points on 7 tests?
General
5 months ago
Which of the expressions below cannot be rewritten using the associative property? A. 12 * (17 * 1) B. 13 + 2 + 7 C. (15 + 4) + 10 D. (3 / 6) * 10
General
5 months ago
Find the value of the following expression:(2^8 ⋅ 5^−5 ⋅ 19^0)^−2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 2^28 Write your answer in simplified form. Show all of your steps.
General
5 months ago
Let w be the set of all vectors ⎡⎣⎢xyx+y⎤⎦⎥ with x and y real. find a basis of w⊥.
General
5 months ago
A silo (base not included ) is to be constructed in the form of a cylinder surmounted by a hemisphere. The cost of construction per square unit of surface area is 5 times as great fit the hemisphere as it is for the cylindrical sidewall. Determine the dimensions to be used if the volume is fixed at 8,000 cubic units and the cost of construction is to be kept at minimum. Neglect the thickness of the silo and waste in construction. I have the function of the cost as C=(16000/r) + (26pi r^2 /3) It is now asking for the interval of interest. ..in interval notation. I can see that it can't be zero so I have (0,__] , but I have no idea how to find end point on the interval of interest. Please please please help!
General
5 months ago
sheila either walks to school or cycles, the probability that she walks it 0.65.If she walks, the probability that shell be iate is 0.4If she cycles the probability that shell be late is 0.1work out the probability that on any one day, sheila will not be late for school.
General
5 months ago
Use cylindrical coordinates. evaluate x dv e , where e is enclosed by the planes z = 0 and z = x + y + 10 and by the cylinders x2 + y2 = 16 and x2 + y2 = 36.
General
5 months ago
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