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MATH SOLVE
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A shirt is on sale for d dollars. The regular price is 4 times as much. Todd has enough money to buy 2 shirts at the regular price. How many shirts can Todd buy at the sale price?
General
2 months ago
A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 64 days of sales was selected. It was found that the average was $8300 per day. From past information, it is known that the standard deviation of the population is $1200.(Provide mathematical steps and explanations in detail to receive full credit.) The researcher would like to test the following hypothesis ????: ?? ? 8,000 ????: ?? > 8,000 (a) Calculate the value of the test statistic. Let ?=0.05 (b) What is the conclusion based on the critical value approach? Let ?=0.05 (c) What is the conclusion based on the P-VALUE value approach? Let ?=0.05
General
2 months ago
A furniture factory has 2840 machine hours available each week in the cutting department, 3760 hours in the assembly department, and 2760 in the finishing department. Manufacturing a chair requires 0.9 hour of cutting, 0.6 hour of assembly, and 0.5 hour of finishing. A cabinet requires 0.2 hour of cutting, 0.8 hour of assembly, and 0.6 hour of finishing. A buffet requires 0.4 hour of cutting, 0.5 hour of assembly, and 0.3 hour of finishing. How many chairs, cabinets, and buffets should be produced in order to use all the available production capacity?
General
2 months ago
The heat index I is a measure of how hot it feels when the relative humidity is H (as a percentage) and the actual air temperature is T (in degrees Fahrenheit). An approximate formula for the heat index that is valid for (T ,H) near (90, 40) is I (T,H) = 45.33 + 0.6845T + 5.758H − 0.00365T 2 − 0.1565HT + 0.001HT2 (a) Calculate I at (T ,H) = (95, 50). (b) Which partial derivative tells us the increase in I per degree increase in T when (T ,H) = (95, 50)? Calculate this partial derivative.
General
2 months ago
Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $10,100 will be accepted. Assume that the competitor's bid x is a random variable that is uniformly distributed between $10,100 and $14,500. a. Suppose you bid $12,000. What is the probability that your bid will be accepted (to 2 decimals)?_____________b. Suppose you bid $14,000. What is the probability that your bid will be accepted (to 2 decimals)?_____________c. What amount should you bid to maximize the probability that you get the property?$ _____________d. Suppose that you know someone is willing to pay you $16,000 for the property. You are considering bidding the amount shown in part (c) but a friend suggests you bid $13,100. If your objective is to maximize the expected profit, what is your bid?- Select your answer: Stay with your bid in part (c); it maximizes expected profit or Bid $13,100 to maximize the expected profitItemWhat is the expected profit for this bid (to 2 decimals)?$ _____________
General
2 months ago
A home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 1584 cubic feet. The cost of wall paint is $0.06 per square foot and the cost of ceiling paint is $0.11 per square foot. Find the room dimensions that will minimize the cost of the paint. (Enter your answers as a comma-separated list.) Incorrect: Your answer is incorrect. ft
General
2 months ago
Find the midpoint of PQ¯¯¯¯¯¯¯¯ with endpoints P(−7, 0) and Q(1, 8). Then write an equation of the line that passes through the midpoint and is perpendicular to PQ¯¯¯¯¯¯¯¯ . This line is called the perpendicular bisector. The midpoint is ( , ). The equation of the perpendicular bisector is y = .
General
2 months ago
The bottom of the meniscus of your solution falls between the second and third marking from the 12 mL mark of the nine markings between the 12 mL and 13 mL mark on your buret. The bottom of the meniscus is a little closer to the second mark than the third. How would you report this volume? 12 mL
General
2 months ago
A random sample of 30 airline flights during a storm had a mean delay of 40 minutes with a standard deviation of 5 minutes. a. W hat parameter are we wanting to estimate ? U se symbolic notation. b. W hat is the point estimate ? U se both the symbolic notation and the value. c. Calculate t he 95 % one - sided upper confidence interval of the population mean delay time during the storm. d. I nterpret the interval in context of the original problem.
General
2 months ago
Assume that the heights of women are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. The U.S. Army requires that the heights of women be between 58 and 80 inches. If 200 women want to enlist in the U.S. Army, how many would you expect to meet the height requirements? (Please round down to the nearest whole number.) 197 2 55 144 10 points Save Answer
General
2 months ago
An Indy car driver has to be a certain height to fit into the race car. The following inequality 175<_3x-17<_187, where x represents the height of the driver in inches. What is the range for the height of an Indy car driver?
General
2 months ago
Find 10 partial sums of the series. (round your answers to five decimal places.) ∞ 15 (−4)n n = 1
General
2 months ago
simone has discovered a blow out sale at a shop in the mall. the cost of the 2 sweaters , 5 shirts and 3 pairs of pants is 172. the cost of the 5 sweaters and 8 pairs of pants is 269. the cost of 4 shirts and 1 pair of pants is 74 if x represents sweaters, y represents shirts and z represents pants which systems of equations can be used to determine the sale price of the sweaters the shirts and the pants
General
2 months ago
Which of the following is the equation of a line in slope-intercept form for a line with slope = 1/3 and y-intercept at (0, -4)? A. y =1/3 x + 4 B. y =1/3 x - 4 C. y = -1/3x - 4 D. x = 1/3y - 4
General
2 months ago
For bone density scores that are normally distributed with a mean of 0 and a standard deviation of 1, find the percentage of scores that area. significantly high (or at least 2 standard deviations above the mean).b. significantly low (or at least 2 standard deviations below the mean).c. not significant (or less than 2 standard deviations away from the mean).
General
2 months ago
Jerrod owes $2,000 on a credit card that charges him an annual percentage rate of 18%. if jerrod stopped making payments, how long would it be before the balance on his credit card reached $4,000?
General
2 months ago
Use complete sentences to explain the process of converting a logarithmic equation to its equivalent exponential form to obtain solutions to the graph of the logarithmic equation.
General
2 months ago
Two similar trapezoids have areas of 49 cm2 and 9 cm2. find their similarity ratio.
General
2 months ago
Assuming that a cheese sandwich consists of 2 slices of bread and 3 slices of cheese, determine the number of whole cheese sandwiches that can be prepared from 28 slices of bread and 45 slices of cheese.
General
2 months ago
Dr. Potter provides vaccinations against polio and measles.Each polio vaccination consists of 444 doses, and each measles vaccination consists of 222 doses. Last year, Dr. Potter gave a total of 606060 vaccinations that consisted of a total of 184184184 doses.How many polio vaccinations and how many measles vaccinations did Dr. Potter give last year?
General
2 months ago
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