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MATH SOLVE
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A roller coaster car goes above and below ground.Use the number line to show it changes in height.What is the height of the car at the end of the ride
General
3 months ago
A new restaurant with 138 seats is being planned. Studies show that 59% of the customers demand a smoke-free area. How many seats should be in the non-smoking area in order to be very sure (mu plus 3 sigma) of having enough seating there?
General
3 months ago
Which of the following does not characterize stratified random sampling? A. Nonrandom sampling is used B. The population is divided into strata that are distinct C. The population is divided into strata that are mutually exclusive and exhaustive D. The population is divided into strata that are homogenous
General
3 months ago
The shade of marble tile is measured by the amount of light reflected by the tile measured on a scale of 0-255. A perfectly black tile would reflect no light and a perfectly white tile would measure 255. A sample of nine Mezza Perla tiles were measured, with the following results: 204.999 206.149 202.102 207.048 203.496 206.343 203.496 206.676 205.831(b) can you conclude that the mean shade of Mezza Perla tile (µ) is greater than 204.8?
General
3 months ago
For a sample of eight bears, researchers measured the distances around the bears' chests and weighed the bears. Minitab was used to find that the value of the linear correlation coefficient is requals0.952. Using alphaequals0.05, determine if there is a linear correlation between chest size and weight. What proportion of the variation in weight can be explained by the linear relationship between weight and chest size?
General
3 months ago
A garden area is 30 ft long and 20 ft wide. A path of uniform width is set inside the edge. If the remaining garden is 400ft^2, what is the width of the path?
General
3 months ago
The manager of a fleet of automobiles is testing two brands of radial tires and assigns one tire of each brand at random to the two rear wheels of eight cars and runs the cars until the tires wear out. The data (in kilometers) follow. Find a 99% confidence interval on the difference in the mean life.Car Brand 1 Brand 21 37734 352022 45299 416353 36240 355004 32100 319505 37210 380156 48360 478007 38200 378108 33500 33215(a) Calculate d=(b) Calculate sD =(c) Calculate a 99% two-sided confidence interval on the difference in mean life.
General
3 months ago
Write an equation that expresses the following relationship. p varies jointly with the square of d and the cube of u In your equation, use k as the constant of proportionality.
General
3 months ago
how to find the Mean Absolute Deviation of 2,4,0,3,4,1,3,1,1,5?
General
3 months ago
Two of the cards of an ordinary deck of 52 cards are lost. What is the probability that a random card drawn from this (defective) deck is a spade? (Show your work! Define any events that you use, and be clear and neat!)
General
3 months ago
A clock loses 2 minutes every 6 hours. At 3:00 pm, the clock is set to the correct time and allowed to run without interference. What integer would describe the time loss after exactly 3 days? What would the clock read at 3:00 pm three days latee
General
3 months ago
Joel is looking for costs for using a gym he could pay 50 per month for unlimited use or he could pay 12 per month plus 4 per visit how many visits would he have to make each month to make the 50 per month unlimited use option the cheapest one
General
3 months ago
Solve the triangle if a = 40 and B = 40 degrees
General
3 months ago
What is the solution set of this system of equations?y = x2 − 3x − 4 x = y + 8 A. {(-1, 0), (4, 0)} B. {(8, 0), (0, 8)} C. {(0, 0)} D. {(2, -6)} E. There is no real solution.
General
3 months ago
Solve the triangle if c = 10 and A = 50 degrees
General
3 months ago
2x + 12 = 4x + 4 I need you to solve for x please
General
3 months ago
The length of the transverse axis is 6 and the length of the red line segment is 14 how long is the blue line segment
General
3 months ago
Use the Table that shows the weights of three sizes of pizza.Extra Large Pizza - 6 1/2Medium Pizza - 3 1/4Small Pizza - 1 5/8how many times as heavy is the extra large pizza than the small pizza?how many times as heavier is the medium pizza than the small pizza?
General
3 months ago
Farmer Justin has a total of 25 horses and turkeys onhis farm. There are 86 legs in all. Find how manyhorses and turkeys there are on the farm.
General
3 months ago
Phyllis invested a total of 70000 dollars, spread across two accounts. One account has a simple interest rate of 5 percent per year. The second account has a rate of 6 percent per year. After one year, the total interest earned on these investments was 3870 dollars. How much money did she invest at each rate?
General
3 months ago
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