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MATH SOLVE
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Write the length of each insect as a fraction or a mixed number and as a decimal
General
3 months ago
One moving company charges $800 plus $16 per hour.another moving company charges $720 plus $21 per hour. At what number of hours will the charge by both companies be the same?
General
3 months ago
Nellie has a bankruptcy on her credit report and therefore pays higher interest rates on her current loans. She calculates that the extra money she pays in additional interest each year, if invested at the rate of 3% for 5 years, could earn her simple interest totaling $114. Approximately how much does Nellie pay in additional interest each year
General
3 months ago
The amount of kerosene, in thousands of liters, in a tank at the beginning of any day is a random amount Y from which a random amount X is sold during that day. Suppose that the tank is not resupplied during the day so that x ? y, and assume that the joint density function of these variables is f(x,y) = 2 for 0 < x < y < 1. find the that the amount of kerosene sold is between 0.25 and 0.50 thousands liters given that the amount in the tank at the start of the day is 0.90 thousands liters. (Hint: f(x|y) = f(x,y) / fy(y) ).
General
3 months ago
Which is an equation of the line that passes through (-1,-5) and (-3,-7)
General
3 months ago
Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would takeKelly 1 hour. If they work together, the situation can be modeled by the following equation, where t is the time it would take tosand the table working together.1/40+1/60=1/tShandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. Which bestdescribes Shandra's claim?
General
3 months ago
In a particular experiment to see if caffeine consumption has a statistically significant effect upon memory, a student found that the caffeine consumers scored a 97 while those who didn't consume caffeine scored an 89. The student also determined that t=2.39 and p=0.03. What can the student conclude?(A) There is not a statistically significant difference in scores between these two groups based solely on the high t-value(B) There is a statistically significant difference in scores between these two groups based solely on the low p-value (C) There is a statistically significant difference in scores between these two groups based solely on the large difference in means(D) Not enough information is given(E) There is a statistically significant difference in scores between these two groups based solely on the high p-value
General
3 months ago
1.Your teacher (is awesome) keeps a jarof Jolly Rancher on her desk (no shedoesn't). There are 4 cherry, 5 blue-raspberry, B green apple, and 3 grape.What is the probability you will NOTchoose a blue-raspberry Jolly Rancher?10. Find the surface area.7cm2 cm12 cm
General
3 months ago
What is the equation of a line that passes through (4, 3) and has a slope of 2? y=2x−11 y=2x−7 y=2x−1 y=2x−5
General
3 months ago
How do you write five hundred six and twelve hundredths in standard form?
General
3 months ago
Consider the Ideal Gas LawPV = kT,where k>0is a constant. Solve this equation for V in terms of P and T.a) Determine the rate of change of the volume with respect to the pressure at constant temperature. Interpret the result.b) Determine the rate of change of the volume with respect to the temperature at constant pressure. Interpret the result.c) Assuming k =1,draw several level curves of the volume function and interpret the results.
General
3 months ago
A communications channel transmits the digits 0 and 1. However, due to static, the digit transmitted is incorrectly received with probability 0.2. Suppose that we want to transmit a message consisting of one binary digit. To reduce the chance or error, we transmit 00000 instead of 0 and 11111 instead of 1. If the receiver of the message uses majority" decoding, what the probability that the message will be wrong when decoded? What independence assumptions are you making?
General
3 months ago
In a Gallop poll of 1012 randomly selected adults, 9% said that cloning of humans should be allowed. We are going to use a .05 significance level to test the claim that less than 10% of all adults say that cloning of humans should be allowed. What is the value of the test statistic? (use 2 significant digits) Group of answer choices
General
3 months ago
Write each sequence as a function.b. {1, 3, 5, 7, 9, … }
General
3 months ago
Write each sequence as a function.c. an+1 = 3an, a1 = 1, where nn is a positive integer greater than or equal to 1.
General
3 months ago
there are $320 available to fence in a rectangular garden. the fencing for the side of the garden facing the road costs $15 per foot, and the fencing for the other 3 sides costs $5 per foot. the picture on the right depicts this situation. consider the problem of finding the dimensions of the largest possible garden.a) determine the objective and constraint equations.b) express the quantity to be maximized as a function of x.c) find the optimal values of x and y
General
3 months ago
You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you have not studied and so must guess (select one of the five answers in a completely random fashion) on each question. Let x represent the number of correct responses on the test. (a) What is your expected score on the exam? (Hint: Your expected score is the mean value of the x distribution.)(b) Compute the variance and standard deviation of x. Variance =Standard deviation =
General
3 months ago
A 25-foot ladder is placed against a vertical wall. Suppose the bottom of the ladder slides away from the wall at a constant rate of 4 feet per second. How fast is the top of the ladder sliding down the wall when the bottom is 15 feet from the wall? The ladder is sliding down the wall at a rate of nothing ft/sec. (Type an integer or a simplified fraction.)
General
3 months ago
Write each sequence as a function.a. {1, 3, 6, 10, 15, 21, 28}
General
3 months ago
Suppose the speed limits in thirteen countries in miles per hour are as follows: Country Highway Miles per Hour Italy 87 France 82 Hungary 75 Belgium 75 Portugal 75 Great Britain 70 Spain 62 Denmark 62 Netherlands 62 Greece 62 Japan 62 Norway 56 Turkey 56 What is the mean, median, and mode for these data? Feel free to use your computer (statistical software or spreadsheet) to get the answer. Which is the best measure of central tendency for this data?
General
3 months ago
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