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MATH SOLVE
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there were 200 tickets sold for a college game. Tickets were $4.50 for students and $9.00 for adults. The total amount was $1485. How much of each ticket was sold. Show steps
General
6 months ago
solve the equation 3(3x+4)=-2(4-2x)
General
6 months ago
on the football team, two out of every seven players are seniors. if the team has 84 players, how many are not seniors.
General
6 months ago
Calculate the sum of the numbers in each row of Pascal's triangle for n = 0 to 5.a. 1,2, 4, 6, 8, 10c. 2, 4, 8, 64b. 2, 4, 8, 16, 32d. 1, 2, 4, 8, 16, 32PLEASE HELP ME
General
6 months ago
in a school gym, the ratio of the number of boys to the number of girls was 4:3 . after 160 boys left the gym, the ratio became 4:5. how many girls were there in the gym?
General
6 months ago
how much did you invest if you earned $131.60 in interest at a rate of 4% for seven years?
General
6 months ago
A laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighings. Scale readings in repeated weighings are Normally distributed with mean equal to the true weight of the specimen. Three weighings of a specimen on this scale give 3.412, 3.416, and 3.414 g. A 99% confidence interval for this specimen is O A. 3.412 +-.00113 B. 3.414 +/-.00149 C. 3.414 +/-.00002 D. 3.414+-00231
General
6 months ago
Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-handed. They find the point estimate is 0.14. Each independently constructed a confidence interval based on the point estimate, but Jaime's interval has a lower bound of 0.049 and an upper bound of 0.191, while Mariya's interval has a lower bound of 0.079 and an upper bound of 0.201. Which interval is wrong? Why?
General
6 months ago
I do not get this someone help
General
6 months ago
Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What do you conclude? Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal.Right arm102101947979Left arm175169182146144
General
6 months ago
Which graph shows the solution to the following system of linear inequalities?−3x − 3y < −3y ≤ −x + 1
General
6 months ago
What is the solution set of the compound inequality x+1<-2x+11<3x+5
General
6 months ago
Suppose the relationship between X and Y is proportional when X is 5, why is 75 identify the constant of proportionality of x to y suppose the relationship between X and Y is proportional. When X is 5, why is 75. Identify the constant of proportionality of x to y
General
6 months ago
The boat shown in the accompanying figure is 3 miles from both lighthouses and the angle between the line of sight is 20 degrees. Find the distance between the lighthouses
General
6 months ago
In 1990, the cost of tuition at a large Midwestern university was $98 per credit hour. In 1997, tuition has risen to $168 per credit hour. Determine a linear function C ( x ) to represent the cost of tuition as a function of x , the number of years since 1990.In the year 2004, tuition will be ________ per credit hour.In the year__________ tuition will be $456 per credit hour.
General
6 months ago
The mean number of English courses taken in a two-year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of two English courses with a standard deviation of 0.7. The females took an average of three English courses with a standard deviation of 0.9. Are the means statistically the same? (Useα = 0.05)a) State the distribution to use for the test. (Enter your answer in the form z or tdf where df is the degrees of freedom. Round your answer to two decimal places.)b) What is the test statistic? (If using the z distribution round your answer to two decimal places, and if using the t distribution round your answer to three decimal places.)t=___________c) What is the p-value? (Round your answer to four decimal places.)
General
6 months ago
From a random sample of 87 us adults with no more than a high school education that mean weekly income is 678 with a sample standard deviation of 197 from another random sample of 73 us adults with no more than a bachelor's degree the mean weekly income is 1837 with a standard deviation of $328 construct pain 95% confidence interval for the mean difference in the weekly income levels between us adults with no more than a high-school diploma and those with no more than a bachelor's degree there are a hundred 13 degrees of freedom in the appropriate probability distribution
General
6 months ago
A survey study is to be made to estimate the proportion of residents of a certain suburb who favor the construction of a public park near the suburb. The survey will ask at least 30 residents about their opinion regarding the construction. How large a sample is needed if one wishes to be at least 95% confident that the estimate is within 0.04 of the true proportion of residents favoring the construction of the public park?
General
6 months ago
Consider two consecutive positive integers such that the square of the second integer added to 3 times the first is equal to 85
General
6 months ago
Solve the system : x = 2 - y and 3x + 3y = 6a) ( 4, -2 )b) ( 1, 1 )c) Parallel linesd) Coincident lines
General
6 months ago
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