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(Will award fast Brainliest & Many Points)The price for digital downloads of music is represented by the linear function f(x) shown on the graph. The price for digital downloads of movies is represented by g(x) = x, where x is the number of movies downloaded and g(x) is the total cost in dollars.You want to make 2 downloads, and you have $5. Determine the least expensive option.A] You download 2 songs.B] You download 2 movies.C] You download 1 song and 1 movie.D] You don't have enough money for 2 downloads.
General
4 months ago
10. Two right prisms have similar bases. The first prism has height 5 and volume 100. A side on the base of the first prism has length 2, and the corresponding side on the base of the second prism has length 3. If the height of the second prism is 6, what is its volume?
General
4 months ago
One measure of general health is your body mass index (BMI). Adults with a BMI between 18.5 and 24.9 are generally considered to have an ideal body weight for their height. The mean BMI for adults in a certain country is 24.6. Suppose the BMI for adults in this country is normally distributed with standard deviation 1.2. (Round your answers to four decimal places.) Suppose one adult from this country is selected at random. What is the probability that the person's BMI is more than 25.5?
General
4 months ago
A survey by the Pew Research Center asked a random sample of 2142 U.S. adults and a random sample of 1055 college presidents how they would "rate the job the higher education system is doing in providing value for the money spent by students and their families." Their choices were: Excellent, Good, Only Fair, or Poor. 5% the U.S. adults and 17% of the college presidents provided a rating of "Excellent." Calculate the standard error of the difference in sample proportions (for adults minus presidents) based on this data. Round your answer to 4 decimal places
General
4 months ago
7.a. A 3×5 rectangle is revolved about one of its sides of length 5 to create a solid of revolution.Find volume of the solid. b.A 3-4-5 right triangle is revolved about a leg of length 4 to create a solid of revolution. Describe the solid.c. A 3-4-5 right triangle is revolved about its legs to create two solids. Find the volume of each solid
General
4 months ago
Use f(x) = 2 x and f-'(x) = 2x to solve the problems.f(2)=...F1 (1) =...F1 (12)) = ...
General
4 months ago
State the conclusion based on the results of the test. According to the report, the mean monthly cell phone bill was $49.42 three years ago. A researcher suspects that the mean mon null hypothesis is rejected Choose the correct answer belowA. There is sufficient evidence to conclude that the mean monthly cell phone bill is less than its level three years ago of $49. B. There is not sufficient evidence to conclude that the mean monthly cell phone bill is less than its level three years ago。 C. There is sufficient evidence to conclude that the mean monthly cell phone bill is different from its level three years ago of
General
4 months ago
Assume that the carrying capacity for the US population is 800 million. Use it and the fact that the population was 282 million in 2000 to formulate a logistic model for the US population. (Let t = 0 correspond to the year 2000. Use k for your constant.) (a) P (t) = millions (b) Determine the value of k in your model by using the fact that the population in 2010 was 309 million. k = (c) Use your model to predict the US population in the years 2200 and 2400. (Round your answers to the nearest integer.) year 2200 millionyear 2400 million (d) Use your model to predict the year in which the US population will exceed 500 million. (Round your answer down to the nearest year.)
General
4 months ago
Intellectual development (Perry) scores were determined for 21 students in a first-year, project-based design course. (Recall that a Perry score of 1 indicates the lowest level of intellectual development, and a Perry score of 5 indicates the highest level.) The average Perry score for the 21 students was 3.27 and the standard deviation was .40. Apply the confidence interval method of this section to estimate the true mean Perry score of all undergraduate engineering students with 99% confidence. Interpret the results.
General
4 months ago
Kayla's school is selling tickets to a play. On the first day of ticket sales, the school sold 5 senior citizen tickets and 3 child tickets for a total of $69. The school took in $73 on the second day by selling 1 senior citizen ticket and 8 child tickets. Find the price of a senior citizen ticket and the price of a child ticket
General
4 months ago
Please help! The question is in the picture!
General
4 months ago
The sum of the first ten terms of a particular arithmetic sequence is four times the sum of the first five terms of the sequence. What is the ratio of the first term to the second term? Express your answer as a common fraction.
General
4 months ago
Which of the following points is a solution to a system of linear equationsy<3x+5y>-2/3x-3 _a.(3,14)b.(3,9)c.(3,-14)d.(3,-9)
General
4 months ago
4. Which ratios form a proportion? Use cross products to test each pair.A. 9/17 27/50B. 12/35 24/75C. 15/55 33/121D. 12/35 20/70
General
4 months ago
The manager of a movie theater found that Saturdays sales were $3675. He knew that a total of 650 tickets were sold on saturday. Adult tickets cost $7.50, and children tickets cost $4.50. How many of each kind of ticket were sold?
General
4 months ago
Hey, can I please get some help with this? It shouldn’t be too hard, thanks!
General
4 months ago
2x-5=3x^2 find the root of X
General
4 months ago
Sixty-four tickets are issued for a schooldance, and 96 brownies are ordered forthe refreshment table. Each student getsthe same number of tickets as everyother student. Each student also gets thesame number of brownies as every otherstudent.Each student will get — tickets and _brownies.
General
4 months ago
A tire company measures the tread on newly-produced tires and finds that they are normally distributed with a mean depth of 0.98mm and a standard deviation of 0.35mm. Find the probability that a randomly selected tire will have a depth less than 0.70mm. Would this outcome warrant a refund (meaning that it would be unusual)?
General
4 months ago
A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95 % confidence interval for the true proportion of all voters in the state who favor approval. A) 0.435 < p < 0.508 B) 0.444 < p < 0.500 C) 0.471 < p < 0.472 D) 0.438 < p < 0.505
General
4 months ago
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