Questions in Grade College

Questions in Grade College

[Terjawab] What are the extremes of the proportion $9.8 / 11.5=4.9 / 5.75$? a) 9.8 and 4.9 b) 11.5 and 4.9 c) 9.8 and 5.75 d) 9.8 and 11.5

[Terjawab] For the pair of functions [tex]f(x)=\frac{5 x+1}{x-7}[/tex] and [tex]g(x)=\frac{6 x}{2 x-5}[/tex] find the following. a. Find the functions [tex]f+g, f-g[/tex], fg, and [tex]\frac{f}{g}[/tex]. b. Determine the domain of the functions [tex]f+g, f-g[/tex], fg, and [tex]\frac{f}{g}[/tex].

[Terjawab] *Haylish had a common cold during the 6-month period. Mineral Supplement Study | Group | Dosage | Number of Common Cold Cases | | :---- | :------------ | :-------------------------- | | 1 | $50 mg /$ day | 10 | | 2 | $100 mg /$ day | 6 | | 3 | $150 mg /$ day | 5 | The company claims that the mineral supplement can effectively prevent the common cold. A scientist disputes the claim, saying an error exists in the setup of the groups for the investigation. Which change to the investigation would remove the source of this error? A. Test a fourth group, in which participants do not receive the mineral supplement. B. Test all three groups, with each participant receiving the mineral supplement for 12 months. C. Test only one group, with each participant receiving $200 mg /$ day of the mineral supplement. D. Test only two groups, one with each participant receiving $200 mg /$ day and one with $50 mg /$ day of the mineral supplement.

[Terjawab] Describe the difference between transverse waves and longitudinal waves. In your answer write about the way the particles move.

[Terjawab] A patient care technician is caring for a patient who has significant hearing loss. Which of the following actions should the technician take to communicate with the patient? A. Speak faster than usual when communicating. B. Use a picture board to provide instructions. C. Speak in a higher tone of voice. D. Avoid facing the patient directly when speaking.

[Terjawab] What is the minimum distance that a yard associate must maintain from the driver's side of a running tractor?

[Terjawab] Solve. [tex]b^2=54-3 b[/tex]

[Terjawab] Julia can finish a 20-mile bike ride in 1.2 hours. Katie can finish the same bike ride in 1.0 hours. How much faster does Katie ride than Julia? | | Distance (mi) | Rate (mph) | Time (hr) | | :---- | :------------ | :--------- | :-------- | | Julia | 20 | | 1.2 | | Katie | 20 | | 1.0 | A. 4.2 mph B. 8.0 mph C. 12.5 mph D. 15.4 mph

[Terjawab] Which type of refrigeration system has multiple compressors and multiple evaporators, all working together? A. Double door reach-in coolers and freezers B. Rack refrigeration system C. Walk-in cooler-freezer combo D. Transport refrigeration systems

[Terjawab] Find the domain of the function. [tex]f(x)=\frac{\sqrt{x+7}}{-3 x+8}[/tex] Write your answer as an interval or union of intervals.