Questions in Grade High-school

Questions in Grade High-school

[Done] Solve the inequality and show your work: \[ 6n - 3 > -18 \]

[Done] for the love of God help me !! I'm desperate for it tomorrow

[Done] Calculate the maximum kinetic energy of photoelectrons emitted from a metal plate when light of wavelength [tex]\lambda = 520 \, \text{nm}[/tex] is directed at the metal surface. - Work function ([tex]\Phi[/tex]) of the plate = [tex]1.1 \times 10^{-19} \, \text{J}[/tex] - Planck's constant ([tex]h[/tex]) = [tex]6.63 \times 10^{-34} \, \text{Js}[/tex] - Frequency ([tex]f[/tex]) = [tex]\frac{c}{\lambda}[/tex] - Speed of light in a vacuum ([tex]c[/tex]) = [tex]3.00 \times 10^{8} \, \text{ms}^{-1}[/tex] - Maximum kinetic energy ([tex]E_{k\text{max}}[/tex]) = [tex]hf - \Phi[/tex] Note: The wavelength must be converted to meters: [tex]\lambda = 520 \times 10^{-9} \, \text{m}[/tex] Calculate the value to verify your results.

[Done] How do most cases reach the Supreme Court?

[Done] What is the theme of the story "The All American Slurp"?

[Done] How does slope affect soil formation?

[Done] How do I find displacement on a position-time graph?

[Done] The U.S. Department of Transportation requires tire manufacturers to provide tire performance information on the sidewall of the tire to better inform prospective customers as they make purchasing decisions. One very important measurement of tire performance is the tread wear index, which indicates the tire's resistance to tread wear compared with a tire graded with a base of 100. A tire with a grade of 200 should last twice as long, on average, as a tire graded with a base of 100. A consumer organization wants to estimate the actual tread wear index of a brand name of tires that claims a grade of 200 on the sidewall of the tire. A random sample of \( n = 18 \) indicates a sample mean tread wear index of 195.3 and a sample standard deviation of 21.4. a. Assuming that the population of tread wear indexes is normally distributed, construct a 95% confidence interval estimate for the population mean tread wear index for tires produced by this manufacturer under this branding. b. Do you think that the consumer organization should accuse the manufacturer of producing tires that do not meet the performance information provided on the sidewall of the tires? Explain. c. Explain why an observed tread wear index of 210 for a popular tire is not unusual even though it is outside the confidence interval developed in (a).

[Done] Globalization has weakened the American economy. True or False?

[Done] What is \(-9.6\) repeating written as a fraction?