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Questions in Grade High-school

[Done] A popular video game claims that the average time needed to reach level 10 Paladin is 3 hours with a standard deviation 0.4 hours. James thinks that he and his four friends are more skilled than the average gamer because it took them an average of only 2.5 hours. Which of the following is the most restrictive level that would validate his claim? \begin{tabular}{|c|c|c|c|} \hline \multicolumn{4}{|c|}{ Upper-Tail Values } \\ \hline$a$ & $5 \%$ & $2.5 \%$ & $1 \%$ \\ \hline \begin{tabular}{c} Critical $z$-values \end{tabular} & 1.65 & 1.96 & 2.58 \\ \hline \end{tabular} A. 1% B. 2.5% C. 5% D. 10%

[Done] If $y$ varies directly as $x$, and $y$ is 6 when $x$ is 72, what is the value of $y$ when $x$ is 8?

[Done] A quarterback throws a football toward a receiver from a height of 6 ft. The initial vertical velocity of the ball is $14 ft/s$. At the same time that the ball is thrown, the receiver raises his hands to a height of 8 ft and jumps up with an initial vertical velocity of $10 ft/s$. Projectile motion formula: [tex]h=-16 t^2+v t+h_0[/tex] [tex]t=[/tex] time, in seconds, since the ball was thrown [tex]h=[/tex] height, in feet, above the ground Complete the system that models the heights of the ball and the receiver's hands over time. [tex]\begin{array}{l} h=-16 t^2+14 t+\square \\ h=-16 t^2+\square t+\square\\ \end{array}[/tex]

[Done] Use the zero product property to find the solutions to the equation [tex]$6 x^2-5 x=56$[/tex]. A. [tex]$x=-8$[/tex] or [tex]$x=\frac{7}{6}$[/tex] B. [tex]$x=-\frac{1}{2}$[/tex] or [tex]$x=\frac{56}{3}$[/tex] C. [tex]$x=-\frac{8}{3}$[/tex] or [tex]$x=\frac{7}{2}$[/tex] D. [tex]$x=-\frac{3}{7}$[/tex] or [tex]$x=\frac{2}{3}$[/tex]

[Done] A distracting leaf blower right outside a classroom is not an example of "noise" in terms of communication theory. Group of answer choices: False True

[Done] If f(x) = 5x² and g(x) = x² + 12x + 85, what is the sum of all values for a such that f(a + 2) = g(2a)?

[Done] Estimate and then complete each subtraction. 184 - 42 = Estimate = 180 - 40 = 140 361 - 33 = Estimate = 360 - 30 = 330

[Done] Question 2: What is the primary role of the recursive formula in dynamic programming?

[Done] Read the passage about a village and then write about the city life. Noor Pur is a small village. There are fields and tall trees in it. There is fresh food to eat. There are no roads, hospitals or schools. There is a small mosque. People offer the prayers in it. The villagers grow wheat, rice and other crops. Most of the villagers work in the fields. They work hard.

[Done] Write a story about an angry wizard who lost his magical wand. While writing the story, you must take care of the following: - Word Limit: 120 - 150 words - Proper beginning, middle and end - Correct use of grammar and spellings - Descriptive details that paint a picture in the reader's mind