Questions in Grade High-school

Questions in Grade High-school

[Free] The graph of [tex]y = -5x^2 + 9[/tex] passes through [tex](1, 2a)[/tex] in the standard [tex](x, y)[/tex] coordinate plane. What is the value of [tex]a[/tex]?

[Free] What is the exact value of [tex]\tan\left(-\frac{13\pi}{6}\right)[/tex]? Provide an explanation.

[Free] Why is cell size limited?

[Free] Examine how photosynthetic prokaryotic cells changed the atmosphere of early Earth.

[Free] How do most organisms ensure the continuation of life?

[Free] Why did Adolf Hitler kill innocent people?

[Free] Why did the United States government reject the idea of invading Japan to end World War II?

[Free] What is one thing that all types of asexual reproduction have in common?

[Free] Find all solutions to the equation: \[ 0 = 2x^4 + 5x^3 + 38x^2 + 125x - 300 \]

[Free] Solve each equation by factoring. \[ 12 - 27n^2 = 0 \]