Questions in Grade High-school

Questions in Grade High-school

[Homework Help] Factor the expression: \[ 2x^2 + x - 15 \]

[Homework Help] Dogs can hear much higher frequencies than humans. Therefore, dog whistles, which are inaudible to the human ear, can be heard by dogs. If a dog whistle has a frequency of 30,000 Hz, what is the wavelength of the sound emitted?

[Homework Help] Sienna has 80 yards of fencing to enclose a rectangular area. Find the dimensions that maximize the enclosed area. What is the maximum area?

[Homework Help] Solve for \( x \): \[ 2x^2 + 4x - 16 = 0 \]

[Homework Help] What is the total mass of 2.0 moles of diatomic hydrogen?

[Homework Help] Predict how two different herbivores can share the same plant resource.

[Homework Help] Who wrote the dystopian novel Nineteen Eighty-Four in which Newspeak demonstrates the heightened linguistic self-consciousness of modernist writers? a) George Orwell b) Virginia Woolf c) Evelyn Waugh d) Orson Welles e) Aldous Huxley

[Homework Help] Six years ago, Anita was \( P \) times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of \( P \)?

[Homework Help] Identify a food chain that consists only of a producer, a primary consumer, and a secondary consumer.

[Homework Help] The width of a rectangular window is 2 feet more than its height. If the area is 35 square feet, what is the height of the window?