Questions in Grade High-school

Questions in Grade High-school

[Terjawab] What does the surface area represent in a cell?

[Terjawab] Rachel has a collection of 40 stuffed animals. Of the stuffed animals, \(\frac{3}{8}\) are bears and \(\frac{1}{5}\) are dogs. The rest are other animals. How many other animals does she have?

[Terjawab] How do I graph [tex]f(x) = -\cos(x - \pi)[/tex]?

[Terjawab] A packet is dropped from a stationary helicopter, hovering at a height 'h' from the ground level, and reaches the ground in 12 seconds. Calculate: 1) The value of 'h' (displacement) 2) The final velocity of the packet on reaching ground level Assume the acceleration due to gravity is [tex]9.8 \, \text{m/s}^2[/tex]. Please show how you derived your answers.

[Terjawab] A non-metal usually forms 2 covalent bonds in its compounds. How many electrons will it have in its valence shell?

[Terjawab] When you flick a coin so that it slides across a table, it slows down. What is the name of the force that slows it down?

[Terjawab] Which of the following describes the Conquistadors' goals in the New World? Select one: A. Gold - The Conquistadors wanted to get rich. B. God - The Conquistadors wanted to convert Native Americans to Christianity. C. Glory - The Conquistadors wanted to rule empires. D. All of the above.

[Terjawab] Using the laws of indices, simplify the following: \(\sqrt{h} \times \sqrt{h^3}\) =

[Terjawab] Lily and Julian start with the same number. Lily works out half of the number, and Julian works out three-quarters of the number. The sum of their answers is 275. What was the starting number? Explain, please.

[Terjawab] Written in simplest form, the expression [tex]\frac{x^2 y^2 - 9}{3 - xy}[/tex] is equivalent to: 1. -1 2. [tex]\frac{1}{3 + xy}[/tex] 3. -(3 + xy) 4. 3 + xy Please show work.