Questions in Grade High-school

Questions in Grade High-school

[Done] Which natural feature was the most important geographical advantage of the Louisiana Purchase?

[Done] Please help; I'm confused with half-life/compound interest problems. 1. Fermium-252 decays in 10 minutes to 76.1% of its original mass. Find the half-life of fermium-252. 2. How long do you have to wait until 15 mg of beryllium-7 have decayed to 4 mg, if the half-life of beryllium-7 is 53.12 days?

[Done] How did Greek thinkers, artists, and writers explore the nature of the universe and people's place in it?

[Done] If \( x \) is a negative number, which of the following could equal the absolute value of \( x \)? Select all that apply. A. -2 B. 2 C. 4 D. 6

[Done] Simplify the expression: \(-|1-4|\)

[Done] Which structure is the boundary between a living cell and its environment?

[Done] Are wetlands and estuaries more similar or different? Defend your opinion.

[Done] A machine can produce 27 inches of ribbon every 3 minutes. How many feet of ribbon can the machine produce in one hour? Explain.

[Done] How do you prove [tex](3x+2)^2[/tex] is equivalent to [tex](3x+6)(3x-2)+16[/tex]?

[Done] Use the distributive property to expand the expression: \[ 18 \times 3 = (10 + 8) \times 3 \] \[ = 10 \times 3 + 8 \times 3 \] \[ = 30 + 24 \] \[ = 54 \]