Questions in Grade College

Questions in Grade College

[Done] If [tex]$f(x)$[/tex] and [tex]$f^{-1}(x)$[/tex] are inverse functions of each other and [tex]$f(x)=2 x+5$[/tex], what is [tex]$f^{-1}(8)$[/tex]?

[Done] Which sport did not originate in Ancient Asia? A. Martial arts B. Archery C. Swimming D. Version of soccer

[Done] Factor the trinomial completely. $10 m^6 n+9 m^5 n^2+2 m^4 n^3$

[Done] Determine whether the relation is a function. Give the domain and range for the relation. {(6, 8), (6, 9), (6, 10)} The domain of the relation is (Use a comma to separate answers as needed.)

[Done] Explica tu punto de vista acerca de la utilidad de la lengua escrita para la humanidad.

[Done] Korey is planning to open a comic book store. His store will cost $12,500 to open and will come with an $8,000 total annual operational cost. If his store makes $12,000 in profit during the first year, and profits increase by 6% each year from then, how long will it take for Korey to see an overall profit in his business (where total profits exceed total expenses)? [tex]A=P(1+r)^t[/tex] A. Korey will see an overall profit in his first year of business. B. Korey will see an overall profit in his second year of business. C. Korey will see an overall profit in his third year of business. D. Korey will see an overall profit in his fourth year of business.

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Which line is parallel to the line [tex]$8 x+2 y=12$[/tex]?

[Done] Factor the following expression: [tex]$2 x^2-11 x+9$[/tex]

[Done] Dan is promoted to salary level 2, receives a 2% cost-of-living increase and a 10% merit bonus. What is Dan's new salary?