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Questions in Grade College

[Done] Let $A=\{f, o, x\}, B=\{c, o, w\}$. Find $A \times B$ and $B \times A$. $A \times B=\square$ (Type an ordered pair. Use a comma to separate answers as needed.)

[Done] $y=4^{x-5}+3$ The domain of this function is $\square$ . The range of this function is $\square$

[Done] State 4 differences between renewable and non-renewable sources of energy.

[Done] Psychology is defined as the: A. scientific study of behavior and all the external forces that mold our behavior B. scientific study of human and animal behavior influenced by mental processes C. scientific study of mental illnesses and therapy D. scientific study of the structure of the brain

[Done] A company sells 100 units in June. Calculate the cost of goods sold using first-in, first-out. | | Units Received | Unit Cost | |---|---|---| | June 4 | 40 | $1.80 | | June 11 | 70 | $1.50 | | June 18 | 40 | $1.80 | | June 25 | 50 | $1.70 | $[?] per unit

[Done] The premium for 2-day shipping is $40\%. What is the cost to ship 2,000 lbs of goods from Denver to Kansas City (620 miles) using 2-day shipping? | Distance (miles) | $0 - 200$ | $201 - 400$ | $401 - 600$ | $601 - 800$ | $801 - 1000$ | | :--------------- | :-------- | :-------- | :-------- | :-------- | :--------- | | Price per 100 lbs | $100 | $120 | $200 | $240 | $400 |

[Done] A limited-edition poster increases in value each year with an initial value of $18. After 1 year and an increase of 15% per year, the poster is worth $20.70. Which equation can be used to find the value, $y$, after $x$ years? (Round money values to the nearest penny.) A. $y=18(1.15)^x$ B. $y=18(0.15)^x$ C. $y=20.7(1.15)^x$ D. $y=20.7(0.15)^x$

[Done] Which table represents viable solutions for [tex]y=5x[/tex], where [tex]x[/tex] is the number of tickets sold for the school play and [tex]y[/tex] is the amount of money collected for the tickets? School Play Tickets Tickets ([tex]x[/tex]) Money Collected ([tex]y[/tex]) -100 -500 -8 -125 40 250 600 1000 School Play Tickets Tickets ([tex]x[/tex]) Money Collected ([tex]y[/tex]) -20 -100 20 100 100 500 100 545 School Play Tickets Tickets ([tex]x[/tex]) Money Collected ([tex]y[/tex]) 0 0 10 50 51 255 400 2000 School Play Tickets Tickets ([tex]x[/tex]) Money Collected ([tex]y[/tex]) 5 8 85 150 80 400

[Done] Kyle asks his friend Jane to guess his age and his grandmother's age. Kyle says his grandmother is not more than 80 years old. He says his grandmother's age is, at most, 3 years less than 3 times his own age. Jane writes this system of inequalities to represent [tex]k[/tex], Kyle's age, and [tex]g[/tex], Kyle's grandmother's age. Inequality 1: [tex]g\ \textgreater \ 80[/tex] Inequality 2: [tex]g \leq 3 k-3[/tex] Which inequality did Jane write incorrectly, and how could it be corrected? A. Inequality 1 is incorrect; it should be [tex]g \leq 80[/tex]. B. Inequality 1 is incorrect; it should be [tex]g \geq 80[/tex]. C. Inequality 2 is incorrect; it should be [tex]g\ \textless \ 3 k-3[/tex]. D. Inequality 2 is incorrect; it should be [tex]g \geq 3 k-3[/tex].

[Done] $\frac{2+3 \log _2^9+4 \log _2^3-\log _2^{2 \pi}}{3+\log _2^{81}}$