Questions in mathematics

Questions in mathematics

[Free] Which graph is represented by this equation? [tex]$x+y^2+6 y+3=0$[/tex]

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

[Free] Which graph shows the solution to the inequality $-3x - 7 < 20$?

[Free] The revenue, in dollars, of a company that produces video game systems can be modeled by the expression [tex]$5 x^2+2 x-80$[/tex]. The cost, in dollars, of producing the video game systems can be modeled by [tex]$5 x^2-x+100$[/tex], where [tex]$x$[/tex] is the number of video game systems sold. If profit is the difference between the revenue and the cost, what expression represents the profit? Profit can be modeled by the polynomial expression [ ] If 1,000 video game systems are sold, the company [ ] A. x+20 B. x-180 C. 3x+20 D. 3x-180

[Free] Sum of the series is \[1 + \frac{4}{3} + \frac{9}{3^2} + \frac{16}{3^3} + \ldots \infty\] (A) \(\frac{2}{9}\) (B) \(\frac{9}{2}\) (C) \(\frac{6}{5}\) (D) None of these

[Free] If a 6-digit number 10a82b is divisible by 112, then what is the value of a × b? 1. 30 2. 12 3. 24 4. 18

[Free] Draw a histogram to represent the following data: | Marks | 10 | 20 | 30 | 40 | 50 | 60 | 70 | |---|---|---|---|---|---|---|---| | Frequency | 12 | 32 | 50 | 85 | 45 | 30 | 5 |

[Free] [tex]\frac{5}{6} \times(-\frac{2}{3})-\frac{16}{5} \times \frac{3}{4}+\frac{3}{2} \times(-\frac{7}{9})[/tex]

[Free] Find the number of units sold for May. | | Beginning Inventory | Purchases | Units Sold | | :----- | :------------------ | :-------- | :--------- | | April | 7,500 | 2,000 | 3,000 | | May | 6,500 | 5,000 | {$} | | June | 4,000 | 1,000 | 2,000 |

[Free] Solve for $x$ in the equation $x^2+20 x+100=36$