Questions in mathematics

Questions in mathematics

📝 Answered - Find the value of [tex]$2 x+50$[/tex]

📝 Answered - If [tex]$32 A+3 B=\left[\begin{array}{ll}2 & 3 \\ 4 & 0\end{array}\right]$[/tex] and [tex]$3 A+2 B=\left[\begin{array}{cc}-2 & 2 \\ 1 & -5\end{array}\right]$[/tex], find [tex]$A$[/tex] and [tex]$B$[/tex].

📝 Answered - Express $\frac{2}{3 m-2}-\frac{1}{2 m-3}$ as a single fraction in its lowest terms.

📝 Answered - 1. For statements $p, q$ and $r$, use a truth table to show that each of the following pairs of statements is logically equivalent. a. $(p \wedge q) \Leftrightarrow p$ and $p \Rightarrow q$. b. $p \Rightarrow(q \vee r)$ and $\neg q \Rightarrow(\neg p \vee r)$. c. $(p \vee q) \Rightarrow r$ and $(p \Rightarrow q) \wedge(q \Rightarrow r)$.

📝 Answered - In supply (and demand) problems, [tex]$y$[/tex] is the number of items the supplier will produce (or the public will buy) if the price of the item is [tex]$x$[/tex]. For a particular product, the supply equation is [tex]$y=2 x+525$[/tex] and the demand equation is [tex]$y=-5 x+700$[/tex] What is the intersection point of these two lines? What is the selling price when supply and demand are in equilibrium? price = $ [ ] /item What is the amount of items in the market when supply and demand are in equilibrium? number of items = [ ]

📝 Answered - Select the value that completes the perfect square trinomial: [tex]x^2-14 x+[/tex] ______ A) 28 B) -49 C) -28 D) 49

📝 Answered - The mean of exam scores in a math class was 85 with a standard deviation of 8. (a) Lisa had a score of 95, find her z-score. (b) Jose had a [tex]$z$-score[/tex] of -1.25, find his exam score.

📝 Answered - Coordinate maths question

📝 Answered - Graph the linear relation: [tex]3 x+4 y=12[/tex]

📝 Answered - Is $-2,352 \div 49$ positive or negative?