Questions in mathematics

Questions in mathematics

📝 Answered - Complete the table by indicating whether the numerical value in each equation is a perfect square. If it isn't a perfect square, indicate which perfect squares it is between. | Equation | Is it a perfect square? | If not, which perfect squares does it lie between? | |---|---|---| | [tex]x^2=16[/tex] | | | | [tex]x^2=8[/tex] | | | | [tex]x^2=20[/tex] | | | | [tex]x^2=49[/tex] | | | | [tex]x^2=121[/tex] | | | | [tex]x^2=80[/tex] | | |

📝 Answered - Solve the system of equations. [tex] \begin{array}{l} y=5 x-8 \\ y=4 x-7 \end{array} [/tex]

📝 Answered - Rabbit populations can double (increase by $100\%$) every 30 days. If there are 10 rabbits on a farm, how many rabbits will be on the farm after 120 days? Future Amount = [?](1 + [])

📝 Answered - Select the correct answer. The concession stand at the high school football stadium sells hot dogs and hamburgers to raise money for the high school athletic programs. Each hot dog sold earns the programs $0.50, and each hamburger sold earns $0.75. This week, the concession stand sold a combination of 230 hot dogs and hamburgers and earned $138.50 for the athletic programs. If $x$ represents the number of hot dogs sold and $y$ represents the number of hamburgers sold, which system of equations represents this situation? A. $0.75 x+0.50 y=230$ $x+y=138.50$ B. $0.50 x+0.75 y=138.50$ $x+y=230$ C. $0.75 x+0.50 y=138.50$ $x+y=230$ D. $0.50 x+0.75 y=230$ $x+y=138.50

📝 Answered - Use the graph to determine the solution of the inequality [tex] |x+1|+2 \textgreater \ 5 [/tex].

📝 Answered - Find the volume of a rectangular prism if the length is [tex]$2x$[/tex], the width is [tex]$4x^2$[/tex], and the height is [tex]$2x^2+x+7$[/tex]. Use the formula [tex]$V=l \cdot w \cdot h$[/tex], where [tex]$l$[/tex] is length, [tex]$w$[/tex] is width, and [tex]$h$[/tex] is height, to find the volume. A. [tex]$8x^6+8x^4+56x^3$[/tex] B. [tex]$8x^5+8x^4+56x^3$[/tex] C. [tex]$16x^6+8x^4+56x^3$[/tex] D. [tex]$16x^5+8x^4+56x^3$[/tex]

📝 Answered - Solve for $x$. $9(x+1)=25+x$

📝 Answered - Which expressions, when simplified, have a value of $16 ?$ (Select all that apply.) [tex]2 \sqrt{64}[/tex] [tex]8^2[/tex] [tex]2 \sqrt{8}[/tex] [tex]2^4[/tex]

📝 Answered - Simplify $-2xy + 3x - 2xy + 3x$ A) $-4xy + 6x$ B) $4xy + 6x$ C) $4xy - 6x$ D) $2xy

📝 Answered - Change the improper fraction into an equal mixed number. [tex]$\frac{41}{9}$[/tex]