Questions in mathematics

Questions in mathematics

📝 Answered - \frac{x^2-8 x+15}{5 x^2+10 x}+\frac{x^2-9}{10 x^2} \times \frac{x^2+5 x+6}{2 x-10}

📝 Answered - What is the value of $x$ in the equation $\frac{1}{2} x-\frac{3}{4}=\frac{3}{8}-\frac{5}{8} x $?

📝 Answered - [tex]f(x) = \frac{9}{(4x^2 + 3x)^{\frac{3}{2}}}[/tex]

📝 Answered - 6 x 1 = 6 66 x 61 = 666 x 661 = 6666 x 6661 = 66666 x 66661 = 666666 x 666661 = 6666666 x 6666661 =

📝 Answered - -18 - \{-14 + (-16 - 4 ÷ 2 × 5)\}

📝 Answered - 33 x 335 = 333 x 3335 = 3333 x 33335 = 33333 x 333335 = 333333 x 3333335 =

📝 Answered - Match each expression to its simplified form. [tex]$(6 r+7)+(13+7 r)$[/tex] [tex]$(13-\frac{3}{2} r)-(1-r)$[/tex] [tex]$(-8-r)+(2 r-4)$[/tex] [tex]$(7 r-\frac{3}{2})-(\frac{2}{3}+6 r)$[/tex] [tex]$12-\frac{1}{2} r$[/tex] [tex]$r-\frac{13}{6}$[/tex] [tex]$13 r+20$[/tex] [tex]$-12+r$[/tex]

📝 Answered - Which of the following best explains why [tex]$\cos \frac{2 \pi}{3} \neq \cos \frac{5 \pi}{3}$[/tex] ? A. The angles do not have the same reference angle. B. Cosine is negative in the second quadrant and positive in the fourth quadrant. C. Cosine is positive in the second quadrant and negative in the fourth quadrant. D. The angles do not have the same reference angle or the same sign.

📝 Answered - What is the following sum? [tex]$5 x\left(\sqrt[3]{x^2 y}\right)+2\left(\sqrt[3]{x^5 y}\right)$[/tex] A. [tex]$7 x\left(\sqrt[6]{x^2 y}\right)$[/tex] B. [tex]$7 x^2\left(\sqrt[6]{x y^2}\right)$[/tex] C. [tex]$7 x^2\left(\sqrt[3]{x y^2}\right)$[/tex] D. [tex]$7 x\left(\sqrt[3]{x^2 y}\right)$[/tex]

📝 Answered - What is the solution to the equation $\frac{1}{x}=\frac{x+3}{2 x^2}$? A. $x=-3$ B. $x=-3$ and $x=0$ C. $x=0$ and $x=3$ D. $x=3$