IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in mathematics

[Answered] 4 taps can fill a storage tank in 50 minutes. How long would it take 10 taps to fill the same storage tank?

[Answered] Solve the following equation. $2\left(\begin{array}{lll} 1 & -1 & 3 \\ 2 & -7 & 5 \end{array}\right)+X=3\left(\begin{array}{rrr} 1 & 2 & -4 \\ 3 & -5 & 1 \end{array}\right)$ 8. Solve : $\left(\begin{array}{ll}1 & 2 \\ 3 & 4\end{array}\right)-3 X=2\left(\begin{array}{rr}-4 & 7 \\ 3 & 8\end{array}\right)$ 9. Solve: $\left(\begin{array}{ll}2 & 3 \\ 4 & 5\end{array}\right)+ X =\left(\begin{array}{rr}4 & -1 \\ 3 & 2\end{array}\right)$ 10. Solve the following equations. (a) $2 X+\left(\begin{array}{rr}3 & 4 \\ -6 & 1\end{array}\right)=\left(\begin{array}{ll}7 & 6 \\ 2 & 1\end{array}\right)$ (b) $\left(\begin{array}{rr}-2 & -1 \\ 5 & 0\end{array}\right)-3 X=\left(\begin{array}{rr}4 & -8 \\ 2 & 6\end{array}\right)$

[Answered] Which is equivalent to $\sqrt[4]{9}^{\frac{1}{2} x}$ ? A. $9^{2 x}$ B. $9^{\frac{1}{6} x}$ C. $\sqrt{9}{ }^x$ D. $\sqrt[6]{9} x^x$

[Answered] Simplify the complex fraction. Use either method. $\frac{\frac{1}{y}-\frac{1}{x}}{\frac{1}{y^2}+\frac{1}{x^2}}$

[Answered] Find the limit, if it exists. $\lim _{x \rightarrow \infty} \frac{7}{2 x+\sin (x)}$

[Answered] Maria will pick two red marbles from a bag containing 4 red marbles, 2 white marbles, and 2 black marbles. Consider the following compound events: Maria will pick two red marbles if she returns the first marble: [tex]P((\text { red })) P((\text { red }))=\left(\frac{4}{8}\right)\left(\frac{4}{8}\right)[/tex] Maria will pick up two red marbles in a row if she did not replace the first marble: [tex]P((\text { red })) P((\text { red }))=\left(\frac{4}{8}\right)\left(\frac{3}{7}\right)[/tex]

[Answered] \(\left(\sqrt{x}^3\right)^{\frac{2}{3}}\)

[Answered] What is the $y$-intercept of the graph of the function $f(x)=x^2+3 x+5$? A. $(0,-5)$ B. $(0,-3)$ C. $(0,3)$ D. $(0,5)$

[Answered] Solve the system of equations. [tex] \begin{array}{l} y=x^2+13 x-49 \\ y=10 x-21 \end{array} [/tex]

[Answered] Solve the logarithmic equation. [tex]\log _6 x+\log _6 21=1[/tex] x = (Simplify your answer. Type an exact answer, using $e$ as needed.)