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Questions in mathematics

📝 Answered - Which function has an inverse that is also a function? {(-1,-2),(0,4),(1,3),(5,14),(7,4)} {(-1,2),(0,4),(1,5),(5,4),(7,2)} {(-1,3),(0,4),(1,14),(5,6),(7,2)} {(-1,4),(0,4),(1,2),(5,3),(7,1)}

📝 Answered - What is $\frac{\left(x^2 y^3\right)^{\frac{1}{3}}}{\sqrt[3]{x^2 y}}$ in exponential form?

📝 Answered - How many inches should be added to 3 ft to make it 1 m? Write with calculation.

📝 Answered - What is the length of the diagonal of a rectangle that has a base of 16 and height of 12? A) 18 B) 19 C) 20 D) 21

📝 Answered - 1) 9,275 x 4 2) 7,512 x 5 3) 3,362 x 3 4) 1,870 x 4 5) 4,470 x 6 6) 2,632 x 3 7) 5,419 x 5 8) 8,362 x 7 9) 6,007 x 9 10) 1,781 x 4 11) 3,499 x 4 12) 9,186 x 2 13) 3,336 x 5 14) 2,502 x 8 15) 4,661 x 6 16) 1,018 x 9 17) 2,549 x 3 18) 3,982 x 5 19) 5,642 x 7 20) 9,719 x 4

📝 Answered - Given the piecewise function shown below, select all of the statements that are true. [tex]f(x)=\left\{\begin{array}{c}2 x, x\ \textless \ 1 \\ 5, x=1 \\ x^2, x\ \textgreater \ 1\end{array}\right\[/tex] A. [tex]f(1)=5[/tex] B. [tex]f(2)=4[/tex] C. [tex]f(-2)=4[/tex] D. [tex]f(5)=1[/tex]

📝 Answered - Which statements are true? Select three options. The line $x=0$ is perpendicular to the line $y=-3$. All lines that are parallel to the $y$-axis are vertical lines. All lines that are perpendicular to the $x$-axis have a slope of 0. The equation of the line parallel to the $x$-axis that passes through the point $(2,-6)$ is $x=2$. The equation of the line perpendicular to the $y$-axis that passes through the point $(-5,1)$ is $y=1$.

📝 Answered - Which expression is equivalent to $81^{\frac{1}{3}}$ ? A. $3 \sqrt[3]{3}$ B. $3 \sqrt{3^3}$ C. $9 \sqrt[3]{3}$ D. $27 \sqrt[3]{3}$

📝 Answered - What is the value of the 5th term of the expansion $(2 x-4)^4$?

📝 Answered - Which function represents a vertical stretch of an exponential function? [tex]f(x)=3(\frac{1}{2})^x[/tex] [tex]f(x)=\frac{1}{2}(3)^x[/tex] [tex]f(x)=(3)^{2 x}[/tex] [tex]f(x)=3^{(\frac{1}{2} x)}[/tex]