Questions in mathematics

Questions in mathematics

📝 Answered - Express 19,796 correct to two decimal places, one significant figure, and the nearest whole number.

📝 Answered - If [tex]$\sin \theta=\frac{4}{9}, \theta$[/tex] in quadrant II, find the exact value of (a) [tex]$\cos \theta$[/tex] (b) [tex]$\sin \left(\theta+\frac{\pi}{6}\right)$[/tex] (c) [tex]$\cos \left(\theta-\frac{\pi}{3}\right)$[/tex] (d) [tex]$\operatorname { t a n } \left(\theta+\frac{\pi}{4}\right)$[/tex] Which of the following is the correct answer? A. B. C.

📝 Answered - What graph shows the correct solution for the following system of linear inequalities? [tex] \begin{array}{l} y-x \geq 5 \\ y-2 x\ \textgreater \ 3 \end{array} [/tex]

📝 Answered - Solve $5 x-c=k$ for $x$. A. $x=\frac{k+c}{5}$ B. $x=5(k-c)$ C. $x=5(k+c)$ D. $x=\frac{k-c}{5}$

📝 Answered - Find the first and second derivatives at the point $(1,2)$, given the function shown below. [tex]\begin{array}{c} y^3+2 y-6 x^2+5=11 x^3 \\ y^{\prime}=[?] \\ y^{\prime \prime}= \end{array}[/tex]

📝 Answered - Determine the difference of $3.2 \times 10^{10}-1.1 \times 10^{10}$. Write your answer in scientific notation. A) $4.3 \times 10^{10}$ B) $2.1 \times 10^0$ C) $2.1 \times 10^{10}$ D) $4.3 \times 10^0$

📝 Answered - For the inverse variation equation [tex]xy=k[/tex], what is the constant of variation, [tex]k[/tex], when [tex]x=-3[/tex] and [tex]y=-2[/tex] ? A. -6 B. -[tex]\frac{2}{3}[/tex] C. [tex]\frac{3}{2}[/tex] D. 6

📝 Answered - Find the inverse of the function [tex]$f(x)=2 x+5$[/tex]. Find [tex]$f^{-1}(x)$[/tex]

📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

📝 Answered - Solve the equation [tex]$\sqrt{x+4}-3=1$[/tex] for the variable. Show each step of your solution process.