Questions in mathematics

Questions in mathematics

📝 Answered - What is the domain of the function [tex]y=\sqrt{x}[/tex]? A. [tex]-\inftyB. [tex]0C. [tex]0 \leq x<\inftyD. [tex]1 \leq x<\infty

📝 Answered - CPD is twice as big as APB, and reflex angle is five times as big as APB. Make an equation in x, solve the equation, and find the fair angles.

📝 Answered - Select the correct answer. Solve the equation using the method of completing the square. [tex]2 x^2+16 x-8=0[/tex] A. [tex]x=2 \pm 4 \sqrt{5}[/tex] B. [tex]x=4 \pm 2 \sqrt{5}[/tex] C. [tex]x=-4 \pm 2 \sqrt{5}[/tex] D. [tex]x=-2 \pm 4 \sqrt{5}[/tex]

📝 Answered - Determine the difference. [tex]$\frac{3}{4}-\frac{5}{16}= ?$[/tex]

📝 Answered - Solve [tex]\frac{1}{24} m-\frac{2}{3}=\frac{3}{4}[/tex] for [tex]m[/tex]. A. [tex]m=-12[/tex] B. [tex]m=34[/tex] C. [tex]m=36[/tex] D. [tex]m=12[/tex]

📝 Answered - The composition $D_{0,0,75}(x, y) \cdot D_{0,2}(x, y)$ is applied to $\triangle LMN$ to create $\triangle L''M''N''$. Which statements must be true regarding the two triangles? Check all that apply. $\angle M \cong \angle M^{\prime \prime}$ $\triangle LMN \sim \triangle L ^{\prime \prime} M ^{\prime \prime} N''$ $\triangle LMN \cong \triangle L''M''N''$ The coordinates of vertex $L ^{\prime \prime}$ are ( $-3,1.5$ ). The coordinates of vertex $N ^{\prime \prime}$ are $(3,-1.5)$. The coordinates of vertex $M ^{\prime \prime}$ are (1.5, -1.5).

📝 Answered - Which equation is in standard form? a. [tex]$x+3=-5y$[/tex] b. [tex]$5-x=0$[/tex] c. [tex]$y=3x+6$[/tex] d. [tex]$-8x+3y=12$[/tex]

📝 Answered - In the sequence $6, 11, 16, \ldots$, which term is 236?

📝 Answered - Laura is enrolled in a one semester computer applications class. She achieves grades of $70, 86, 81$, and 83 on the first four exams. The final exam counts the same as the four exams already given. If $x$ represents the grade on the final exam, write an expression that represents her course average. If Laura's average is greater than or equal to 80 and less than 90, she will earn a B in the course. Write a compound inequality that must be satisfied to earn a B and solve the inequality. a. [tex] \begin{array}{l} \frac{70+86+81+83+x}{5} \\ 80 \leq x\ \textless \ 130 \end{array} [/tex] b. [tex] \begin{array}{l} \frac{70+86+81+83+x}{5} \\ 80 \leq \frac{70+86+81+83+x}{5}\ \textless \ 130 \end{array} [/tex] c. [tex]\frac{70+86+81+83+\pi}{5}[/tex]

📝 Answered - Factor the binomial $216 s^2-150$ completely.