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Questions in mathematics

[Answered] Find the value of [tex]$b$[/tex] and [tex]$YZ$[/tex] if [tex]$Y$[/tex] is between [tex]$X$[/tex] and [tex]$Z$[/tex]. [tex]\begin{array}{l} X Y=6 b, Y Z=8 b, X Z=175 \\ b=\square \\ Y Z=\square\end{array}[/tex]

[Answered] What are the solutions of the equation $(x+2)^2+12(x+2)-14=0$ ? Use $u$ substitution and the quadratic formula to solve. A. $x=-8 \pm 5 \sqrt{2}$ B. $x=-6 \pm 5 \sqrt{2}$ C. $x=-4 \pm 5 \sqrt{2}$ D. $x=-2 \pm 5 \sqrt{2}$

[Answered] The formula [tex]$s=\sqrt{18 d}$[/tex] can be used to find the speed [tex]$s$[/tex] of a car in miles per hour when the car needs [tex]$d$[/tex] feet to come to a complete stop after stepping on the brakes. If it took a car 25 feet to come to a complete stop after stepping on the brakes, estimate the speed of the car. Estimate the value of [tex]$\sqrt{18 d}$[/tex], when [tex]$d=25$[/tex], to the tenths place.

[Answered] Select all the correct answers. The square of a number is 3 less than four times the number. Which values could be the number? -1 -3

[Answered] Rewrite this radicand as two factors, one of which is a perfect square. $\sqrt{60}$ $\sqrt{4 \cdot 15}$ $\sqrt{12 \cdot 5}$ $\sqrt{20 \cdot 3}$ $\sqrt{10 \cdot 6}$

[Answered] Enter [tex]$\frac{7}{3}$[/tex]: ______ (does not have to be in lowest terms) Enter [tex]$\frac{1}{3}$[/tex]: ______ (does have to be in lowest terms) Enter [tex]$2 \frac{1}{2}$[/tex]: ______

[Answered] What is the inverse of the function [tex]f(x)=2 x-10[/tex]? A. [tex]h(x)=2 x-5[/tex] B. [tex]h(x)=2 x+5[/tex] C. [tex]h(x)=\frac{1}{2} x-5[/tex] D. [tex]h(x)=\frac{1}{2} x+5[/tex]

[Answered] Solve and graph [tex]$3(2 x+1)+4 x\ \textless \ 63$[/tex]

[Answered] Solve $\frac{5}{9} \bullet \frac{3}{10}=?$

[Answered] Which of the following numbers are irrational? [tex]$-2.3456, \frac{\pi}{4}, \sqrt[3]{9}, 2+\sqrt{16}$[/tex] A. -2.3456 and [tex]$2+\sqrt{16}$[/tex] B. -2.3456 and [tex]$\frac{\pi}{4}$[/tex] C. [tex]$\sqrt[3]{9}$[/tex] and [tex]$2+\sqrt{16}$[/tex] D. [tex]$\frac{\pi}{4}$[/tex] and [tex]$\sqrt[3]{9}$[/tex]