IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in mathematics

[Answered] Lila made a triangular flag to cheer on her favorite sports team. The perimeter of the flag is 20 inches. The sides of the flag are 8 in and 8 in. Approximately how many square inches of fabric were used to make the triangular flag? A. 15 square inches B. 76 square inches C. 186 square inches D. 215 square inches Heron's formula: Area = [tex]$\sqrt{s(s-a)(s-b)(s-c)}$[/tex]

[Answered] Write the domain in interval notation of each function: a. [tex]$y=x^2+7$[/tex] b. [tex]$g(x)=\frac{3 x-2}{(x+6)(x-4)}$[/tex] c. [tex]$f(x)=\sqrt{x-2}$[/tex] d. [tex]$y=\frac{1}{\sqrt{5-x}}$[/tex] e. [tex]$h(x)=\frac{x}{x^2-2 x}$[/tex] f. [tex]$f(x)=\frac{5}{x+4}-\frac{2}{x}$[/tex] g. [tex]$y=\frac{1}{x^2+6}$[/tex] h. [tex]$g(x)=\frac{\sqrt{8-x}}{(x+4)(x^2+1)}$[/tex]

[Answered] Functions in Symbolic Form [tex]$2+12 x+8$[/tex] [tex]$g (x)$[/tex] -1 0 8 64 125 Determine the function's value when [tex]$x=-1$[/tex]. [tex]$g(-1)=-3$[/tex] [tex]$g(-1)=0$[/tex] [tex]$g(-1)=1$[/tex] [tex]$g(-1)=27$[/tex]

[Answered] Solve the equation. [tex]4(3 x+7)=-32+36[/tex] [tex]x=\square[/tex] (Simplify your answer.)

[Answered] 2. $\left{\begin{array}{l}25,-17,-\frac{12}{5}, \sqrt{9}, 3.12, \frac{1}{2} \pi, 18,-11.1,13 \\ A\end{array}\right\}$ a. Natural Numbers: $\{13,18,25\}$ b. Whole Numbers: c. Integers: d. Rational Numbers: e. Irrational Numbers:

[Answered] Choose the equation that represents the solutions of [tex]$0=0.25 x^2-8 x$[/tex]. [tex]$x=\frac{0.25 \pm \sqrt{(0.25)^2-(4)(1)(-8)}}{2(1)}$[/tex] [tex]$x=\frac{-0.25 \pm \sqrt{(0.25)^2-(4)(1)(-8)}}{2(1)}$[/tex] [tex]$x=\frac{8 \pm \sqrt{(-8)^2-(4)(0.25)(0)}}{2(0.25)}$[/tex] [tex]$x=\frac{-8 \pm \sqrt{(-8)^2-(4)(0.25)(0)}}{2(0.25)}$[/tex]

[Answered] The volume [tex]$V$[/tex] of a rectangular prism is 1440 cubic centimeters. The width [tex]$w$[/tex] of the prism is 12 centimeters, and the height [tex]$h$[/tex] of the prism is 5 centimeters. Use the formula [tex]$V=\ell w h$[/tex] to find the length [tex]$\ell$[/tex] of the prism.

[Answered] Use your calculator to work out the value of $\frac{2.12 \times 5.2}{9.21-2.8}$ Write down your answer to three significant figures.

[Answered] What is the factorization of [tex]$121 b^4-49$[/tex]? A. [tex]$(11 b-7)(11 b-7)$[/tex] B. [tex]$(11 b+7)(11 b-7)$[/tex] C. [tex]$\left(11 b^2-7\right)\left(11 b^2-7\right)$[/tex] D. [tex]$\left(11 b^2+7\right)\left(11 b^2-7\right)$[/tex]

[Answered] Simplify the following algebraic expression: $4(3 x-4)-\frac{1}{3}(15 x-12)=$