HRS - Ask. Learn. Share Knowledge. Logo

Questions in mathematics

[Done] How many groups of [tex]$\frac{3}{8}$[/tex] are in 1?

[Done] Ejercicio 1: En un salón hay 40 estudiantes numerados del 1 al 40. Sean los eventos: - [tex]A=[/tex] {números pares} - [tex]B=[/tex] {números primos } - [tex]C=[/tex] {múltiplos de 3} Determina los elementos de los siguientes conjuntos o sucesos: a) [tex]A \cup B[/tex] b) [tex]A \cap C[/tex] c) [tex]B \cup C[/tex] d) [tex]B \cap C[/tex] e) [tex]A \cap \bar{C}[/tex] Ejercicio 2: En una caja hay 25 bolas numeradas del 1 al 25. Sean los eventos: - [tex]A=[/tex] {números múltiplos de 4} - [tex]B=[/tex] {números múltiplos de 5 } - [tex]C=[/tex] {números mayores que 15} Determina los elementos de: a) [tex]A \cup C[/tex] b) [tex]A \cap B[/tex] c) [tex]B \cup C[/tex] d) [tex]A \cap \bar{C}[/tex] e) [tex]A \cap B[/tex]

[Done] Type the correct answer in the box. Use numerals instead of words. 5 less than a number is equivalent to 1 more than three times the number. The number is

[Done] If [tex]f(x)=3 x^2+1[/tex] and [tex]g(x)=1-x[/tex], what is the value of [tex](f-g)(2)[/tex]?

[Done] Which functions are even? Choose all correct answers. [tex]f(x)=|x|[/tex] [tex]f(x)=x^4-x^2[/tex] [tex]f(x)=x^2-3 x+2[/tex] [tex]f(x)=\sqrt{(x-2)}[/tex]

[Done] What is the value of $r$ of the geometric series? [tex] \sum_{n=1}^3 1.3(0.8)^{n-1} [/tex]

[Done] \frac{k}{k-2}-\frac{8}{k^2-4}

[Done] -20 = \frac{d}{5} - 4

[Done] The figures could be described as _____ if they are the same size and shape, _____ if their corresponding angles are _______ and their corresponding sides are proportional and _________ if they are the same figure, or none of those.

[Done] Suppose [tex]$f(x)$[/tex] is a function such that if [tex]$p\ \textless \ q$[/tex], [tex]$f(p)\ \textless \ f(q)$[/tex]. Which statement best describes [tex]$f(x)$[/tex]? A. [tex]$f(x)$[/tex] can be odd or even. B. [tex]$f(x)$[/tex] can be odd but cannot be even. C. [tex]$f(x)$[/tex] can be even but cannot be odd. D. [tex]$f(x)$[/tex] cannot be odd or even.