A sandwich bar allows customers to construct their own sandwiches by choosing from 4 kinds of buns, 3 kinds of condiments, kinds of veggies, and 5 kinds of meats. How many different sandwiches consisting of one bun type, one condiment type, one veggie type and one meat type could be created? number of sandwiches =

Given the following function, find \( f(-2), f(0) \), and \( f(3) \), \( f(x)=-2 x-1 \) \( f(-2)=\square \) \( f(0)=\square \) \( f(3)=\square \)

L'espressione \[ f(x)=\left\{\begin{array}{ll}x & \text { se } x \leq 2 \\ \sqrt{x-1} & \text { se } x \geq 2\end{array}\right. \] non indica una funzione. Perché?

orking Out (b) The difference of \( t \) and 35 and the result is multiplied by 7 . Working Out

Use polynomial long division to rewrite the following fraction in the form \( q(x)+\frac{r(x)}{d(x)} \), where \( d(x) \) is the remainder. \[ \frac{3 x^{5}+x^{4}-19 x^{3}-5 x^{2}+20 x}{x^{3}-5 x} \]

e) \( \log _{x^{2}-1}(x-1) \)