Rappresenta per elencazione l'insieme: a. dei numeri della tastiera di un telefono cellulare \( \rightarrow A= \) b. dei numeri del quadrante di un orologio \( \rightarrow \). c. dei valori delle monete metalliche italiane \( \rightarrow A= \) d. dei pianeti del Sistema Solare \( \rightarrow A= \)

b) \( \left(\frac{3}{2}\right)^{-2}= \)

In the final round of the Western Beking Challenge, Max and Colette must each create a displey of iced cookes. Colette's cookies cooled off first, and she begins icing them at a rate of 3 cookies per minute. Afer Colletie hes iced 12 cookies, Mex starts icing his cookies at a rate of 5 cookies per minute. Socn, he will catch up to Collette and the two will have iced the same number of cookies. Which equation cen you use to find \( m \), the rumber of minutes it will take Max to catch up to Colete? \( 3 m+12=5 m \) \( 5 m+3=12 m \) Hom long will it take Max to catch up to Colette? Simplify ainy fractions. minutes

Learn with an example \( v \) or Watch a video (0) Julia and Lena started reading a science fiction book at the same time. During the first week, Lena read 10 more pages than Julia. The following week, Lena read 14 pages, and Julia read the same number of pages she read the first week. Now they are on the same page. Which equation can you use to find \( j \), the number of pages Julia read during the first week? \( j+10+14=j+j \) How many pages did Julia read during the first week? Submit pages

\( q ( x ) = \frac { \csc x } { e ^ { x } } - e ^ { - x } , \quad a = \frac { \pi } { 6 } \)

1. Realiza las siguientes operaciones: a) \( 3 / 6+4 / 8= \) b) \( 8 / 9+4 / 6= \) c) \( 4 / 8-1 / 4= \) d) \( 6 / 9-1 / 3= \) e) \( 4 / 8 \times 5 / 9= \) f) \( 7 / 9 \times 2 / 4= \) g) \( 6 / 8 \div 2 / 4= \) h) \( 9 / 5 \div 2 / 3= \)