g Which of the following functions are injective? (Choose all that apply.) f1:R→R , given by f1(x)=x . f2:R→R , given by f2(x)=x2 . f3:R→R , given by f3(x)=sin(x) . f4:[0,1]→{probability distributions on{0,1}} , given by f4(p)=Ber(p) .

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.