Which of the following is NOT true? A) 4 x 1/2 = 4/1 x 1/2

B) 1/2 divide 4 = 1/2 x 1/4

C) 4 divide 1/2 = 4 x 2

D) 1/2 divide 4 = 1/2 x 4/1

Please help!! :/

F(x)=|x| is shifted down 4 units and to the right 3 units.

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?