What is the hinge theorem converse used to show?

a. that two triangles are similar
b. the relative lengths of the corresponding sides in two triangles
c. the congruency of adjacent sides
d. the relative measures of the corresponding angles in two triangles

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4