According to the graph, how many students received an 90 for their first semester grade? A: 0
B: 2
C: 6
D: 15

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.

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

What fraction is equivalent to 0.46464646··· a. 46⁄99 b. 46⁄999 c. 46⁄100 d. 23⁄50