Traci collects donations for a dance marathon. one group of sponsors will donate a total of $15 for each hour she dances. another group of sponsors will donate $110 no matter how long she dances. what number of hours should traci dance if she wants to raise at least $500?

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.

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]