Atest consists of 490 true or false questions. if the student guesses on each question, what is the standard deviation of the number of correct answers? round the answer to the nearest hundredth.

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

What term makes it inconsistent y=2x - 4