a bag contains red discs, black discs and white discs. the number of black discs is equal to the number of white discs. selina is going to take a disc at random from the bag. the probability that she will take a red disc is 0.6. work out the probability that she will take a black disc

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

Could answer every question with steps

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250