Mrs. McKinney asked her students to create an expression that includes the distributive property and simplifies to - 10x + 20. Circle the name of any student who correctly completed the task. ​

Find the cosine function that is represented in the graph.

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.