2(x - 5) + 7 = x + 8 what is x represents

An angle that measures between 90 and 180° is called a(,

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

If the value of cos330°is√3/2 then find cos 165°.