8. Solve for x, and express your answer to one decimal place. a) cos 45º
c) tan 75°
e) cos 60°
b) sin 62°
d) tan 80°
f) sin 45°

How is working backward similar to solving an equation?

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?

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?