The diagram shows a framework ABCD supporting a shop sign. The framework is fixed to a vertical wall AB with CD horizontal.

AC = 64 cm and CD = 80cm.

BAC = 35° t , BCA = 90° t and ACD = 125° t .

(a) Calculate AB

(b) Calculate AD
(c) Calculate ADC

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Find the roots of the equation below. x^2 - 6 + 9 = 0

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?