The diagonal of the tv screen is given by: d = root ((w) ^ 2 + (h) ^ 2) Where, w: width h: height In addition we have the following relationship: h / w = 8/15 Thus, For the width: d = root ((w) ^ 2 + ((8/15) w) ^ 2) For the high: d = root (((15/8) h) ^ 2 + (h) ^ 2) Answer: The expressions for the width and height of a wide-screen tv in terms of the length of its diagonal are: d = root ((w) ^ 2 + ((8/15) w) ^ 2) d = root (((15/8) h) ^ 2 + (h) ^ 2)
She took 1 1/2 minutes to make 4 cakes. You can multiply 3/4 by 2. You get 6/4 = 1 2/4 = 1 1/2. You can also add 3/4 + 3/4. That is 6/4 = 1 2/4 = 1 1/2. Hope it helped.
