sin a= 3/5, a lies in quadrant 1, and sin b = 5/13, b lies in quaternary 2, what is sin(a+b), cos(a+b), and tan(a+b)

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?