Questions Asked on July 21, 2016

The answer "use the right-hand rule" isn't working for my brain. I'd really like to understand how t... Asked on July 21, 2016 at 12:17 AM The equation given below models the average monthly temperature (˚C). t denotes the number of month... Asked on July 21, 2016 at 1:01 AM Given that 0 ≤ 𝑥 ≤ 𝜋/2and 0 ≤ 𝑦 ≤𝜋/2 find the exact value of 𝑡𝑎𝑛(𝑥 + 𝑦) if 𝑐𝑜𝑡(𝑥) =6/5 and 𝑠𝑒𝑐(𝑦) =... Asked on July 21, 2016 at 1:23 AM the productivity of a person at work is modeled by a cosine function: 5cos (pie/2 (t)) +5, where t... Asked on July 21, 2016 at 1:29 AM On a map with a scale of 1:12,000, a measured distance of 1 inch represents what distance in feet?... Asked on July 21, 2016 at 1:52 AM For the system, H2(g) + X2(g) <--> 2HX(g), Kc = 24.4 at 300 K. A system was charged with 2.00 moles... Asked on July 21, 2016 at 2:33 AM The atmosphere contains about 5.2 x1015 t of air.  What mass in metric tons of carbon dioxide is in... Asked on July 21, 2016 at 2:52 AM Express each aqueous concentration in the unit indicated. 45 ppm NO3 -, as molarity of nitrate ion... Asked on July 21, 2016 at 2:52 AM For two questions below, first write and balance the equation for the chemical reaction.  Please, al... Asked on July 21, 2016 at 2:53 AM a large closed storage rectangular box with a base constructed with two different types of wood. the... Asked on July 21, 2016 at 3:08 AM