Work out the number of tonnes of recycled wood which the furniture industry used for the following ratios and total weights. (New wood : Recycled wood)
1. 78 tonnes total, 15:7
2. 27 tonnes total, 3:2
3.46 tonnes total, 23:16
4. 89 tonnes total, 13:6
5. 12 tonnes total, 19:12

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

What is the measure of angle x? answer

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me