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Start learning 50% faster. Sign in nowThe 'Earth Summit' had many great achievements: the Rio Declaration and its 27 universal principles, the United Nations Framework Convention on Climate Change (UNFCCC), the Convention on Biological Diversity; and the Declaration on the principles of forest management. The Principles of Forest Management include a number of points are are not legally binding but provide recommendations on sustainable practice.
Two poles are 30 meters and 50 meters high, and the distance between their bases is 20√3 meters. Find the angle of elevation of the top of the taller ...
A man travels the first part of his journey at a speed of 40 km/h and the second part at a speed of 60 km/h. What is the average speed of the man?
A product is marked at ₹1,200. If a discount of 20% is offered, and then a tax of 10% is applied on the discounted price, what is the final price paid...
If x2 - 7x + 1 = 0, then find the value of:
3 + ( x 6 + x 4 + x 2 + 1)/ 7x 3 ...
If |x + 1| + |x − 2| ≥ 4, then x lies in:
12, 26, 54, 96, 150, 222, 306
The ages of two siblings, John and Mary, are in the ratio of 5:3. Five years ago, the sum of their ages was 38 years. What are their current ages?
72, 81, 99, ?, 162, 207
If cos 2θ = 3/4, find the value of sin² θ.
A sum of money becomes ₹7800 after 3 years and ₹8500 after 4 years at simple interest. What is the principal amount?