A Stone is dropped from the edge of roof.find the speed of the stone after 2 second
Question
if a(-5 7) b(-4 -5),c(-1,-6) and d(4,5) are the vertices of a quadrilateral, find the area of the quadrilateral abcd
Maths
Sept. 21, 2019, 12:29 p.m.
Answer
Assuming that the petrol burnt per unit time in driving a motorboat varies as the cube of its velocity. Find the most economical speed of the motorboat when running against the current whose speed is a m/s.
Accounts Tax GST
Sept. 21, 2019, 12:13 p.m.
Answer
An article was bought for rupees 650 and sold for rupees 728 find the gain percent
In a bolt factory, machines A. B, C manufacture respectively 25 % , 35 % , 40% of the total. Of their output 5, 4, 2 percent are known to be defective bolts. A bolt is drawn at random from the product and is found to be defective. What are the probabilities that it was manufactured by (i) Machine A. (i) Machine B or C