A CFL tube light stays lit for 6000 hours while a normal bulb stays for 1000 hours.If a shop requires 3 CFLs in a year.How many bulbs would it need in a year?
Question
A CFL tube light stays lit for 6000 hours while a normal bulb stays for 1000 hours.If a shop requires 3 CFLs in a year.How many bulbs would it need in a year?
Maths
Feb. 21, 2018, 7:36 p.m.
Answer
the focus of a parabolic mirror is at a distance of 6 cm from the vertex. if the mirror is 20 cm deep ,find the vertical diameter of the mirror.
Maths
Feb. 21, 2018, 7:34 p.m.
Answer
Two vertices of a triangle are (-9,7) and (8,13) and it's centroid is at the origin. Find the third vertex.
A man pays a bill of RS. 2400 by paying RS.25 in the first month and then increase the payment by RS. 10 every month. How long dose it take him to clear the bill.
Accounts Tax GST
Feb. 21, 2018, 5:45 p.m.
Answer
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Maths
Feb. 21, 2018, 4:11 p.m.
Answer
https://www.teachoo.com/question/13711/Cos20%C2%B0cos40%C2%B0cos60%C2%B0cos80%C2%B0=1-16/
Maths
Feb. 21, 2018, 2:53 p.m.
Answer
Prove that the tangents drawn from end point of a chord of a circle makes equal angles with the chord
Prove that the tangents drawn from end point of a chord of a circle makes equal angles with the chord