Subject: Maths, asked 8 hours, 53 minutes ago

## 2?5+3?7 . It seems that question us wrong as it is my holiday homework of math. I guess that there should be ? in the place of+. THERE IS ROOT INSTEAD OF (?). IT IS A GLITCH.

Subject: Maths, asked 9 hours, 1 minute ago

## How is it simplified?

Subject: Maths, asked 10 hours, 7 minutes ago

## How to solve option D

Subject: Maths, asked 10 hours, 9 minutes ago

## Show that there is no positive integer n for which root n-1 + root n+1 is rational.

Subject: Science, asked 10 hours, 15 minutes ago

## 1.(a) Determine the focal length of a spherical mirror which forms three times magnified real image of an object placed 16 cm in front of it. (b) At what distance should an object be placed from a concave mirror of focal length 18 cm to obtain a real image at 24 cm from it. What will be the magnification produced in this case? (c) How far should an object be placed from a concave mirror of focal length 20 cm to obtain its image at a distance of 30 cm from the mirror? What will be the height of the image if the object is 6cm tall?

Subject: Science, asked 10 hours, 17 minutes ago

## A 2.0 cm tall object is placed perpendicular to the principal axis of a convex mirror of focal length 15 cm. At what distance from the mirror, should the object be placed so that it forms an image 10 cm from the lens? Also find the nature and the size of image formed.

Subject: Maths, asked 10 hours, 32 minutes ago

## how do you know if you should add or subtract in elimination? explain with examples.

Subject: Maths, asked 10 hours, 59 minutes ago

## Hello i have a doubt in this question for elimination method why are we multiplying 2 to the second equation? and why cant we use other numbers like 3 , 4 , 5 etc.?

Subject: Science, asked 11 hours, 9 minutes ago

## Zn +NaOH +NaNo3 -------- Na2ZnO2 +NH3 +H2O balance the equation

Subject: Science, asked 11 hours, 39 minutes ago

## Al+ H2SO4 ------Al2(SO4)3+SO2+H2O

Subject: Science, asked 11 hours, 50 minutes ago

## Balance the equation SbCl3 +H2S --------- Sb2S3 + HCl

Subject: Maths, asked 11 hours, 55 minutes ago

## The graphical solution of -3x = 12 and 5y = 13 has

Subject: Maths, asked 12 hours, 9 minutes ago