Recent questions tagged q4

$2\sin ^2\large\frac{3\pi}{4}$$+2\cos^2\large\frac{\pi}{4}$$+2\sec^2\large\frac{\pi}{3}$ =

asked Jul 3, 2018 by pady_1

1 answer

Find out the predecessor of 56602310

asked Oct 19, 2017 by priyanka.c

0 answers

Following logic gate is :

asked Oct 8, 2017 by priyanka.c

1 answer

A U tube with both ends open to the atmosphere, is partially filled rvith u,ater. Oil, which is imeriscible with water, is poured into one side until itstands at a distance of 10 mtrr above the water level on the other side. Meanwhile the water rises by $65\; mm$ from its original level (see diagram). The density of the oil is :

asked Oct 7, 2017 by meena.p

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Find out the number of hours in 4 and half day?

asked Oct 2, 2017 by priyanka.c

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What number must be added to in the following expression to make 1? <br> $\frac{1}{2} + \frac{1}{3} + ...... = 1$

asked Sep 25, 2017 by priyanka.c

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How many seconds are there in 85 minutes?

asked Sep 20, 2017 by priyanka.c

1 answer

Which is more from the following <br> 1) 10 decimeters 2) 10 millimeters 3) 100 millimeters 4)100 decimeters

asked Sep 18, 2017 by priyanka.c

0 answers

Look at the timeline below and answer the question accordingly

asked Sep 7, 2017 by priyanka.c

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A piece of chocolate cake has 400 calories in it. Anita cut a 1 kg of cake for her birthday which has about 35 pieces. How many calories does the cake has in total?

asked Aug 14, 2017 by priyanka.c

1 answer

Which symbol belongs in the circle to make a true number sentence

asked Aug 11, 2017 by priyanka.c

0 answers

Harry's house has 6 tables. He puts 7 plates and 4 glasses in each table. What is the total number for plates and glasses does he put?

asked Aug 4, 2017 by priyanka.c

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A 4.5 cm needle is placed away from a convex mirror of focal length 15 cm . Describe what happens as the needle is moved faster from the mirror.

asked Feb 10, 2016 by meena.p

1 answer

A long straight wire carries a current of $35\;A$ what is the direction of the magnetic field?

asked Jul 22, 2015 by meena.p

1 answer

The earth's field it is claimed roughly approximately the field due to a dipole of magnetic moment $8 \times 10^{22}J/T$ located at its centre. Check the order of magnitude of this number is same way

asked Jul 9, 2015 by meena.p

1 answer

A high tension (HT) supply of say $6\;KV$ must have a very large internal resistance why ?

asked Jun 29, 2015 by meena.p

1 answer

Write the S.I unit of electric field intensity

asked Apr 21, 2015 by meena.p

1 answer

Calculate the molarity of water if its density is $1000g/m^3$

asked Aug 6, 2014 by sreemathi.v

1 answer

Solve the inequality $-15 < \large\frac{3(x-2)}{5} \leq 0$

asked Aug 1, 2014 by meena.p

1 answer

At what angles with X-rays of wavelength $1.542\times 10^{-10}m$ undergo first order and second order reflections by planes separated by $3.5\times 10^{-10}m$?

asked Jul 31, 2014 by sreemathi.v

1 answer

Which of the following statements regarding ferric salts is not correct ?

asked Jul 31, 2014 by thanvigandhi_1

1 answer

Solve the following system of inequalities graphically $x+y \geq 4 ; 2x -y > 0$

asked Jul 30, 2014 by meena.p

1 answer

Solve the given inequality in two - dimensional plane $y+8 \geq 2x$

asked Jul 29, 2014 by meena.p

1 answer

Solve $3 x+8 > 2$ when (i) x is an integer (ii) x is a real number

asked Jul 25, 2014 by meena.p

1 answer

Which of the following statements is not true ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

An arch is in the form of a semi-ellipse. It is 8 m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.

asked Jul 23, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci and the vertices, the eccentricity and the length of the latus rectum of the hyperbolas : $ 16x^2-9y^2=576$

asked Jul 19, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the foci, the vertices, the length of major axis, the minor axis, the eccentricity and the length of the latus rectum of the ellipse : $ \large\frac{x^2}{25}$$+\large\frac{y^2}{100}$$=1$

asked Jul 15, 2014 by thanvigandhi_1

1 answer

Find the coordinates of the focus, axis of the parabola, the equation of the directrix and the length of the latus rectum for the following : $ x^2=-16y$

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the circle with centre (1,1) and radius $ \sqrt 2$

asked Jul 11, 2014 by thanvigandhi_1

1 answer

Given $\bar{x} $ is the mean and $\sigma^2$ is the variance of n observations $x_1,x_2,x_3......x_n$ prove that the mean and variance of the observations $ax_1,ax_2,ax_3.......ax_n$ are $a \bar{x}$ and $a^2\sigma^2$, respectively , $(a\neq 0)$

asked Jul 2, 2014 by meena.p

1 answer

The following is the record of goals scored by team A in a football session. For Team B , mean number of goals scored per match was 2 with a standard deviation 1.25 goals. Find which team may be considered more consistent ?

asked Jul 1, 2014 by meena.p

1 answer

Find the equation of the lines which passes through the point (3, 4) and cuts off intercepts from the coordinate axes such that their sum is 14.

asked Jun 30, 2014 by thanvigandhi_1

1 answer

Find mean and variance of the data:

asked Jun 27, 2014 by meena.p

1 answer

Describe the sample space for the indicated experiment : A coin is tossed and a die is thrown

asked Jun 26, 2014 by sreemathi.v

1 answer

Find the mean deviation about the mean for the data $36,72,46,42,60,45,53,46,51,49$

asked Jun 25, 2014 by meena.p

1 answer

$(\sqrt 3+1)^4+(\sqrt 3-1)^4$ is equal to

asked Jun 25, 2014 by sreemathi.v

1 answer

Find the term independent of $x$ in the expansion of $(3x-\large\frac{2}{x^2})^{15}$

asked Jun 24, 2014 by sreemathi.v

1 answer

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