Recent questions tagged class8

Simplify :$ (\sqrt 5 )^{-3}(\sqrt 2 )^{-3}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify : $( \sqrt 4 )^{-3}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify $\ bigg( \large\frac{256}{81}\bigg) ^{\Large\frac{5}{4}}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify : $ \large\frac{49 \times t^{-5}}{7^{-3} \times 10 \times t^{-9}}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify : $\large\frac{4^{-3} \times a^{-5} \times b^{-4}}{4^{-5} \times a^{-8} \times b^3}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify $ (a^3 \times a^{-2} \times a^4)^{-2}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify $a^2 \times a^3 \times a^{-5}$

asked Jun 23, 2015 by meena.p

1 answer

If $27^y =\large\frac{9}{3^y} $ find y

asked Jun 23, 2015 by meena.p

1 answer

Simplify $\bigg( \sqrt {x^{-3}}\bigg) ^5$

asked Jun 23, 2015 by meena.p

1 answer

Evaluate : $9^{3/2} -3 \times 5^{0} - \bigg( \large\frac{1}{81} \bigg)^{\large\frac{-1}{2}}$

asked Jun 23, 2015 by meena.p

1 answer

Evaluate : $(3^2)^3 +\bigg(\large\frac{2}{3}\bigg)^0 +3^5 \times \bigg( \large\frac{1}{3}\bigg)^4$

asked Jun 23, 2015 by meena.p

1 answer

Evaluate : $\large\frac{a^{-3} b^{-4}}{a^{-2}b^{-3}}$

asked Jun 23, 2015 by meena.p

1 answer

Find the value of $ \bigg\{(216)^{2/3}\bigg\}^{1/2}$

asked Jun 23, 2015 by meena.p

1 answer

Simplify : $\bigg( \large\frac{3}{7} \bigg)^2 \times \bigg(\large\frac{7}{6}\bigg)^{-3}$

asked Jun 23, 2015 by meena.p

1 answer

By what number should $\bigg( \large\frac{1}{2}\bigg)^{-1} $ be multiplied so that the product is $\bigg(\large\frac{-5}{4} \bigg)^{-1}$?

asked Jun 22, 2015 by meena.p

1 answer

Find the value of m for $5^{2m} \div 5^{-3} =5^5$

asked Jun 22, 2015 by meena.p

1 answer

If $\large\frac{2^x}{1+2^x}=\frac{1}{4}$ then find the value of $\large\frac{8^x}{1+8^x}$

asked Jun 22, 2015 by meena.p

1 answer

If $a^{1/x}=b^{1/y} =c^{1/z},b^2=ac$ then find the value of $ \large\frac{x+z}{2y}$

asked Jun 22, 2015 by meena.p

1 answer

Simplify : $(2^{-1} \times 5^{-1})^{-1} \div 4^{-1}$

asked Jun 22, 2015 by meena.p

1 answer

Express in the form of $\large\frac{p}{q}$

asked Jun 22, 2015 by meena.p

1 answer

Find the reciprocal of $\bigg( \large\frac{2}{3}\bigg) ^6$

asked Jun 22, 2015 by meena.p

0 answers

Find the value of $\bigg( \large\frac{-2}{3} \bigg)^4$

asked Jun 22, 2015 by meena.p

1 answer

Solve $\bigg( \large\frac{3}{8} \bigg)^{-2} \times \bigg( \large\frac{4}{5}\bigg)^{-3}$

asked Jun 22, 2015 by meena.p

1 answer

Find the value of $(512)^{-2/9}$

asked Jun 22, 2015 by meena.p

1 answer

Find the value of $(243)^{2/5}$

asked Jun 22, 2015 by meena.p

1 answer

Solve and find the value of m in $3^{m-3} =\large\frac{1}{9}$

asked Jun 22, 2015 by meena.p

1 answer

Solve and find the value of m in $2^{m-3} =1$

asked Jun 22, 2015 by meena.p

1 answer

Solve : $7^m=343$

asked Jun 22, 2015 by meena.p

1 answer

Simplify $(3^{-2} \times 4^{-2})^{-3}$

asked Jun 22, 2015 by meena.p

1 answer

Evaluate : $(\sqrt{3})^{-4} \times (\sqrt 3 )^{-2}$

asked Jun 22, 2015 by meena.p

1 answer

Evaluate : $8^9 \div 8^3$

asked Jun 22, 2015 by meena.p

1 answer

Evaluate : $\bigg( \large\frac{2}{7} \bigg)^{-5}$

asked Jun 22, 2015 by meena.p

1 answer

Evaluate : $5^{-4}$

asked Jun 22, 2015 by meena.p

1 answer

The diagonal of a rhombus are

asked Jun 20, 2015 by meena.p

1 answer

Which of the following shape has two dimensions?

asked Jun 20, 2015 by meena.p

1 answer

The dimensions of a cubord are in the ratio of $1:2: 3$ and its total surface are is $88 \;m^2$ Find its dimensions.

asked Jun 20, 2015 by meena.p

1 answer

Find the surface area of a chalk box whose length , breadth and height are $16\;cm,8\;cm,and 6\;cm$ respectively

asked Jun 20, 2015 by meena.p

1 answer

PQRS is a quadrilateral in which $PQ= 4\;cm; QR= 9.2\;cm;Rs=8\;cm; SP= 6\;cm; \angle {PSR} =\angle {PQR} =90^{\circ}$ Find its area

asked Jun 20, 2015 by meena.p

1 answer

A rectangular piece of paper of dimensions $22\;cm$ by $12\;cm$ is rolled along its length to form a cylinder. Find the volume of the cylinder so formed .

asked Jun 20, 2015 by meena.p

1 answer

An open rectangular custern when measured outside is $1.35\;m$ long $1.08\;m$ broad and $90\;cm$ deep and is made of iron which is $2.5\;cm$ thick . Find the capacity of the custern and the volume of the iron used

asked Jun 20, 2015 by meena.p

1 answer

A field is $80\;cm$ long and $50\;cm$ broad . In one corner of the field , a pit . Which is 10 cm long , $7.5 \;m$ broad and 8 m deep has been dug out. The earth taken out of it is even by spread over the remaining part of the field. Find the ruse in the ;level of the field.

asked Jun 20, 2015 by meena.p

1 answer

How many bricks will be required for a wall which is $8\;m$ long $6\;m$ high and $22.5 \;cm$ thick if each bricks measures $25\;cm \times 11.25\;cm \times 6\;cm$?

asked Jun 18, 2015 by meena.p

1 answer

Find the volume of a cube whose total surface area is $384\;cm^2$

asked Jun 18, 2015 by meena.p

1 answer

What is the volume of a sphere whose radius is $3\;cm$

asked Jun 18, 2015 by meena.p

1 answer

What is the lateral surface area of a cube of side $5\;cm$

asked Jun 18, 2015 by meena.p

1 answer

What is the total surface area of a cuibord of dimensions $4\;cm,5\;cm$ and $6\;cm$

asked Jun 18, 2015 by meena.p

1 answer

If each side of an equilateral triangle is doubled , then its area becomes how many times.

asked Jun 18, 2015 by meena.p

1 answer

The area of a rhombus is $240 \;cm^2$ If one of its diagonals is $16\;cm$. What the length of its other diagonal is

asked Jun 18, 2015 by meena.p

1 answer

The area of three adjacent faces of cubord are $180 \;cm,96\;cm^2$ and $120\;cm^2$. What is the volume of the cubord?

asked Jun 18, 2015 by meena.p

1 answer

A following has a shape of a parallelogram Whose box is $28\;cm$ and the corresponding height is $20\;cm$ how many such tiles are required to cover a floor of a area $2800\;cm^2$

asked Jun 18, 2015 by meena.p

1 answer

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