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What will happen to the volume of the cube, if its edge is (a) tripled (b) reduced to
asked
Jan 17, 2022
in
8th-maths
marks3
chapter11
#sub
0
votes
0
answers
Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `16x^4 –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `(a – b)^2 – (b –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
If p + q = 12 and pq = 22, then find `p^2 +
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(m + n) (m^2 – mn + n^2) = m^3 +
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Find the value of a, if `9a = 76^2 –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Subtract `b (b^2 + b – 7) + 5` from `3b^2 – 8` and find the value of expression obtained for `b = –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
`[2^(–1) + 3^(–1) + 4^(–1)]^0` =
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
`3^5 -: 3^–6` can be simplified as
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
To add the numbers given in standard form, we first convert them into numbers with __
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The usual form for `2.3 xx 10^(-10)` is
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The multiplicative inverse of `(– 4)^(–2) is
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
The multiplicative inverse of `(3/2)^2` is not equal to
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
`(-8/2)^0 =
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
`(–7)^(–4) xx (–7)^2 =
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
The value of `5^(–2)` is equal to
asked
Jan 17, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
Find x so that `(2/9)^3 xx (2/9)^(-6) =
asked
Jan 17, 2022
in
8th-maths
marks2
chapter8
#sub
0
votes
0
answers
By what number should `((-3)/2)^(-3)` be divided so that the quotient may be `(4/27)^(-2)`
asked
Jan 17, 2022
in
8th-maths
marks2
chapter8
#sub
0
votes
0
answers
`(16 xx 10^2 xx 64)/(2^4 xx
asked
Jan 17, 2022
in
8th-maths
marks2
chapter8
#sub
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