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Perform the following divisions: `(x^3y^3 + x^2y^3 – xy^4 + xy) -:
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The area of a rectangle is `x2 + 7x + 12`. If its breadth is (x + 3), then find its
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The sum of (x + 5) observations is `x^4 – 625`. Find the mean of the
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
If m – n = 16 and `m^2 + n^2 = 400`, then find
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Find the value of (i) `(6.25 6.25 –1.75 1.75)/4.5` (ii) `(198 198 –102
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Multiplicative inverse of `2^7`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
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0
answers
If x be any non-zero integer and m, n be negative integers, then `xm xx xn` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
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0
answers
For a non-zero integer x, `x^7 -: x^12` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
`(3/4)^5 -: (5/3)^5` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
Very small numbers can be expressed in standard form by using _________
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
If `36 = 6 xx 6 = 62`, then `1/36` expressed as a power with the base 6 is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
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0
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`(2/3)^(-2) xx (2/3)^(-5) =
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
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0
answers
`(-8/2)^0 =
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
The expression for `4^(–3)` as a power with the base 2 is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
The value of `5^(–2)` is equal to
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
Simplify: -1. `(((-)/2)^(-2))^3 xx (1/3)^(-4) xx 3^(-1) xx
asked
Jan 18, 2022
in
8th-maths
marks2
chapter8
#sub
0
votes
0
answers
Pluto is 59,1,30,00, 000 m from the sun. Express this in the standard
asked
Jan 18, 2022
in
8th-maths
marks2
chapter8
#sub
0
votes
0
answers
Investigating Solar System The table shows the average distance from each planet in our solar system to the sun. (a) Complete the table by expressing the distance from each planet to the Sun in scientific
asked
Jan 18, 2022
in
8th-maths
marks3
chapter8
#sub
0
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0
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The planet Uranus is approximately 2,896,819,200,000 metres away from the Sun. What is this distance in standard
asked
Jan 18, 2022
in
8th-maths
marks3
chapter8
#sub
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