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Verify the identity property for addition and multiplication for the rational numbers `15/19` and `(-18)/25`
Concept: undefined >> undefined
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If x2 – y2 = 16 and (x + y) = 8 then (x – y) is ___________
Concept: undefined >> undefined
Factorise the following expressions
c2 – 4c – 12
Concept: undefined >> undefined
The factors of x2 – 5x + 6 are (x – 2)(x – p) then the value of p is ______.
Concept: undefined >> undefined
Construct the following trapeziums with the given measures and also find their area.
AIMS with `bar("AI") || bar("SM")`, = 6 cm, IM = 5 cm, AM = 9 cm and MS = 6.5 cm
Concept: undefined >> undefined
The value of m in the equation 8m = 56 is ________
Concept: undefined >> undefined
The value of p in the equation `(2"p")/3` = 10 is ________
Concept: undefined >> undefined
Match the following :
| Column A | Column B |
| (a) `x/2` = 10 | (i) x = 4 |
| (b) 20 = 6x − 4 | (ii) x = 1 |
| (c) 2x − 5 = 3 − x | (iii) x = 20 |
| (d) 7x − 4 − 8x = 20 | (iv) x = `8/3` |
| (e) `4/11 - x = (-7)/11` | (v) x = −24 |
Concept: undefined >> undefined
Construct the following trapeziums with the given measures and also find their area.
CUTE with `bar("CU") || bar("ET")`, CU = 7 cm, ∠UCE = 80° CE = 6 cm and TE = 5 cm
Concept: undefined >> undefined
The ones digit in the square of 77 is ___________
Concept: undefined >> undefined
When a square number ends in 6, its square root will have 6 in the unit’s place
Concept: undefined >> undefined
A square number will not have odd number of zeros at the end
Concept: undefined >> undefined
There is a large square portrait of a leader that covers an area of 4489 cm2. If each side has a 2 cm liner, what would be its area?
Concept: undefined >> undefined
Factorise the following by taking out the common factor
18xy – 12yz
Concept: undefined >> undefined
Factorise the following by taking out the common factor
9x5y3 + 6x3y2 – 18x2y
Concept: undefined >> undefined
Construct the following trapeziums with the given measures and also find their area.
ARMY with `bar("AR") || bar("YM")`, AR = 7 cm, RM = 6.5 cm ∠RAY = 100° and ∠ARM = 60°
Concept: undefined >> undefined
The number of non-square numbers between 242 and 252 is ______
Concept: undefined >> undefined
The number of perfect square numbers between 300 and 500 is ______
Concept: undefined >> undefined
The number of zeros in the square of 91000 is 9
Concept: undefined >> undefined
