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Exponents & Powers

In the standard form, a large number can be expressed as a decimal number between 0 and 1, multiplied by a power of 10.

02/11/2024

Mathematics

7th

Exponents & Powers

In standard form, the number 829030000 is written as K × 108 where K is equal to

(a) 82903 (b) 829.03 (c) 82.903 (d) 8.2903

02/11/2024

Mathematics

7th

Exponents & Powers

In standard form, the number 72105.4 is written as 7.21054 × 10n where n is equal to
(a) 2 (b) 3 (c) 4 (d) 5

02/11/2024

Mathematics

7th

Exponents & Powers

x is a non-zero rational number. Product of the square of x with the
cube of x is equal to the
(a) second power of x (b) third power of x
(c) fifth power of x (d) sixth power of x

02/11/2024

Mathematics

7th

Exponents & Powers

Express 648 in exponential notation.

02/11/2024

Mathematics

7th

Algebraic Expressions

The length of a side of square is given as 2x + 3. Which expression
represents the perimeter of the square?
(a) 2x + 16 (b) 6x + 9 (c) 8x + 3 (d) 8x + 12

02/11/2024

Mathematics

7th

Algebraic Expressions

The expression for the number of diagonals that we can make from
one vertex of a n sided polygon is:
(a) 2n + 1 (b) n – 2 (c) 5n + 2 (d) n – 3

02/11/2024

Mathematics

7th

Algebraic Expressions

The side length of the top of square table is x. The expression for
perimeter is:
(a) 4 + x (b) 2x (c) 4x (d) 8x

02/11/2024

Mathematics

7th

Algebraic Expressions

– b – 0 is equal to
(a) –1 × b (b) 1 – b – 0 (c) 0 – (–1) × b (d) – b – 0 – 1

02/11/2024

Mathematics

7th

Algebraic Expressions

The subtraction of 5 times of y from x is
(a) 5x – y (b) y – 5x (c) x – 5y (d) 5y – x

02/11/2024

Mathematics

7th