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Exponents & Powers

Very large numbers can be expressed in standard form by using _________ exponents.

03/11/2024

Mathematics

8th

Exponents & Powers

Very small numbers can be expressed in standard form by using _________ exponents.

03/11/2024

Mathematics

8th

Exponents & Powers

For a fixed base, if the exponent decreases by 1, the number becomes
(a) One-tenth of the previous number.
(b) Ten times of the previous number.
(c) Hundredth of the previous number.
(d) Hundred times of the previous number.

03/11/2024

Mathematics

8th

Exponents & Powers

In question, state whether the statement are true (T) or false (F)

Very small numbers can be expressed in standard form using positive exponents.

03/11/2024

Mathematics

8th

Exponents & Powers

The distance between earth and sun is 150 million kilometres which can be written in exponential form as _______.

03/11/2024

Mathematics

8th

Algebraic Expression, Identities & Factorisation

What should be added to 4c (– a + b + c) to obtain 3a (a + b + c) – 2b (a – b + c)?

03/11/2024

Mathematics

8th

Algebraic Expression, Identities & Factorisation

The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30 units?

03/11/2024

Mathematics

8th

Algebraic Expression, Identities & Factorisation

The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x =10, find the amount paid by him.

03/11/2024

Mathematics

8th

Algebraic Expression, Identities & Factorisation

In question, state whether the statement are true (T) or false (F)

abc + bca + cab is a monomial.

03/11/2024

Mathematics

8th

Algebraic Expression, Identities & Factorisation

In question, state whether the statement are true (T) or false (F)

The difference of the squares of two consecutive numbers is their sum.

03/11/2024

Mathematics

8th