-9 -10-3- - -9 -10-2- in usual form is given by -9000-09900-99000-9900-09

The correct option is A 9000.09Note that 9× 10^ 2=9×1/100=0.09 . Thus, the usual forms of the expressions 9 ×10^3 and 9 ×10^ 2 are given by 9000 and 0.09 respe ...

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Standard VIII

Mathematics

Expanded Form of a Number

(9 ×10^3) + (...

Question

$(9 \times 10^{3}) + (9 \times 10^{- 2})$ in usual form is given by ___.

9000.09

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900.9

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9000.9

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900.09

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Solution

The correct option is A 9000.09
Note that $9 \times 10^{- 2} = 9 \times \frac{1}{100} = 0.09 .$
Thus, the usual forms of the expressions $9 \times 10^{3}$ and $9 \times 10^{- 2}$ are given by $9000$ and $0.09$ respectively.
$∴ (9 \times 10^{3}) + (9 \times 10^{- 2}) = 9000 + 0.09 = 9000.09.$

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Similar questions

Q. Question 2(iv)
Express the following numbers in usual form:

1.0001 \times 10^{9}

Write the numeral whose expanded form is given below:
(i) $6 \times 10^{4} + 3 \times 10^{3} + 0 \times 10^{2} + 7 \times 10^{1} + 8 \times 10^{0}$
(ii) $9 \times 10^{6} + 7 \times 10^{5} + 0 \times 10^{4} + 3 \times 10^{3} + 4 \times 10^{2} + 6 \times 10^{1} + 2 \times 10^{0}$
(iii) $8 \times 10^{5} + 6 \times 10^{4} + 4 \times 10^{3} + 2 \times 10^{2} + 9 \times 10^{1} + 6 \times 10^{0}$

$(9 \times 10^{3}) + (9 \times 10^{- 2})$ in usual form is given by ___.

The value of $(9 \times 10^{- 2}) + (9 \times 10^{3})$ is given by:

Q. Express in usual form

1.0001 \times 10^{9}

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(9×103)+(9×10−2) in usual form is given by ___.

The correct option is A 9000.09Note that 9×10−2=9×1100=0.09 . Thus, the usual forms of the expressions 9×103 and 9×10−2 are given by 9000 and 0.09 respectively. ∴(9×103)+(9×10−2)=9000+0.09=9000.09.

$(9 \times 10^{3}) + (9 \times 10^{- 2})$ in usual form is given by ___.

The correct option is A 9000.09
Note that $9 \times 10^{- 2} = 9 \times \frac{1}{100} = 0.09 .$
Thus, the usual forms of the expressions $9 \times 10^{3}$ and $9 \times 10^{- 2}$ are given by $9000$ and $0.09$ respectively.
$∴ (9 \times 10^{3}) + (9 \times 10^{- 2}) = 9000 + 0.09 = 9000.09.$