9 - 10-2-9 - 103 in usual form is given as

The correct option is B 0.00009 The usual forms of the expressions 9 ×10^ 2 and 9 ×10^3 are given as 0.09 and 9000. Thus, 9000 + 0.09 = 9000.09. ...

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Standard VII

Mathematics

Exponents

9 × 10-2+9 × ...

Question

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

0.00009

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0.000009

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90 × 10^-4

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0.009 × 10^-4

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Solution

The correct option is A
0.00009

The usual forms of the expressions $9 \times 10^{- 2}$ and $9 \times 10^{3}$ are given as 0.09 and 9000.
Thus, 9000 + 0.09 = 9000.09.

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Similar questions

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

Q. Express 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) $8 \times 10^{5} + 6 \times 10^{4} + 4 \times 10^{3} + 2 \times 10^{2} + 9 \times 10^{1} + 6 \times 10^{0}$

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

1.0001 \times 10^{9}

Q. Choose the correct answer if

6 \times 10 + 9

is in general form.

Find its usual form.

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(9×10−2)+(9×103) in usual form is given as

The correct option is A 0.00009 The usual forms of the expressions 9×10−2 and 9×103 are given as 0.09 and 9000. Thus, 9000 + 0.09 = 9000.09.

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

The correct option is A
0.00009

The usual forms of the expressions $9 \times 10^{- 2}$ and $9 \times 10^{3}$ are given as 0.09 and 9000.
Thus, 9000 + 0.09 = 9000.09.