Question

9+10

On act no trick questiom

Answer 1

Concept-

Standard form is used to express number which are very large or small . Use of standard form make number easier to read and to do further calculation.

Syntax-

`\sf{\red{Number \: between \: 1 \: and \: 10} × \green{10^n}}`

where n is an integer and is equal to number of digits after leftmost number.

Solution-

`\underline{ \underline{\green\maltese { \bf \red{Given\;Number:-}}}}`

`\bull \: \: \: \: \: \: \: \sf \: 40500000000`

Steps-

Insert decimal point after leftmost digit as-

`\begin{gathered}\\\quad\longrightarrow\quad\sf 4.05 \\\end{gathered}`

Now count the Number after leftmost digit. There are 13 digits after leftmost digit -

`\therefore \boxed{ \sf{n= 13}}`

Putting in Syntax,the standard form will be -

`\therefore \boxed{ \sf{4.05 × 10^(13)}}`

Answer 2

19

Explanation:

very understanding explanation:

10 + 9 = 19