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after the decimal point. pl 000. EXERCISE 3A 1. Express the following as decimals. (i) 3 x 10+ 4x1+7x 7 (iii) 10 9 (vii) 4 to s 1 (ii) 2 10 21 1 (iv) (v) 10 1 26 (viii) (ix) 3 25 Wait the following decimals​

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anita19841984mondal

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It seems like you're asking for help with converting expressions into decimal form. Let's address each part:

(i) \( 3 \times 10 + 4 \times 1 + 7 \times 0.7 \)

To calculate:

\[ 3 \times 10 = 30 \]

\[ 4 \times 1 = 4 \]

\[ 7 \times 0.7 = 4.9 \]

Now, add these together:

\[ 30 + 4 + 4.9 = 38.9 \]

So, the decimal form is \( 38.9 \).

(ii) \( 2.10 + 21.1 \)

Simply add these two numbers:

\[ 2.10 + 21.1 = 23.2 \]

So, the decimal form is \( 23.2 \).

(iii) \( 10^9 \)

This represents \( 10 \) raised to the power of \( 9 \):

\[ 10^9 = 1000000000 \]

So, the decimal form is \( 1000000000 \).

(iv) \( 10.1 \times 26 \)

Multiply these two numbers:

\[ 10.1 \times 26 = 262.6 \]

So, the decimal form is \( 262.6 \).

(v) \( 3 \div 25 \)

Perform the division:

\[ \frac{3}{25} = 0.12 \]

So, the decimal form is \( 0.12 \).

(vi) \( 4 \div 5 \)

Perform the division:

\[ \frac{4}{5} = 0.8 \]

So, the decimal form is \( 0.8 \).

(vii) \( 4 \div 1 \)

Perform the division:

\[ \frac{4}{1} = 4 \]

So, the decimal form is \( 4 \).

(viii) \( 3 \div 25 \)

We already calculated this in part (v), which is \( 0.12 \).

(ix) \( 3 \times 0.25 \)

Multiply these two numbers:

\[ 3 \times 0.25 = 0.75 \]

So, the decimal form is \( 0.75 \).

If there's anything else you need help with or if I misunderstood your question, feel free to ask!

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