Question

The product of 1.7 x 10^4 and 12.5 x 10^6 is expressed in the standard form as k x 10^n. The value of (2k + n) is?​

Answer 1

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⇨ 1.7 × 10⁴ × 12.5 × 10^6

⇨21.25 × 10^10

⇨2.125 × 10^11

As it's in Standard Form,

★2.125 × 10^11 = k × 10ⁿ

Comparing both sides we get,

★ k = 2.125 & n = 11

So the value of 2k + n = 2 × 2.125 + 11

= 4.25 + 11

= 15.25

Hence, the value of 2k + n = 15.25

Answer 2

QuestioN :

The product of 1.7 x 10^4 and 12.5 x 10^6 is expressed in the standard form as k x 10^n. The value of (2k + n) is?​

GiveN :

The product of 1.7 x 10⁴ and 12.5 × 10⁶ is expressed in the standard form as k × 10ⁿ.

To FiNd :

The value of (2k + n)

ANswer :

2k + n = 15.25

SolutioN :

To solve this, let's find out the product of the given numbers and express them in standard form.

1.7 × 10⁴ × 12.5 × 10⁶

=21.25 × 10¹⁰

= 2.125 × 10¹¹

As it is in standard form,

>> 2.125 × 10¹¹ = k × 10ⁿ

Comparing both sides, we get,

>> k = 2.125 and n = 11

So, the value of 2k + n will be,

= 2 × 2.125 + 11

= 4.25 + 11

= 15.25

∴Hence, the value of 2k + n is 15.25