**Question:**Write in scientific notation and compute, keeping the answer in scientific notation. Help me solve it. Answer: 1.8 x 10^4

**Answers:**

Put all your decimals numbers together:

4.2/2.1 (3)(3) = 2x3x3 = 18

Now for your powers of 10 apply the rules of exponents:

(x^a)(x^b) = x^(a+b) {add exponents when multiplying}

(x^a)/(x^b) = x^(a-b) { subtract for division}

So its 10^(3--2+-2+0) = 10^3

Now we have 18x10^3, which equals 1.8 x 10^4

ta da!

solve it step by step

note 10 ^ 0 = 1

10 ^ -2s cancel out

4200x 3x 3 /2.1 = 18000

Some say 4.2 others say 18 000

This article contents is post by this website user, EduQnA.com doesn't promise its accuracy.

**More Questions & Answers...**