Question

Find (3 × 104) − (5 × 102). A) 2.905 × 102 B) 2.905 × 104 C) 2.95 × 102 D) 2.95 × 104

Answer 1

Step-by-step explanation:

3x104=312

5x102=510

312-510=-198

So.There is no answer with minus sign.

Answer 2

There is no option matched.

Step-by-step explanation:

We have,

(3 × 104) − (5 × 102)

= 312 - 510

= - 198

Check options:

A) 2.905 × 102 = 296.31

B) 2.905 × 104 = 302.12

C) 2.95 × 102 = 300.9

D) 2.95 × 104 = 306.8

Hence, there is no option matched.