Question

50 POINTS AND BRAINLIEST TO FIRST CORRECT ANSWER

Answer 1

Answer:

6) Option 4

7) Option 4

8) Option 1

Step-by-step explanation:

1.31×(10^-5) = 1.131/10⁵

= 1.132/100000

= 0.00001132 (option 4)

7) 3.76×10⁴ + 5.5×10²

10²(3.76×10² + 5.5)

10²(376 + 5.5)

10²(381.5)

10²(3.815×10²)

3.815×10⁴ (option 4)

8) (4×10³)(5×10⁷)

4×10³×5×10⁷

4×5×10³×10⁷

(4×5)(10^(3+7)

(4.5)×(10^(3+7)) (option 1)

That . represents multiplication

Further simplified below:

20×10¹⁰

2.0×10¹¹

Answer 2

Answer:

Step-by-step explanation: