Question

Please solve this question. There are 20 points for this answer​

Answer 1

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• Perform the following calculation and round of the numbers to two digit.

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For Question 1.

$\frac{1}{3.4 \times {10}^{24} }$

$= 0.29 \times {10}^{ - 24}$

After rounding, we get,

$= 0.3 \times {10}^{ - 24}$

For Question 2.

$\frac{33}{9.0 \times {10}^{ - 4} }$

$= 3.66 \times {10}^{4}$

After rounding, we get,

$= 3.7 \times {10}^{4}$

For Question 3.

$\frac{1.4 \times {10}^{9} }{(2.77 \times {10}^{3}) \times (3.76 \times {10}^{5} )}$

$= 0.14 \times {10}^{9 - 3 - 5}$

$= 0.14 \times {10}$

$= 1.4$

Answer 2

Answer:

=0.3×10

−24

For Question 2.

\frac{33}{9.0 \times {10}^{ - 4} }

9.0×10

−4

33

= 3.66 \times {10}^{4}=3.66×10

4

After rounding, we get,

= 3.7 \times {10}^{4}=3.7×10

4

For Question 3.

\frac{1.4 \times {10}^{9} }{(2.77 \times {10}^{3}) \times (3.76 \times {10}^{5} )}

(2.77×10

3

)×(3.76×10

5

)

1.4×10

9

= 0.14 \times {10}^{9 - 3 - 5}=0.14×10

9−3−5

= 0.14 \times {10}=0.14×10

= 1.4=1.4