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xenn [34]
3 years ago
6

Can someone help me? I will mark brainliest!

Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0

A.

If you work the exponents using laws of indices, they give the same result.

4.2 × 10⁹/ 1.4 x 10⁴ 4.2 × 10²/ 1.4 × 10^(-3)

using laws of indices...

since they are of the same base subtract the powers..

= 10^(9-4) = 10^(2-(-3))

= 10⁵ = 10^ (2+3) = 10⁵

B.

3.0 × 10⁵

C.

30,000.

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Given that P = (-5, 5) and Q = (-13, 10), find the component form and magnitude of 2 vector PQ.
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Define unit vectors along the x-axis and the y-axis as \hat{i} , \, \hat{j} respectively.

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Answer:
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Answer:

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