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ivanzaharov [21]
3 years ago
7

Justify each step in solving the equation 7x = 2(x - 5) by writing a reason for each statement. Drag the answers into the boxes

to correctly complete the proof. Statement Reason 1. 7x = 2(x - 5) 2. 7x = 2x - 10 3. 5x = -10 4. x = -2 Division Property of EqualityGivenSubtraction Property of EqualityDistributive Property
Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Let's solve this equation and put the words with it along the way.

1) 7x = 2(x - 5) [given: this is, well, the problem]

2) 7x = 2x - 10 [Distributive Property: 2 was distributed throughout (x-5)]

3) 5x = -10 [Subtraction Property of Equality: We subtracted 2x on both sides]

4) x = -2 [Division Property of Equality: We divided both sides by 5]


Hope this helps!

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\displaystyle\iint_\sigma\mathbf F\cdot\mathrm dS
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Since you want to find flux in the outward direction, you need to make sure that the normal vector points that way. You have

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The cross product is

\mathbf r_u\times\mathbf r_v=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\0&0&1\\-2\sin v&\cos v&0\end{vmatrix}=-\cos v\,\mathbf i-2\sin v\,\mathbf j

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Answer:


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