Answer:
x = ±2
Step-by-step explanation:
3x ^2 -4 = 8
Add 4 to each side
3x ^2 -4+4 = 8+4
3x^2 =12
Divide each side by 3
3x^2 =12
3x^2/3 = 12/3
x^2 = 4
Take the square root of each side
sqrt(x^2) = ±sqrt(4)
x = ±2
Answer:
1
Step-by-step explanation:
If you add two negatives, the answer has to be positive. -6+-5=11 11/11=1
Hope I helped :)
20-1=19 hop this helps :)
Any vector that points in the same or opposite direction would be parallel. So you can just scale (-2, 3) by any real number <em>t</em> to get the vector (-2<em>t</em>, 3<em>t</em> ).
For example, if <em>t</em> = -1, you get the vector (2, -3); if <em>t</em> = 2, you get (-4, 6).
The weighted average unit cost after the October 22 purchase is $13.70.
<h3>What is the weighted average unit cost?
</h3>
The weighted average unit cost determines the weighted average cost of all the purchased inventory.
[(300 x 12) + (390 x 15) ] / (300 + 390)
(3600 + 5850) / 690 = $13.70
To learn more about the weighted average method, please check: brainly.com/question/28018617
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