Given:
Trapezoid with bases 10 and 20, and height of the trapezoid is 6.
To find:
The area of the trapezoid.
Solution:
We know that the area of a trapezoid is:
Where, h is the height of the trapezoid and 
are bases of the trapezoid.
Putting 
in the above formula, we get
The area of the trapezoid is 90 sq units. Therefore, the correct option is A.
Given the data from the question, reaction 2 is 2.83 times faster compared to reaction 1
<h3>Data obtained from the question</h3>
- Molarity of reaction 1 (R₁) = 0.180 mol/L
- Molarity of reaction 2 (R₂) = 0.510 mol/L
- Comparison =?
<h3>How to determine the comparison of reaction 2 to reaction 1</h3>
We can determine how many times faster is reaction 2 to reaction by doing the following:
R₂ / R₁ = 0.510 / 0.180
R₂ / R₁ = 2.83
Cross multiply
R₂ = 2.83 × R₁
From the above illustration, we can see that reaction 2 is 2.83 times faster than reaction 1
Learn more about Graham's law of diffusion:
brainly.com/question/14004529
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Since you said men to women, there are 5 men in the dance recital and 6 women in the dance recital.
1. Look how the problem states. Ex: Ratio of men to women.
2. Look at the ratio. 5:48.
3. We know that there are 48 female performers at the dance recital.
So, there are 5 men at the dance recital.
