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dalvyx [7]
2 years ago
9

Find the area of the trapezoid

Mathematics
2 answers:
lidiya [134]2 years ago
4 0

area = ( top rule + bottom rule ) × height / 2

area = ( 2 + 3 ) × 4 / 2

area = 5 × 4 / 2

area = 20 / 2

area = 10

nikdorinn [45]2 years ago
3 0
The area is 10. You can just count the squares and the half squares
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Answer:

\mathbf{ \int_{0}^{10} \int_{y}^{y+45} f(x)g(y)dxdy }

Step-by-step explanation:

Ask yourself, when will Xavier and Yolanda meet??

Firstly, since it is given that Xavier doesn't wait at all, in order for them to meet, Yolanda must arrive before Xavier. This in mathematical terms can be expressed as

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Secondly, Yolanda will wait for only 45 minutes, So Xavier must arrive before that, i.e

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Combining both conditions, we obtain

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If f(x) and g(y) be the density functions for Xavier and Yolanda respectively, the probability of meeting is given by,

\int_{0}^{10} \int_{y}^{y+45} f(x)g(y)dxdy.

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