Alex wants to make birdhouses for the wild birds that lives around the area. She's trying to decide on the measurements for the
roof of a birdhouse. The diagram shows that the roof is formed by two identical right triangles. Which set of measurements can be used to make one of the right triangles?
A. 15 cm, 20 cm, 35 cm
B. 15 cm, 36 cm, 39 cm
C. 15 cm, 20 cm, 26 cm
D. 12 cm, 16 cm, 18 cm
A. 15 cm, 20 cm, 35 cm
B. 15 cm, 36 cm, 39 cm
C. 15 cm, 20 cm, 26 cm
D. 12 cm, 16 cm, 18 cm
1 answer:
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Answer:
P(Y = 0) = 0.09
P(Y = 1) = 0.4
P(Y = 2) = 0.32
P(Y = 3) = 0.19
Step-by-step explanation:
Let the events be:
Wednesday
Thursday
Friday
Saturday
Their corresponding probabilities are
Since = number of days beyond Wednesday that it takes for both magazines to arrive(so possible
values are 0, 1, 2 or 3)
The possible number of outcomes are therefore
The values associated for each of the outcomes are as follows:
The probability mass function of is,
