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gulaghasi [49]
3 years ago
11

It describes itself <3

Mathematics
1 answer:
irina [24]3 years ago
3 0

Answer:

432 ft²

Step-by-step explanation:

The formula of finding the area of a trapezoid: (base 1 + base 2/ 2) x h

(base 1 + base 2/ 2) x h

= (20 + 28/2) x 18

= 24 x 18

= 432 ft²

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worty [1.4K]

Answer:

0.950796

Step-by-step explanation:

Given that a shuttle launch depends on three key devices that may fail independently of each other with probabilities 0.01, 0.02, and 0.02, respectively.

Required probability =  the probability for the shuttle to be launched on time

= Probability that all three do not fail

Since each key device is independent of the other

we have

prob that all three do not fail = (1-0.01)(1-0.02)(1-0.02)\\=0.99*0.98*0.98\\=0.950796

6 0
2 years ago
The speeds of cars on a given i street we are normally distributed with a mean of 72 miles per hour and a standard deviation of
Ostrovityanka [42]

Answer: 72.78% of the drivers are traveling between 70 and 80 miles per hour based on this distribution.

Step-by-step explanation:

Let X be a random variable that represents the speed of the drivers.

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The probability that the drivers are traveling between 70 and 80 miles per hour based on this distribution:

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Hence, 72.78% of the drivers are traveling between 70 and 80 miles per hour based on this distribution.

3 0
3 years ago
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Feliz [49]

Answer:

Step-by-step explanation:

8 0
2 years ago
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To do this we need to find the factors of 60 these are:
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3 years ago
the graph to the right represents mario’s mile time in minutes, y, based on the number of hours he spends training in hours , x
sveta [45]

Answer: it is 13+13=26

Step-by-step explanation:

I don’t care.

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2 years ago
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