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In-s [12.5K]
3 years ago
10

Donald weighed 154 pounds. His body fat percentage was 24%. How much of his weight was body fat?

Mathematics
1 answer:
Eduardwww [97]3 years ago
8 0
36.96 with the formula 0.24 * 154 = 36.96
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(a) A lamp has two bulbs, each of a type with average lifetime 1400 hours. Assuming that we can model the probability of failure
Temka [501]

Answer:

For first lamp ; The resultant probability is 0.703

For both lamps; The resultant probability is 0.3614

Step-by-step explanation:

Let X be the lifetime hours of two bulbs

X∼exp(1/1400)

f(x)=1/1400e−1/1400x

P(X<x)=1−e−1/1400x

X∼exp⁡(1/1400)

f(x)=1/1400 e−1/1400x

P(X<x)=1−e−1/1400x

The probability that both of the lamp bulbs fail within 1700 hours is calculated below,

P(X≤1700)=1−e−1/1400×1700

=1−e−1.21=0.703

The resultant probability is 0.703

Let Y be a lifetime of another lamp two bulbs

Then the Z = X + Y will follow gamma distribution that is,

X+Y=Z∼gamma(2,1/1400)

2λZ∼

X+Y=Z∼gamma(2,1/1400)

2λZ∼χ2α2

The probability that both of the lamp bulbs fail within a total of 1700 hours is calculated below,

P(Z≤1700)=P(1/700Z≤1.67)=

P(χ24≤1.67)=0.3614

The resultant probability is 0.3614

8 0
3 years ago
If you ride your bike at an average speed of 15 mph, how long will it take you to ride to your grandparents’ home? Express your
saveliy_v [14]

Answer:

It will take you 0.24 hour to ride to your grandparents’ home

It will take you 14 minutes to ride to your grandparents’ home

Step-by-step explanation:

- Your average speed is 15 miles per hour

- The distance to grandmother home is 3.67 miles

- You need to know how long it will take you to do that

∵ Distance = speed × time

∵ Distance = 3.67 miles

∵ Speed = 15 miles per hour

- Substitute these values in the rule above

∴ 3.67 = 15 × time

- Divide both sides by 15 to find the time

∴ Time = 0.24 hour

* It will take you 0.24 hour to ride to your grandparents’ home

- You need to convert the time from hour to minutes

∵ 1 hour = 60 minutes

∵ Time = 0.24 hour

∴ Time = 0.24 × 60 = 14.4

∴ Time ≅ 14 minutes

* It will take you 14 minutes to ride to your grandparents’ home

5 0
3 years ago
If a • b &gt; 0 and a &lt; 0, what must be true about b?
Musya8 [376]

Answer:

It is a negitive number

Step-by-step explanation:

8 0
3 years ago
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