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lisabon 2012 [21]
3 years ago
10

Write a key word that means equal​

Mathematics
1 answer:
FromTheMoon [43]3 years ago
8 0

Answer: indistinct, alike equivelent

Step-by-step explanation:

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Which equation represents a proportional relationship?
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The equation that represents a proportional relationship is:

y = 32x

Because:

y/x = 32

So that implies that y is directly proportional to x.

Note that other equations represent a proportional relationship in some form, only that the relationship y = 32x is the only direct proportional relationship.

5 0
4 years ago
The number of times per minute that a hummingbird's wings flap is normally distributed with a mean of 145 and a standard deviati
klemol [59]

Answer:

a) 0.0013

b) 0.9544

c) 84.13 percentile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 145

Standard Deviation, σ = 2

We are given that the distribution of wings flap is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P( flaps its wings more than 151 times a minute)

P( x > 151) = P( z > \displaystyle\frac{151 - 145}{2}) = P(z > 3)

= 1 - P(z \leq 3)

Calculation the value from standard normal z table, we have,  

P(x > 151) = 1 - 0.9987 = 0.0013

b) P( flap their wings between 141 and 149 times per minute)

P(141 \leq x \leq 149)\\\\ = P(\displaystyle\frac{141 - 145}{2} \leq z \leq \displaystyle\frac{149-145}{2})\\\\ = P(-2 \leq z \leq 2)\\\\= P(z \leq 2) - P(z < -2)\\= 0.9772 - 0.0228 = 0.9544

c) Percentile of  hummingbird that flaps its wings 147 times a minute

P( x < 147) = P( z < \displaystyle\frac{147 - 145}{2}) = P(z < 1)

Calculation the value from standard normal z table, we have,  

P(x < 147) = 0.8413

Thus, A hummingbird that flaps its wings 147 times a minute is in the 84.13 percentile.

3 0
3 years ago
How many cm are in 1 meter?Whate about 2 meter?
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There are 100 cm in one meter. Therefore, there are 200 cm in 2 meters.<span />
4 0
3 years ago
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A train travels with a constant speed of 88 km/h. How far can it travel in 3 hours??? PLEASE HELPP
blagie [28]
Since it is traveling at a constant rate of 88 km per hour, if we were to find out what it could travel in 3 hours we would multiply 88 by 3. If done correctly you should get 264. Hopefully this helps you!
6 0
3 years ago
Which of the following represents e -4 rounded to the nearest thousandth?
fomenos

Answer:

0.018

Step-by-step explanation:

e is about 2.718. e to the 4th is 54.598. when it's taken to the -1, it equals 0.018.

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3 years ago
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