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3 years ago

5

In the circus, a tiger has been trained to jump through a ring of fire that has a diameter of 6 feet. What is the ring's circumf

erence?

1 answer:

Aleks [24]3 years ago

7 0

Answer:

Radius is going to be 3 since half of the diameter is the radius.

Formula of a circumference you must remember:

2πr

(2 x pie (3.14 or 22/7) x your given radius or have of the diameter.

2 x 3.14 x 3 = 18.84

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ludmilkaskok [199]

Answer:

true

Step-by-step explanation:

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3 years ago

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3 years ago

Find the cost of 750g at 48p per kg

Evgesh-ka [11]

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3 years ago

How are ΔABC and ΔADE related?

luda_lava [24]

Answer:

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Step-by-step explanation:

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3 years ago

A sample data set has a mean of 122.3 and a standard deviation of 18.5. Convert a score of 168.4 to a z score and determine if t

shtirl [24]

Answer:

$Z=2.49$ and this Z-score is “unusual.”

Step-by-step explanation:

To calculate the Z score use the following formula

$Z=\frac{x-\mu}{\sigma}$

Where

μ is the average

$\sigma$ is the standard deviation

x is the data to which we will calculate the z-score

In this case

$\mu = 122.3\\\\\sigma= 18.5\\\\x =168.4$

So

$Z=\frac{168.4-122.3}{18.5}$

$Z=2.49$

A z-score is unusual if $Z> 2$ or $Z < -2$

Finally

$Z=2.49$ and this Z-score is “unusual.”

5 0

3 years ago