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musickatia [10]

3 years ago

10

A circle has a radius of 6 centimeters and a circumference of 12π centimeters. The radius of the circle is then multiplied by 5.

What is the circumference of the new circle in terms of π?

1 answer:

artcher [175]3 years ago

3 0

Answer:

The answer is 60

Step-by-step explanation:

Just trust me :)

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A plastic bin contains red, yellow, and green key chains. Out of 350 keys, 10% are yellow, of the remaining key chains, 60% are

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Answer: 105

Explanation:

60% + 10% = 70% = yellow and green

30% = red

350/10 = 35 x 3 = 105

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The Star television costs $750 more than the Jupiter television. The two models cost $2,600 all together. Sandra writes an equat

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How to find an equivalent fraction of 36/48 with numerator 9

Kobotan [32]

Answer:

9/12

Step-by-step explanation:

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3 years ago

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A rental moving truck can haul a maximum of 7,500 pounds. Dejuan has boxes that weigh 40 pounds and boxes that weigh 75 pounds.

alexdok [17]

The first graph is the correct answer.

4 0

3 years ago

Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL) in 100 randomly selected a

charle [14.2K]

Answer:

Step-by-step explanation:

a)

Confidence interval in less than symbol expressed as

$\bar{x} - E < \mu < \bar{x} + E
$

Where $\bar{x}$ is sample mean and $E$ is margin of error.

$13.03 < \mu 13.42
$

b)

The given t interval is $(13.032 , 13.418 )
$

That is $\bar{x} - E = 13.032$ and $\bar{x} + E = 13.418$

Solve these two equation by adding together.

$2 \bar{x} = 13.032 + 13.418
\\\\\bar{x} = 13.225$

Solve this value of \bar{x} in equation $\bar{x} - E = 13.032$ and solve for $E$

$13.225 - E = 13.032
\\\\E = 0.193
$

Best point estimate of $\mu = \bar{x} = 13.225
$

Best point estimate of margin of error = 0.193

c)

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

sample data appear to be form a population with normal distribution.

8 0

3 years ago