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xeze [42]
2 years ago
9

The ratio of country albums to jazz albums in a music collection is 2:3. If the music collection has 45 albums,

Mathematics
1 answer:
DedPeter [7]2 years ago
4 0

Answer:

18 albums

Step-by-step explanation:

2x+3x=45

5x=45

x=9

country=2(9) = 18 album

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One brand of coffee is packaged in cylinders where the height is equal to the radius, r. The volume of the package, in cubic cen
aliya0001 [1]

Answer:

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Step-by-step explanation:

This problem is a composition of function defined by C(V(r)), now we have the functions V(r)= \pi r^{3} and C(V)=3.2V, where the first depends on the radius, and the second dependes on the volume, that means, to find the number of ounce of coffe, we need to determine the volume of the cylinder, that's why we have to replace the volume function inside the ounces function,

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8 0
2 years ago
I am a number between 20 and 30. When you divide me into 6 equal groups, there is an even number in each group and 2 are left ov
elena55 [62]
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3 0
2 years ago
The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 135 adult​ males, the pulse rat
igomit [66]

Answer:

Step-by-step explanation:

Hello!

The population variance is symbolized σ² and the standard deviation σ (remember that for estimations and statistics test, the parameter of study is always the variance)

The sentence "The standard deviation of pulse rates of adult males is less than 12 bpm." is symbolized σ <12

The sample variance is symbolized S² and the standard deviation is S.

The sample standard deviation is S= 11.5.

I hope it helps!

7 0
3 years ago
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Answer:

B

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Step-by-step explanation:

B

all real numbers except 4

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3 years ago
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