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3 years ago

What is the geometric mean of 30 and 6

Mathematics

2 answers:

sladkih [1.3K]3 years ago

8 0

Square root (30 x 6)=
Square root 180=
Square root ( 13 x 13)+11=
13 square root of 11 = 13.41640786

Alik [6]3 years ago

6 0

Since we have 2 numbers, we'll be square rooting.

All we have to do to find the mean is multiply & square root the products.

30 × 6 = 180

$\sqrt{180} = 13.42$

You can use the same process and check my answer if you'd like; I rounded the square root, so you may get a different answer.

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3 years ago

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Which number produces a rational number when added to 0.5

Sladkaya [172]

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3 years ago

Nola was selling tickets at the high school dance. At the end of the evening she picked up the cash box and noticed a dollar lyi

Blizzard [7]

Answer:

The $1 belongs to the cash box

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine if the $1 belongs to the cash box or not

Represent singles with s and couples with c.

From the attachment, we have:

$s + c = 47$ --- total attendance

$5s + 4c =200$ --- ticket sold

Solve for s and c.

Make s the subject in (1)

$s = 47-c$

Substitute 47 - c for s in (2)

$5(47 - c) + 4c = 200$

Open bracket

$235 - 5c + 4c = 200$

$235 - c = 200$

$c = 235 - 200$

$c = 35$

This means that the total individual which makes up the couples are 35. This is not possible because couples are in 2's and the total should be an even number.

<em>So, we can conclude that the $1 belongs to the cash box</em>