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Veseljchak [2.6K]
2 years ago
11

This is easy but please help a nika out !!

Mathematics
1 answer:
Feliz [49]2 years ago
8 0

Answer:

54 and 72

Step-by-step explanation:

3 plus 7

126 divided by 7

multiply 3 and 4 by 18

3 times 18 equals 54

4 times 18 equals 72

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Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x^2+1 inches, and
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I think its 102 inches
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What is the area of the figure
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A²+b²=c²
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4 0
3 years ago
The length of a violin string varies inversely with the frequency of its vibrations. A violin string 14 inches long vibrates at
lara31 [8.8K]

Answer: 525 cycles per second.

Step-by-step explanation:

The equation for inverse variation between x and y is given by :-

x_1y_1=x_2y_2       (1)

Given : The length of a violin string varies inversely with the frequency of its vibrations.

A violin string 14 inches long vibrates at a frequency of 450 cycles per second.

Let x =  length of a violin

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To find: The frequency of a 12 inch violin string.

Put x_1=14,\ x_2=12\\y_1=450,\ y_2=y in equation (1) , we get

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Divide both sides by 12 , we get

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Hence, the frequency of a 12 inch violin string = 525 cycles per second.

3 0
3 years ago
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