3 years ago

(05.02)

Mathematics

1 answer:

torisob [31]3 years ago

6 0

Answer:

4 jibovohvohbohvphhihbjh

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How many 1 inch cubes do you need to fill a cube with an edge length of 7/12 foot

grigory [225]

Answer:

[you need 343 1 inch cubes]

Step-by-step explanation:

A foot has 12 inches. So if the edge length is 7/12 of a foot, that means that the edge length is 7 inches.

——————

[volume of a cube if the edge length is L, is L x L x L or L cubed]

A one inch cube has an edge length of 1. That means the volume of this cube is 1 x 1 x 1 = 1 inch cubed

——————

This big cube, has an edge length of 7 inches. So the volume is 7 x 7 x 7 = 343 inches cubed.

To find how many 1 inch cubes do you need to fill a 7 inch cube, you divide 343 by 1:

343/1=343 so you need 343 1 inch cubes.

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3 years ago

How many decibels is this? show work

slavikrds [6]

Answer:

115 dB

Explanation:

1. Given equation:

$\beta =10log(\frac{I}{I_0})\\\\ I_0=10^{-12}W/m^2$

2. Given intensity:

$I=0.315W/m^2$

3. Decibels

$\beta =10log(0.315/10^{-12})\\ \\ \beta =10log(315,000,000,000)\\ \\ \beta =10(11.498)=114.98\approx 115$

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3 years ago

From the top of a tower 120m high the angle of depression of a stone on the ground is found to be 30°. How far is the stone from

gogolik [260]

Step-by-step explanation:

so from this, I think the difference is 207.84 m

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2 years ago

Mrs.Brown gives two tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What perc

viktelen [127]

Answer:

25%

Step-by-step explanation:

100%-30%=70%

70%-45%=25%

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3 years ago

You are dealt one card from a 52-card deck. Find the probability that you are dealt a two or a black card?

Stells [14]

CMV mag Vichy de vsnsn73748594

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3 years ago

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