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3 years ago

If there are 20 Earthworms in a garden that covers 5 square meters, what is the population density of the earthworms?

Physics

2 answers:

lana66690 [7]3 years ago

7 0

4 earthworms per square meter

hodyreva [135]3 years ago

3 0

I think, I do think.. that it is D.

Wouldn't it be simple to divide 5 from 20, that would equal 4.

4 earthworms per square meter.

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North Dakota Electric Company estimates its demand trend line (in millions of kilowatt hours) to be: D = 75.0 + 0.45Q, whe

Alborosie

Answer:

The demand forecast for winter is 96.36 millions KWH

The demand forecast for spring is 145.08 millions KWH

The demand forecast for summer is 169.89 millions KWH

The demand forecast for fall is 73.08 millions KWH

Explanation:

Given that,

The demand trend line is

$D=(75.0+0.45Q)\times multiplicative\ seasonal\ factors$

We need to calculate the demand forecast for winter

Using given formula

$D=(75.0+0.45Q)\times multiplicative\ seasonal\ factors$

Put the value into the formula

$D=(75.0+0.45\times101)\times0.80$

$D=96.36\ millions\ KWH$

We need to calculate the demand forecast for spring

Using given formula

$D=(75.0+0.45Q)\times multiplicative\ seasonal\ factors$

Put the value into the formula

$D=(75.0+0.45\times102)\times1.20$

$D=145.08\ millions\ KWH$

We need to calculate the demand forecast for summer

Using given formula

$D=(75.0+0.45Q)\times multiplicative\ seasonal\ factors$

Put the value into the formula

$D=(75.0+0.45\times103)\times1.40$

$D=169.89\ millions KWH$

We need to calculate the demand forecast for fall

Using given formula

$D=(75.0+0.45Q)\times multiplicative\ seasonal\ factors$

Put the value into the formula

$D=(75.0+0.45\times104)\times0.60$

$D=73.08\ millions KWH$

Hence, The demand forecast for winter is 96.36 millions KWH

The demand forecast for spring is 145.08 millions KWH

The demand forecast for summer is 169.89 millions KWH

The demand forecast for fall is 73.08 millions KWH

3 0

2 years ago

About how long ago did our solar system form? 3.8 billion years ago 4.6 billion years ago 5 billion years ago 13.7 billion years

olga2289 [7]

4.6 billion years agony

7 0

3 years ago

Which of the following would cause the greatest decrease in gravitational force between the earth and the moon?

Marat540 [252]

Answer:

A decrease in the distance between the earth and the moon.

7 0

2 years ago

Read 2 more answers

Why does friction cause a spinning stop to eventually stop?

Genrish500 [490]

Mechanical Energy transforms into Thermal due to the moving parts rubbing on eachother creating heat and friction.

7 0

3 years ago

What happens in an electromagnet if the core is partially air and partially iron when it is energized?

Xelga [282]

IT WOULD act like an electromagnet even now
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3 years ago