All categories

3 years ago

Each food level has about ________ % less energy because of the energy lost in other levels.

Mathematics

2 answers:

Leya [2.2K]3 years ago

8 0

Answer:

Within all biological communities, energy at each trophic level is lost in the form of heat (as much as 80 to 90 percent), as organisms expend energy for metabolic processes such as staying warm and digesting food (see biosphere: The organism and the environment: Resources of the biosphere: The flow of energy).

Dafna1 [17]3 years ago

5 0

Answer: About 90% is lost through heat.

You might be interested in

Shanice paid $3.82 for a sandwich. She now has $7.44. How much money did she have before buying he sandwich?

astraxan [27]

Just add 7.44 and 3.82

7.44 + 3.82 = 11.26

So, she had $11.26 before buying a sandwich

8 0

3 years ago

In point estimation a. data from the population is used to estimate the population parameter b. data from the sample is used to

icang [17]

Answer:

Option B) data from the sample is used to estimate the population parameter

Step-by-step explanation:

Point estimation:

Its is the process of getting a point estimate from a sample that describes a population parameter in the best way.
We calculate the unknown population parameter with the help of a sample drawn from the population.
It is similar to interval estimation.
In interval estimation we obtain an interval in which the population parameter may lie but in point estimation we obtain a single value which is the best approximation of population parameter.

Thus, the correct answer is

Option B) data from the sample is used to estimate the population parameter

4 0

3 years ago

Two cylindrical cans are mathematically similar.

Stolb23 [73]

Answer:

<u>The diameter of the smaller can is ≅ 9.14 cm</u>

Correct statement and question:

Two cylindrical cans are mathematically similar.

The larger can has a capacity of 1 liter and a diameter of 12 cm and the smaller can has a capacity of 440 ml.

Calculate the diameter, d, of the 440 ml can.

Source:

Previous question that can be found at brainly

Step-by-step explanation:

Let's recall that:

A. The formula of the volume of a cylinder is π*r²*h, where:

r is the radius of the cylinder (half of the length of the diameter) and h, represents the height of the cylinder.

B. 1 liter = 1,000 milliliters = 1,000 cubic centimeters

Therefore, we can find the height of the larger can, this way:

V = π*r²*h

Replacing with the value we know:

d = 12 ⇒ r = 6

1,000 = 3.1416 * 6² * h

1,000 = 113.0976h

h = 1,000/113.0976

h = 8.84 cm (rounding to the next hundredth)

Now we can find the ratio of the radius to the height of the larger can to find the measures of the smaller can, this way because the cylinders are mathematically similar:

Ratio = Radius/Height

Ratio = 6/8.84

Ratio = 0.6787

It means the radius of the smaller can is 0.6787 multiplied by the value of the height of the smaller can. Let x represent the height h of the smaller can, we can write this equation to solve for x:

V = π*r²*h

Replacing with the values we know:

height = x

radius = 0.6787x

440 = π * (0.6787x)² * x

440 = 3.1416 * 0.4606x² * x

440 = 1.4471x³

x³ = 440/1.4471

x³ = 304.06

∛x = ∛304.06

x = 6.73 ⇒ height of the smaller can = 6.73 cm and radius of the smaller can = 6.73 * 0.6787 = 4.57

If radius = 4.57 cm ⇒ diameter = 2 * 4.57 = 9.14 cm

<u>The diameter of the smaller can is ≅ 9.14 cm</u>

4 0

4 years ago

13 points if you can answer the problem AND teach me how to answer the problem

Harman [31]

<h3>Answer:</h3>

Y = 3X + 12

<h3>Explanation:</h3>

You are given several points on the line, so you can use a couple of them to find the slope, then write the equation in point-slope form and rearrange it to the desired form.

... slope = (change in Y)/(change in X)

Using the first two points, this is ...

... slope = (69 -51)/(19 -13) = 18/6 = 3

<em>Point-Slope Form</em>

The point-slope form of the equation of a line is usually written ...

... y -y1 = m(x -x1) . . . . . . where m = slope, (x1, y1) = point

This can be put into a y= form by adding y1:

... y = m(x -x1) +y1

<em>Your Equation</em>

Filling in m=3, (x1, y1) = (13, 51), the equation becomes

... y = 3(x -13) +51

... y = 3x -39 +51 . . . . . eliminate parentheses

... y = 3x +12 . . . . . . . . . simplify to slope-intercept form

_____

<em>Alternate Solution</em>

Having found the slope to be 3, you can write the slope-intercept form and fill in what you know.

... y = mx + b . . . . . slope-intercept form

... 51 = 3·13 +b . . . . slope-intercept form with slope and first point filled in

... 51 -39 = b = 12 . . . . equation solved for <em>b</em> by subtracting 39

Now you know that the equation is

... y = 3x +12

3 0

3 years ago

What is 87.9 to the square root of 6

Reika [66]

Answer:

57780.4353288

Step-by-step explanation:

The square root to the square root of 6 is 57780.4353288

Hope it helped! :)

May i have brainliest!

3 0

3 years ago