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3 years ago

How does soil begin to form?

Mathematics

1 answer:

Nonamiya [84]3 years ago

3 0

Answer: Rock particles clump together in aggregate

Step-by-step explanation:

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

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Answer the question for brainliest. <br>(Simplify Please)

mr_godi [17]

$1 \frac{2}{5} m - \frac{3}{5} ( \frac{2}{3} m + 1)$

$\frac{7}{5} m - \frac{6}{15} m - \frac{3}{5}$

$\frac{21}{15} m - \frac{6}{15} m - \frac{3}{5}$

$( \frac{(21 - 6)m}{15} ) - \frac{3}{5}$

$\frac{15}{15} m - \frac{3}{5}$

$1m - \frac{3}{5}$

$m - \frac{3}{5}$

5 0

3 years ago

- x+5y = 19<br> X+ 2 y = 16<br> Solving systems using elimination

Vesna [10]

Hope this helps with the answer ;)

7 0

3 years ago

Read 2 more answers

All three sides of a triangle are initially 4 m in length. One of the triangle's sides is oriented horizontally. The triangle is

Arlecino [84]

Answer:

the new height of the triangle = 2.449

Step-by-step explanation:

Given that:

the sides of the triangle are 4m in length i.e they are equal. It shows that the triangle is known to be an equilateral triangle.

Let say the triangle is a triangle IJK

Let the length of the side to be i = 4

Definitely

IJ = JK = IK = i = 4

If a midline is drawn and cuts the equilateral triangle in two equal halves of a right-angle triangle. Then, suppose the midline is L

Then ;

$JL = \dfrac{1}{2} JK$

$JL = \dfrac{1}{2} i$

Let consider triangle IJL

(IL)² = (IJ)² - (JL)²

$(IL)^2 = i^2 - \dfrac{i^2}{4}$

$(IL)^2 = \dfrac{3i^2}{4}$

$(IL) =\sqrt{ \dfrac{3i^2}{4}}$

$IL =\sqrt{3} \dfrac{i}{2}$

Area of triangle IJK can be expressed as:

$Area = \dfrac{1}{2}\times Base \times Height$

$Area = \dfrac{1}{2}\times i \times \sqrt{3}\dfrac{i}{2}$

$Area = \sqrt{3}\dfrac{i^2}{4}$

where, i = 4

Then:

$Area = \sqrt{3}\dfrac{4^2}{4}$

$Area = \sqrt{3} \dfrac{16}{4}$

$Area =4 \sqrt{3}$

when the area is exactly half of the original triangle's area, the new height is :

$A = \dfrac{1}{2} \times Area$

$\sqrt{3} \dfrac{i^2}{4} = \dfrac{1}{2} \times 4\sqrt{3}$

$\dfrac{i^2}{4} = \dfrac{1}{2} \times 4$

$\dfrac{i^2}{4} =2$

$i^2 = 8$

$i= \sqrt{8}$

$i= \sqrt{4 \times 2}$

$i= 2 \sqrt{2}$

Finally, the new height of the new triangle is:

$IL =\sqrt{3} \dfrac{i}{2}$

$IL =\sqrt{3} \dfrac{2 \sqrt{2}}{2}$

$IL =\sqrt{3 \times 2}$

$IL =\sqrt{6}$

IL = 2.449 m

6 0

4 years ago

How many times does a rabbit's heart beats in 1 hour?

Mkey [24]

120-150 i think im like 85 percent sure

5 0

3 years ago

Read 2 more answers

Malaya wrote a survey question in the newspaper about changing the school colors. Ninety percent of those who responded in an e-

a_sh-v [17]

Not all of the student body would have responded therefore her conclusion was incorrect, could be changed to be right by saying 90% of people who responded to a survey said the school colours should be changed.

6 0

3 years ago