The value of the unknown number is 10.5.
Let the unknown number = x
When 20 is subtracted from the number and the result is squared which is equal to the square of the unknown number minus 20:
(x - 20)² = x² - 20
<em>expand the equation;</em>
x² - 40x + 400 = x² - 20
<em>collect similar terms together;</em>
x² - x² - 40x = -20 - 400
-40x = -420
Thus, the value of the unknown number is 10.5.
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The receptor molecule is the ones which allow different interaction to occur between the matrix and the cell.
<u>Explanation:</u>
Receptor molecules are the protein molecules that have the ability to bind the signaling molecules at the surface of the cell in order to send signals to the matrix. Those signals on receipt<em> </em>act as the channel of communication.
Thereby, the interaction between the cell and matrix is established. Usually, this is one of the kinds of interaction. Paracrine interactions are interaction within adjacent cells whereas the endocrine interactions are interaction with distant cells.
Sulfur and phosphorus compounds enter bodies of water, such as ponds, lakes, and rivers <span>as run-off containing fertilizers and detergents. And based by this, this would then be runned by sedimentation as the deposition of how the water would work and how it would enter the bodies such as the ponds and lakes and other forms of water areas.</span>
Answer:fats and proteins water and carbohydrates nucleic acids and water oxygen gas and fats Fats and proteins both contain carbon atoms. s
Explanation:
