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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Recombination occurs when two molecus of dna exchange pieces of their genetic material with each other .
Step by step
False, other way around. when oxygen is not present.
Typically, higher order streams contain MORE water than lower order streams.
Stream ordering is a mean of classifying natural channels in a water shed based on their sizes. The first order stream is the smallest stream and the second order stream is bigger than the first. Thus, the amount of water in the first order stream will be less that that of second order.<span />
Hydrophobic is water fearing so this will be the inside or between.
Hydrophilic is water loving so this will be in direct contact with the water so it should go at two places.
The plasma membrane is AMPHIPATHIC (important word) meaning it was two sides a water loving and water fearing side. The circle is polar meaning is wants to make contact with water and the middle is non polar meaning it doesn’t want to be near water
