Answer: 75
This is how I did it: We know that triangles add up to 180, so subtract the known angle from 180 and you'll get 150. Then divide 150 by 2 to find out the other two angles and you'll get 75.
180-30=150
150÷2=75
So the answer is 75
:)
Answer:
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Explanation:
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Nutrients primarily come from detritus sinking from more productive shallower water.
<h3>Define detritus.</h3>
In contrast to dissolved organic material, detritus is dead organic material that is in the form of particles. Detritus typically consists of faces and the carcasses or remains of dead organisms. Communities of microbes that colonize and breakdown (i.e., remineralizer) detritus are frequently found in it. It is known as "soil organic matter" and is present in terrestrial ecosystems as leaf litter and other organic matter that is combined with soil. Organic matter that is suspended in water and accumulates in depositions on a body of water's floor referred to as "marine snow" when the floor is a seabed is referred to as detritus in aquatic ecosystems.
to know more about detritus please check the link given below:
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Answer:
1. x = 7.25
2. x = 36
Explanation:
1. Base on intersecting secants theorem, therefore:
DE × DF = DG × DH
DE = 11
DF = 11 + 10 = 21
DG = 12
DH = 12 + x
Therefore,
11*21 = 12(12 + x)
231 = 144 + 12x
231 - 144 = 12x
87 = 12x
Divide both sides by 12
x = 7.25
2. Based on the secant-tangent rule, we have:
CD*CA = CB²
CD = 12
CA = 12 + x
CB = 24
Thus:
12(12 + x) = 24²
144 + 12x = 576
12x = 576 - 144
12x = 432
Divide both sides by 12
x = 432/12
x = 36
