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saul85 [17]
3 years ago
5

Help please

Mathematics
1 answer:
algol [13]3 years ago
6 0

An Ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes.

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Plot the points on a graph.A(0,0);B(0,2);C(2,2);D(2,0). Join AB, BC,CD and AD. What is the figure formed? Find the area of the f
tia_tia [17]

\large \green{ \underline{ \blue{ \boxed{\bf{ \red{Given -}}}}}}

Four points which lie at (0,0) ; (0,2) ; (2,2) ; (2,0)

\large \green{ \underline{ \blue{ \boxed{\bf{ \red{To \: Find-}}}}}}

What is the figure formed?What is the area of the figure?

\large \green{ \underline{ \blue{ \boxed{\bf{ \red{Solution-}}}}}}

The given points lie on graph as per the order given in the attachment.

Which shape?

As the points lie 2 units apart from their adjacent sides. It can be a square or rhombus.

The opposite pairs of sides are also parallel to each other. The adjacent sides of the figure formed are also perpendicular to each other.

<u>Hence! the figure formed is a square.</u>

What is the area?

\large{\sf{ \longmapsto Area_{(square)} = s \times s}}

\large{\sf{ \longmapsto Area_{(square)} = {s}^{2} }}

\large{\sf{ \longmapsto Area_{(square)} = {(2)}^{2} }}

\large{\sf{ \longmapsto Area_{(square)} = 4 \: sq. \: units}}

4 0
2 years ago
10) The temperature recorded at 12 noon was 15°C above zero. If it decreases at the rateof 3°C per hour until midnight, at what
aalyn [17]

Answer:

at 8 pm the temperature will be -9 degrees. and at midnight the temperature will be negitive twenty one(-21) degrees

Step-by-step explanation:

the start time is 12 pm and finish is 12 am and every hour your going to subtract 3 from the given degree so 15-3= 12 , 12-3=9 ect.

6 0
3 years ago
Suppose that 20% of students at high school A and 18% of students at high school B participate on a school athletic team. Indepe
ludmilkaskok [199]

Answer:

0.02

Step-by-step explanation:

High schools A :

Percentage of participants in on the school athletic team = 20%

Pa = 20% = 0.2

High school B:

Percentage of participants in on the school athletic team = 18%

Pa = 18% = 0.18

The mean of sampling distributon is :

Pa - Pb

0.2 - 0.18

Hence, Mean of sampling distribution is 0.02

5 0
3 years ago
Point B splits a segment AC with ratio AB:BC=2:1. Point D splits a segment AB with the ratio AD:DB=3:2. What is the ratio for AD
Paraphin [41]

Answer:

The ratio for AD:DC is 2:3

Step-by-step explanation:

The given information are;

The ratio by which point B splits AC as AB:BC = 2:1

The ratio by which point D splits AB as AD:DB = 3:2

Therefore, we have;

The fraction of AC that is equal to AB is given as follows;

AB = 2/(2 + 1) × AC = 2/3 × AC

AB = 2/3 × AC

Similarly

BC = 1/3 × AC

Also the fraction of AB that is equal to AD is given as follows;

AD = 3/(3 + 2) × AB = 3/5 × AB

AD = 3/5 × AB

Therefore, the fraction of AC that is equal to AD is given as follows;

AD = 3/5 × AB = 3/5 × 2/3 × AC = 2/5 × AC

Therefore, DC = (1 - 2/5) × AC = 3/5 × AC

Which gives the ration of AD to DC or AD:DC as being;

AD:DC = 2/5 × AC : 3/5 × AC  = 2/5:3/5 = 2:3

The ratio for AD:DC = 2:3.

6 0
4 years ago
Which of the following correctly describes the end behavior of the polynomial
galben [10]

Answer:

A. Both ends go down.

General Formulas and Concepts:

<u>Algebra II</u>

  • End behavior - what the y-values are approaching as x approaches negative infinity or infinity

Step-by-step explanation:

If we graph the function, we can see that when x goes to -∞, y also goes to -∞.

We also see that when x goes to ∞, y <em>still</em> goes to -∞.

Therefore, both ends of the graph would head towards -∞, making A. the correct answer choice.

6 0
3 years ago
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