Identify whether the variable in the information below is qualitative or quantitative. Government agencies carefully monitor water quality and its effect on wetlands (Reference: Environment Protection Agency Wetland Report EPA 832-R-93-005). Of particular concern is the concentration of nitrogen in water draining from fertilized lands. Too much nitrogen can kill fish and wildlife. Twenty-eight samples of water were taken at random from a lake. The nitrogen concentration (milligrams of nitrogen per liter of water) was determined for each sample.

Answers

Answer 1

Answer: quantitative

Step-by-step explanation:

Measured variables in statistics may be subdivided into quantitative or Qualitative variables depending on whether the variable in question is numeric or non-numeric. Variables which are designed to evaluate on the basis of Number or quantity may be termed as quantitative variables while those which measure attribute and are used for characterization are called Qualitative variables. In the scenario above, the variable is concerned with the determination of concentration of nitrogen draining into water bodies, concentration follows that numeric calculations be Made in other to determine the amount of nitrogen in milligram per Litre in a particular water body in other to prevent its effect on wildlife which could result from excessive concentration in water bodies.


Related Questions

PLEASE HELPPPPP LOLLLLLL

Answers

Answer:

-6 1/2

Step-by-step explanation: M A T H W A Y Calculator

Answer :
-6/12
Explanation:

Mr smith earns $75 a day plus $35 for each car he sells if e is the amount he earned and c is the number of cars he sold which expression below shows how much mr smith will earn in a day

Answers

Answer:

110

Step-by-step explanation:

So if add 75 + 35 you will get the number 110

Really hoped this helped

The expression Mr smith will earn in a day is e= 75 + 35c.

What is expression?

A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:

An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an equation, a coefficient is a number that is multiplied by a variable.

Given:

Mr smith earns $75 a day plus $35 for each.

if e is the amount he earned,

and c is the number of cars he sold

So, the amount he earned

e= 75 + 35c

Hence, the expression is e= 75 + 35c.

Learn more about expression here:

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Please help on this

Answers

Answer:

no the equation is not proportional and

x       y

1        4

2       6

3       8

4       10

Step-by-step explanation:

Which line segments are intersecting?
А
B

Answers

B, it’s the ones that go through eachother

Answer:

The answer is B.

Step-by-step explanation:

Intersecting Definition: divide (something) by passing or lying across it.

Jeff sells a pack of 36 pencils for $3.25. Betsy sells a pack of 12 pencils for $1.50. Which is the better buy?

Answers

Answer:

Jeff is the better buy

Step-by-step explanation:

3.25/36=0.090277777

1.50/12=0.125

11 = 5 + 3w

w = what

Answers

Answer:

W = 2

Step-by-step explanation:

[tex]11 = 5 + 3w \\ \frac{ - 5 = - 5 \: \: \: \: \: \: \: \: \: \: \: \: \: \: }{ \frac{6}{3} = \frac{3w}{3} } \\ \\ w = 2[/tex]

Answer:

w=2

Step-by-step explanation:

5+3w=11

3w=11-5

3w=6

3w/3=6/3

cancel out the 3's on the left

w=6/3

w=2

Simplify the following.
- (3z)2

Answers

Answer:

-6z

Step-by-step explanation:

(3z)2=6z

Add the negative

-6z

Answer:

-(3z)2

distribute the -

-3z*2

Step-by-step explanation:

What are two factors of the composite number 46 other than 1 and 46?​

Answers

Answer:

Step-by-step explanation:

7

how do i show work for number 1 pls help

Answers

Answer:

The solution of given inequality satisfies the ( -2,-2) , (4 ,0) and (-2,0)

                     

Step-by-step explanation:

Given inequality

                      x - 3y < 5

a) From the graph we will choose point  x=-2 and y=-2

                    x - 3y < 5

                  -2 - 3(-2) < 5

                  -2 + 6 < 5

                    4 < 5

b)  From the graph we will choose point  x= 4 and y= 0

                x - 3y < 5

               4 - 0 < 5

                 4 < 5

c)  From the graph we will choose point  x= -2 and y= 0

                x - 3y < 5

               -2 - 0 < 5

                 -2 < 5

The solution of given inequality satisfies the ( -2,-2) , (4 ,0) and (-2,0)

                     


Andrea paid $60.75 for 9 sandwiches. Each sandwich costs the same amount.
Use the drop down menus to write an equation for the price, p, of one sandwich.

P x _______=____??

Answers

Answer:

Px9=60.75

Step-by-step explanation:

Work out the area of the triangle :)

Show working out plz:)

Answers

the formula for triangle area is b•h/ 1/2. so you would do 12•5=60. then divide that by 2 to get 30

Pls look at the picture answer correctly asap

Answers

Answer:

D

Step-by-step explanation:

i had the same question

Look at the picture. Also UwU

Answers

Answer:

c

Step-by-step explanation:

Answer:

-0.5

Step-by-step explanation:

What is the value of h in the figure below? In this diagram, ABAD ~ ACBD.
B
h
A
C
D 4
20

Answers

Answer:

is it A and C ):

Step-by-step explanation:

The value of h is 8 units.

What are similar triangles?

"Two triangles are similar when their corresponding sides are in proportion and all corresponding angles are equal."

For given question,

ΔBAD and ΔCBD are similar triangle.

So, their sides are in proportion.

[tex]\Rightarrow \frac{BA}{CB}= \frac{AD}{BD}= \frac{BD}{CD}[/tex]                    ..................(i)

For given figure,

BD = h, CD = 4 units

Now, we find the length of the side AD.

⇒ AD = AC - CD

⇒ AD = 20 - 4

⇒ AD = 16 units

From (i),

[tex]\Rightarrow \frac{AD}{BD}= \frac{BD}{CD} \\\\\Rightarrow \frac{16}{h} =\frac{h}{4}\\\\ \Rightarrow 16\times 4=h\times h\\\\\Rightarrow h^2=64\\\\\Rightarrow h=8[/tex]

Therefore, the value of h is 8 units.

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Joey wants to buy the new play station 4. The play station 4 costs $300 and each game costs $60. If he has $700 to spend, what is the maximum number of video games he can buy?

Answers

Subtract 300 from 700. Once you’ve done that, divide 700 from 60. You should get 11.6 or 11 games.

Which pair of triangles can be proven congruent by SAS?

2 identical triangles are shown. The triangle is reflected across a line to form the second triangle.
2 identical triangles are shown. The triangle is rotated 90 degrees to form the second triangle.

Answers

Answer:

Option 2.

Step-by-step explanation:

Got it right on edg. Hope this helps!

Question 9 ♡
Mr. Brown asked Arlo and Bindi to each write an equation that represents a proportional relationship between the variables x and y.
Here are their equations.
• Arlo: y = 2x
• Bindi y=-3x
Which statement is true?
A Both equations represent a proportional relationship.
B Neither equation represents a proportional relationship.
© Only Arlo's equation represents a proportional relationship
Only Bindi's equation represents a proportional relationship.

Answers

Answer:

Hi! The answer is A hope I helped

Step-by-step explanation:

Answer:

its A

Step-by-step explanation:

Rewrite using the distributive property: 24 + 16

Answers

Answer:8(3+2)

Step-by-step explanation: Find gcf which is 8 then think what 24 divide 8 equal and think what 16 divide 8 equals.

SOMEONE PLEASE PLEASE HELP!!!!

Answers

X = 1 hope this helps :)

Answer:

x=1

Step-by-step explanation:

3x-3/5 = 2x-2/4

4(3x-3) = 5(2x-2)

12x-12 = 10x-10

-12. +10 -12 +10

-2/-2 = -2x/-2

Find the Area of the figure below, composed of a rectangle and a semicircle. Round to the nearest tenths place.

Answers

Answer:

Area of the composite figure = 175.1 square units

Step-by-step explanation:

Area of the composite figure given in the picture = Area of the parallelogram + Area of the semicircle formed on one side of the parallelogram

Area of the parallelogram = Base × Height

                                           = 30 × 5

                                           = 150 square units

Area of the semicircle = [tex]\frac{1}{2}(\pi r^{2})[/tex]

                                     = [tex]\frac{1}{2}(\pi)(\frac{8}{2})^{2}[/tex]

                                     = 8π

                                     = 25.13

                                     ≈ 25.1 square units

Now area of the complete figure = 150 + 25.1

                                                       = 175.1 square units

Imagine a cross-section of the prism formed by a plane that is perpendicular to the bases of the prism.

What must be true about the cross section?

Answers

Answer:

1. the cross section is a rectangle 2.the cross section is a trapezoid 3.the cross section is a rectangle 4.the cross section is a point

Step-by-step explanation:

Step-by-step explanation:

Cross section dimensions

what is the answer to this The sixth grade teachers ordered 54 bags of candy to be split among 12 students. How many bags of candy will each student receive? Write your answer as a fraction and as a decimal

Answers

Answer:

The answer is 4.5 and 9/2

Step-by-step explanation:

First

54 / 12 = 4.5

Then

Change it into a fraction

Write is fraction form 4.5 / 1

Multiply both numerator and denominator by 10 for every number after the decimal point

4.5 × 10

1 × 10

Which will equal 45/10

Then Reduce the fraction gives 9/2

1,3,1,9,1,27,1 identify a pattern in the given list of numbers

Answers

There is a one ever other number?

Answer:

multiplys 3 each time

Step-by-step explanation:

3 x 1. 3 x 3. 9 x 3

Which is the graph of g(x) = (0.5)X + 3 – 4?
121
8-
4-
-12
-8
4
00
х

Answers

Answer:

slope is 1/2 and the y intercept is -1

Step-by-step explanation:

The perimeter of a square garden is 12 km. Find its area.​

Answers

Answer:

The area of the garden is 9 km²

Step-by-step explanation:

If the garden is a square, that means that it's side length is one fourth of the total perimeter, giving us a length and width of 3km

That means that it's area is 3km × 3km, or 9km²

144 km because all sides of a square are equal and length times breadth is the area

In an injection-molding operation, the length and width, denoted as X and Y, respectively, of each molded part are evaluated. Let A denote the event of 48 < X < 52 centimeters B denote the event of 9 < Y < 11 centimeters. Construct a Venn diagram that includes these events. Shade the areas that represent the following:

a. A
b. A ∩ B
c. A' ∪ B
d. A ∩ B
e. If these events were mutually exclusive, how successful would this production operation be? Would the process produce parts with X = 50 centimeters and Y = 10 centimeters?

Answers

Answer:

attached below

Step-by-step explanation:

Attached below are the Venn diagrams

A :  48 < X < 52   cm

B : 9 < Y <  11 cm

a) A

b) A ∩ B

c) A' ∪ B

d) A ∪ B

e)  for events to be mutually exclusive it means that both events can not occur simultaneously i.e. A ∩ B = 0

the process would not be successful hence the process would not produce parts with X = 50 cm and Y = 10 cm

A ladder leans against the side of a house. The angle of elevation of the ladder is 73°, and the top of the ladder is 14 ft above the ground. Find the distance from the bottom of the ladder to the side of the house. Round your answer to the nearest tenth.

Answers

Answer:

4.3 feets

Step-by-step explanation:

Given that:

Angle of elevation = 73°

Horizontal distance from foot of ladder to bottom of wall = x feets

Height of ladder = 14 feets

The horizontal distance, x :

Using trigonometry :

Tan θ = opposite / Adjacent

Tan θ = 14 / x

Tan 73 = 14 / x

3.2708526 * x = 14

x = 14 / 3.2708526

x = 4.2802295

x = 4.3 feets

To keep a heavy box sliding across a carpeted floor at constant speed, a person must exert a force on the box. This force is used primarily to overcome which of the following forces?
A. Air resistance.
B. The weight of the box.
C. The frictional force exerted by the floor on the box.
D. The gravitational force exerted by the Earth on the box.

Answers

Answer:

D bcuz without gravity everything would be floating and you wouldn't get it anywhere

Answer:

It’s c

Step-by-step explanation:

Hurry I need help im offering 30 points!!!!

Answers

The answer is 5 and 1

If 12 gallon of paint covers 18 of a wall, then how many quarts of paint are needed for the entire wall?

Answers

Answer: 16 quarts

Step-by-step explanation:

There are 4 quarts per 1 gallon.

You need 4 gallons total to cover the wall.

4 x 4=16

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Expenses for these events were paid from funds in the classtreasuries, with the balance coming from individual ticket charges. The two key differences between the events were the style of attire and theattendees. The junior prom called for semiformal attire and was attended mainly by Juniors. In contrast, the senior prom called for formal attireand was attended mainly by seniors. The similarities clearly outweigh the differences in both number and importanceCombining these already similar events is the simplest solution to what is quickly becoming an overwhelming financial burden on studentsand their families. Hosting one event costs roughly half much as hosting two events. A joint prom would require a much smaller contributionfrom each class fund, leaving a hefty balance in each class account to apply toward other activities. 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