A scientist wants to predict the number of nitrates in the river. Which sample is better for making this prediction?
Sample A: A random sample of 5 gallons of water from one location in the river
Sample B: A random sample of 5 gallons of water from five different locations in the river

Answers

Answer 1

Answer:

Sample B: A random sample of 5 gallons of water from five different locations in the river

Step-by-step explanation:


Related Questions

I can determine if a sequence is arithmetic and find the common difference. (1.4) a) – 3, 1, 5, 9, 13, .... b) -12, -6, -3, -1.5....​

Answers

The first one is arithmetic and the difference is -4. The second one, however, is geometric with a multiplier of 1/2.

Solve the inequality
-2(5x + 1) > 48

Answers

Answer:

x<-5

Step-by-step explanation:

-10x-2>48

-10x-2+2>48+2

-10x>50

-10x/-10 > 59/-10

= x<-5

Which sum is equal to
8/12

Answers

Answer: 2/3

Step-by-step explanation:

For example, if we multiply the numerator and denominator of 2/3 by 4 we get. 2/3 = 2×4 / 3×4 = 8/12 which is an equivalent fraction of 2/3.

Answer:

either 4/6 or 2/3

Step-by-step explanation:

Because 12 can be divide in half which is 6, and 8 divided by 2 is 4, so your fraction is now 4/6. if this answer isn't on the screen then you have to do it again: 4 divide by 2 is 2, and 6 divided by 2 is 3, so your fraction is now 2/3.

Hope this helps you. Tell me if it doesn't or if it does.

PLEASE HELP I WILL MARK BRAINLIEST

Answers

Answer:

Option 2

Step-by-step explanation:

Because it shows that it is going up in a half not a whole.

HELP PLS ASPPPPPPPPPP​

Answers

the answer is c i’m pretty sure

Answer:

C x is equal to or greater than 3

Please help.Find the circumference (to the nearest whole number). Use 3.14 for pi.

A.116 in
B. 88 in
C.44in
D.None of the above

Answers

B. 88in , hopefully that helps you:))

The circumference is approximately 88 inches.

The correct option is B. 88 in.

To find the circumference of a circle, we can use the formula:

C = 2πr,

where C represents the circumference and r represents the radius of the circle.

Given that the radius, r, is 14 inches, we can substitute this value into the formula:

C = 2 x 3.14 x 14.

C ≈ 87.92 inches.

Thus, the circumference is approximately 88 inches.

Learn more about circumference of a circle here:

https://brainly.com/question/17130827

#SPJ2

what is a equation for a point that is translating 2 spaces left, 3 spaces up and then reflects over the x axis

Answers

(x-2, -y+3) is the rule of the point

A Redbox movie costs $1.50. Redbox charges $1 per day for late movies. If Henry's movie is 3 weeks late, how much money does he owe for his movie?

Answers

Answer:

$22.50

Step-by-step explanation:

3 weeks = 21 days

21 × 1 + 1.50

21 + 1.50

22.50

A vase in the shape of a cube measures 8 inches on each side. The vase is half full with water. How many cubic inches of water are in the vase?


The solution is
??????
in³.

Answers

Answer:

64in cubed

Step-by-step explanation:

Because if the vase if half full, half of 8 is 4. To find the volume of a cube is l x W x H. So 4 x 4 x 4= 64.

PLEASEEE HELP
I NEED ANSWRR NOW

Answers

Answer:

B and C is your answer BH x 1/2 is formula of triangle and formula of rectangle/parallelogram is BH

Please help WORTH 20 POINTS the highlighted one is wrong

Answers

Answer:

the answer is b

Step-by-step explanation:

Does your question give a description on how the shoe sell is but I think it might be b but I’m not sure

In the function f(x), x is replaced with 3x.
f(x)=1/2sin(x)−4
What effect does this have on the graph of the function?
A. The graph is vertically stretched by a factor of 1//3.
B. The graph is vertically compressed by a factor of 1/3.
C. The graph is horizontally stretched by a factor of 1/3.
D. The graph is horizontally compressed by a factor of 1/3.

Answers

Just took the test, so the answer is...

D. Horizontally compressed by a factor of 1/3

[tex]f(x)=\frac{1}{2}sin(x)-4[/tex] is horizontally compressed by a factor of 1/3 to get [tex]f(x)=\frac{1}{2}sin(3x)-4[/tex]

Option D is correct

What is horizontal compression?

Note that:

If a function [tex]f(x)=Asin(x)[/tex] is transformed to [tex]g(x)=Asin(kx)[/tex], it means that the function f(x) is horizontally compressed by 1/k

Relating this rule to the given function [tex]f(x)=\frac{1}{2}sin(x)-4[/tex]

If x is replaced with 3x, the function will become:

[tex]f(x)=\frac{1}{2}sin(3x)-4[/tex]

This means that the graph of  [tex]f(x)=\frac{1}{2}sin(x)-4[/tex] is horizontally compressed by a factor of 1/3 to get [tex]f(x)=\frac{1}{2}sin(3x)-4[/tex]

Learn more on horizontal compression of graphs here: https://brainly.com/question/2938738

PLEASEEEEEE HELPPPPPP IM SO CONFUSED IVE BEEN TRYING TO SOLVE FOR DAYS

I WILL ALSO GIVE BRAINLIEST!!!

A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the algae, f(d), in mm, after d days:

f(d) = 9(1.04)d

Part A: When the biologist concluded her study, the radius of the algae was approximately 12.81 mm. What is a reasonable domain to plot the growth function?

Answers

Answer:

9 days

Step-by-step explanation:

1= 9*(1.04)^d

12.81/9= (1.04)^d

1.423= (1.04)^d

log(1.423)= d *log(1.04)

0.1532=d * 0.017

d= 0.1532/0.017

d=9

The reasonable domain to plot the growth function is in the interval [0,9].

Answer:

9 days

Step-by-step explanation:

Solve the inequality 8c + 6 < -6c - 1

Answers

Answer:

c < - 0,5

Step-by-step explanation:

8c + 6 < - 6c - 1

// move the terms

8c + 6c < - 1  - 6

// collect the terms

14c < - 7

// divide both sides by 7

2c < -1

// divide both sides by 2

c < - 0,5

8c + 6 < -6c - 1

8c + 6c < -1 - 6

14c < -7

c < -7/14

c < -1/2

Hope it helps!

Solve the equation.


4 2/5 + k= −3 2/11

k=

Answers

Answer:

k = -3636

Step-by-step explanation:

you subtract 425 from both sides, it cancels out on the left and adds more to the right

HELP PLEASE

answer choices:
A)
The graph is reflected across the x-axis.


B)
The graph is translated 2 units in the positive x-direction.


C)
The graph is vertically shrunk by a factor of ½.


D)
The graph is reflected across the y-axis.

Answers

Answer:

I think its C. I'm not sure I havent been thought this lesson.

Answer:

B)

The graph is translated 2 units in the positive x-direction.

Step-by-step explanation:

i just got it right on the test

Part E Find half of the time that Devon skied without falling, and write inequalities to compare it with the times others in the family skied without falling.

Answers

Answer:

For Half of Devon's Time you would put 172 divide by 2 equals 186. For comparison:

kelvin 223>86

Lori 55<86

Vanessa 265>86

Celia 112>86

Arnold 356>86

Step-by-step explanation:


A researcher needs to split 20 plants into two treatment groups of 10 plants each. How many different groupings can be formed?

Answers

2

If there are only 20 plants and they have to be broken up into groups of 10 then the answer would be 2.

-Ɽ3₮Ɽ0 Ⱬ3Ɽ0

Who can me with this Help????

Answers

Answer:

Step-by-step explanation:

what is the broken image part supposed to say?

Find the solution set of the inequality.

5<−5+|3a|

Answers

Answer:

5 < -5 + |3a|

<=> 10 < |3a|

<=> 3a > 10 or 3a < -10

<=> a > 10/3 or a < -10/3

What is the decimal multiplier to decrease by 3.9%?

Answer: 0.961

Answers

Answer:

Answer is right!

Step-by-step explanation:

Have a nice day!

Help????????????? I need answer

Answers

Answer:  Choice C.  y - 2 = 3(x - 5)

=====================================================

Work Shown:

y - y1 = m(x - x1)

y - 2 = 3(x - 5)

The m is the slope, while the (x1,y1) refers to the point the line goes through.

Side note: If you wanted to convert this to slope intercept form, then it would become y = 3x - 13. The y intercept is -13.

Answer:

C

Step-by-step explanation:

the number of cars in a parking lot are no more than 7
Which graph shows only the solutions of the inequality that makes sense for this situation?

Answers

Answer:

its on the bottom of the first answer the third one

Step-by-step explanation:

The First graph shows only the solutions to the inequality that makes sense for this situation.

What is Inequality?

Relation between two mathematical identities which is not equal that is it can be either greater than or less than or greater and equals to or less and equals to etc, is called Inequality.

In the given problem the variable is the number of cars.

Let us assume that the variable c represents the variable quantity which is the number of cars for the inequality.

Now we know that number of cars is always a positive and whole number.

So the suitable inequality to represent the condition that the number of cars is not more than 7 that is less than or equals to 7 is,

[tex]c \leq 7[/tex]

So the solutions are c=0,1,2,3,4,5,6,7

Hence the first graph shows the correct solution for the given inequality condition.

To learn more about Inequality here -

https://brainly.com/question/25275758

#SPJ2

A thrift store was selling an Atari 2600 for $80 before deciding to have a
40% off promotion. A customer comes in to buy the console and pays with
a 10% off any one item coupon. The coupon states that the 10% off
coupon applies after any in-store promotions. How much will the
customer pay after both discounts?

Answers

Answer:43.2

Step-by-step explanation:

first you do 80-40% and then -10%

F(t)=212-6t
what is the value of t when F (t) = 140?

Answers

Answer: -628

Step-by-step explanation:

F(140) = 212 - 6(140)

F(140) = 212 - 840

F(140) = -628

13.65 = h + 4.88 What the answer

Answers

Answer:

h = 8.77

Step-by-step explanation:

Isolate the variable, h. Note the equal sign, what you do to one side, you do to the other. Subtract 4.88 from both sides:

h + 4.88 = 13.65

h + 4.88 (-4.88) = 13.65 (-4.88)

h = 13.65 - 4.88

h = 8.77

8.77 is your answer for h.

~

the population of a small town is 1847 and is increasing at a rate of 3.7% per year. Use an exponential function to find the population of the town after 13 years he​

Answers

Answer:

4.498723571*10^10

Step-by-step explanation:


Sully saves 2/3 of her paycheck for bills. If she makes $1,983, how much does she
have to pay her bills?

Answers

2/3
3 being what she makes as a whole
3x661=1983
So this means that we need to multiply 2 by 661 to get our answer
2x661=1322
Answer: 1,322

Jacob's piggy bank has
18 quarters, 20 dimes, 24 nickels,
and 43 pennies. He chooses a coin,
does not replace it, then chooses
another. What is the probability
that he chose a dime then
a nickel?

Answers

Answer:

Step-by-step explanation:

Find the unknown term in each proportion.

1/3 = ?/12

Answers

Answer:

Step-by-step explanation: 4/12

Answer:

4

Step-by-step explanation:

4 is the missing number! i hope this helps, have a great day:)

Other Questions
Hurry Im being timed!!! A suitcase is 27 inches long and24 inches wide. What is thediagonal length of the suitcase? Which of the following was signed by the colonists to separate themselves politically from Britain? Please I need do know this asap! Give ping brainliest! What is another term for migration? Question 1 (10 points) SavedWhat was a result of banks closing during the Depression? AKS: 38cQuestion 1 options:Many average Americans lost all their savings and businesses and citizens had trouble getting loans.Banks were forced to print their own money and to rely on foreign money for loans to keep their doors open.The government had to supply money to all businesses and businesses and citizens had trouble getting loans.Many average Americans lost all their savings, and Americans had to rely on foreign money for loans to buy goods.Question 2 (10 points) Which of President Roosevelts programs helped Georgians by providing jobs for 78,000 young single men in the state to complete helpful projects such as building forest trails and roads, planting trees to reforest the land and control flooding, and building parks and other government facilities? AKS: 38eQuestion 2 options:Agricultural Adjustment ActTennessee Valley AuthorityRural Electrification AuthorityCivilian Conservation CorpsQuestion 3 (10 points) Why did Eugene Talmadge oppose most of the New Deal Programs? AKS: 38fQuestion 3 options:He feared that many Georgians would turn to supporting the Republican Party.He was angry that Roosevelt supported limiting the amount of cotton planted in the state.He feared that the federal government would come into the state and end segregation.He disliked increased federal spending and economic regulation by the national government. He saw FDR's federal New Deal programs as "socialism".Question 4 (10 points) Which of the following was a way that President Roosevelt impacted the state of Georgia? AKS: 38dQuestion 4 options:The REA brought electricity to big cities.The Social Security Administration helped younger people by giving them health insurance.The AAA stabilized stock prices and helped halt closing of banks in Georgia.He created a treatment center in Warm Springs to provide therapy for those with polio and other physical disabilities.Question 5 (10 points) Why did President Roosevelt build a vacation home in Georgia? AKS: 38dQuestion 5 options:He wanted to carry Georgia in his next election.To make sure Eugene Talmadge was implementing his New Deal programs.To monitor the progress of Tom Watsons rural free delivery program.He spent much time treating his polio at the thermal pools in Warm Springs.Question 6 (10 points) What factor(s) led to economic growth in Georgia during World War I and contributed to the war effort? AKS: 38aQuestion 6 options:Military bases were built in Georgia to train soldiers and provide other services.Sharecropping ended because the economy got much better.Electricity was provided to rural areas.Liberty ships were built in Savannah and Brunswick.Question 7 (10 points) Which of the following did the Rural Electrification Authority, one of Roosevelts programs, do? AKS: 38eQuestion 7 options:Trained young single men from the countryside to be electriciansProvided electrical appliances and farm equipment to farmersInvented the electric fence to keep predators away from farmsExtended electrical lines to the rural areas in the country and made electricity more affordableQuestion 8 (10 points) How are the droughts in the 1920s and the boll weevil similar? AKS: 38bQuestion 8 options:They were natural disasters that led to agricultural problems in Georgia.They were bugs that damaged cotton production in Georgia and the South.The droughts wiped out the boll weevil in Georgia, which led to economic gain.They caused many people to move to Georgia.How did Governor Talmadge react to President Roosevelts economic policies? -He tried to get more dams built on Georgia rivers to provide electricity.-He used his power as governor to block New Deal policies being carried out in Georgia.-He was happy that Georgians could get money for not planting cotton.-He became a chief spokesman for the re-election of Roosevelt in 1936.Which of the following statement is can be inferred from the diagram above?-Factories should produce goods even if they cant sell them.-A country is better off economically if it doesnt produce anything.-People should buy products to keep the economy healthy even if they must go into extreme debt-Making products and selling products is very important for an economy to prosper. Will the solution (-3,-7) make the following system of equations a true statement. y = 4x + 5 y=4 - 4 No Yes 3(r-1) -2(r+3) =0 anybody know the answer to that ? What are software applications? What is one way the industrial revolution changed how people worked? define dystopian fiction i am really stuck in this one so help? I'll give you 30 points please need help Blological evolution is the process by which populations of organisms change over time. How could natural selection lead to evolution? what change after the fall of rome give me 5 stuff of what heppend 15 points 6ix9ine ayeeeeeeeeee The unit cell for tin (Sn) has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318 nm, respectively. If its density, atomic weight, and atomic radius are 7.30 g/cm3, 118.69 g/mol, and 0.151 nm, respectively. Determine its atomic packing factor. PLEASE HELP!!!!How is a check treated by the US government?a. as currencyb. as a legal contractc. as a negotiable instrumentd. as a promise from the payee to the payer Will give brainliest Need help! ASAP! Will mark brainiest!