Measuring the drug use of the residents of a city has always been difficult. In the past, current drug use was estimated from questionnaire responses, but due to the social stigma associated with drug use, a large amount of response bias was known to be present. A proposed method for measuring a city's current drug is to measure the amount of drugs detected in the inflow to the city's wastewater treatment facility. This method was used to compare the Marijuana usage, through the measurement of the active ingredient THC-COOH, of London versus Milan over a 3 week period. Samples were made at randomly chosen times throughout the day for 21 consecutive days in both cities. Units are mg/day/1,000 people. What are the two independent samples

Answers

Answer 1
What answer help me solve

Related Questions

If the mass of a 25 meter long wire is 5 kg then find its mass per
meter.

Answers

Answer:

0.2 kg per meter

Step-by-step explanation:

5÷25=0.2

Find the volume of the figure. Round to the nearest tenth if necessary.
1 point
3.4 in
4.8 in
25

Answers

Answer: 34 in^3

Step-by-step explanation:

Surface area of triangle = 1/2 x  3.4 x 2.5 = 4.25

To find the volume of the prism, multiply the surface area of the triangle by length.

So 4.25 x 8 = 34 in^3

Solve using the quadratic equation.
[tex]3x^{2} -6x-24[/tex]
Solution 1: ___
Solution 2: ___

Answers

Answer:

X = 4

X = -2

Step-by-step explanation:

Rate And Like. Salute.

GHJU is a rhombus. how could you prove that <3~=<2? this doesn’t have to be a formal proof, just a basic outline of an augment. how would you approach this proof?

Answers

Answer:

Angle 3 is equal to Angle 2 because when you have a rhombus, the diagonals will always bisect the angles.

Step-by-step explanation:

Zaria rolls a dice and flips a coin. What is the probability that she will get a number greater than 3 and heads?
Please show steps

Answers

Answer:

Hello love! Well sense we are aiming for heads thats a 1/2 chance sense a coin has two sides heads and tails and sense we are aiming for a numbers higher then 3 on a dice our probability for that will be 3/6 sense the numbers higher then 3 on a dice our 4, 5 and 6 so we would multiply those probability so 1/2 x 3/6 and that equals our answer 1/4

The ratio of seventh graders to sixth graders on a chess team is 5 to 3 . What is the ratio of seventh graders to total chess players ? Enter the correct answer in the box

Answers

Answer: 5 : 8

Step-by-step explanation:

The ratio of seventh graders to sixth grader on the team is 5 : 3.

Assuming that only seventh and sixth graders are in the team, the total number of chess players at the most simple basis is:

= Number of seventh grade students in ratio + Number of sixth grade students in ratio

= 5 + 3

= 8 students

There are 5 seventh graders so the ratio will be:

= 5 : 8

Note: The chess team will most likely have more than 8 members but the  ratio of seventh graders to total chess players will still be 5 : 8.

Lucy loves to wear gloves. She has four red gloves and two blue gloves in her drawer. They are not separated into pairs. One dark morning, she pulls out two gloves to wear to school. She puts on the gloves.

A. Blue Gloves
B. Red gloves
C. Matching gloves


Which one

Answers

Matching gloves........

Identify the figure. Then state how many bases, faces, edges, and vertices there are.
Name:
Bases:
Faces:
Edges:
Vertices:

Answers

Answer:

name: pentagonal pyramid

bases: one

faces: 5

edges: 10

vertices: 6

Step-by-step explanation:

what is the slope of a line that passes through (2, -5 ) and (6, -2 )

Answers

Answer:

3/4

Step-by-step explanation:

-2-(-5) divided into 6-2

-2 +5 divided into 4

3 divided into 4

Answer:

Answer:

3/4

Step-by-step explanation:

-2-(-5) divided into 6-2

-2 +5 divided into 4

3 divided into 4

Step-by-step explanation:

I need the answer to this

Answers

Answer:

1

Step-by-step explanation:

12/4 + 2 * 1/2 - 3 = 1

A fish is ascending at a
rate of 0.74 feet per
second. What is the
change in the location of
the fish after 22 seconds?

Answers

Answer:

he will have ascended 16.28 ft

Step-by-step explanation:

.74x22=16.28

What are the measurements of each angle?

Answers

Answer:

2. 70

3. 70

4. 110

5. 110

6.70

7. 70

8. 110

Step-by-step explanation:

a straight line = 180 so 1+2 has to = 180 1+3 has to = 180 2+4 has to = 180 and so on

this is fairly easy yet i cannot do this

Answers

Answer:

( -9, -6)

Step-by-step explanation:

The red dot is the original (6, 9)

The blue dot is when it is rotated 270 degrees clockwise (-9, -6).

A triangle has three angles that measure 30 degrees, 70 degrees What is the value of x?

Answers

Answer:

x = 80

Step-by-step explanation:

Sum of all the angles of triangle = 180

30 + 70 + x = 180

       100 + x = 180        {Subtract 100 from both sides}

                x =  180 - 100

                x = 80°

What is the value of x?

Answers

Answer:

C) [tex]8\sqrt{2}[/tex]

Step-by-step explanation:

Answer:

8√2

Step-by-step explanation:

The 45-45-90 triangle theorem states that the two congruent sides of an isoceles right triangle are the same, and the hypotenuse of the triangle is √2 times more than the common side. So, if the common side is 8, then the hypotenuse is 8√2.

Consider the cases SSS, AAS, ASA, SAS, and SSA. For which of these cases are you unable to solve the triangle using only the Law of Sines?

Answers

Answer:

SSS and SAS

Step-by-step explanation:

To use the law of sines we need to know two angles and one side or two sides and one angle which should be opposite to one of known sides.

SSS - unable to solve as no angle is knownAAS - two angles and non-included side, able to find the missing angle solve the restASA - two angles and the included side, able to find the missing angle solve the restSAS- two sides and the included angle, unable to solveSSA - two sides and non-included angle, able to find the other angles and solve fully

What is the probability of landing on red and rolling a number greater than 2?

Answers

Answer:

the probability of rolling a number greater than 2 is 2/3

Step-by-step explanation:

because 3 4 5 and 6 are greater than two we have 4 numbers greater than 2 so 4/6 is 2/3 when simplified

How could you represent the large square as a power of 10?

Answers

Answer:

by putting a power 2 of and that will do it I think

Step-by-step explanation:

sorry if i'm wrong

Representation of the large square as a power of 10 as,

⇒ 10²

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

To find representation of the large square as a power of 10.

Let one box of large square represent by 1.

Then, The Representation of the large square as a power of 10 is,

⇒ 1 × 100

⇒ 10²

Since, There are 100 boxes in large square.

Thus, Representation of the large square as a power of 10 as,

⇒ 10²

Learn more about the rectangle visit:

https://brainly.com/question/2607596

#SPJ2

Help help help help Dont send a link Help me

Answers

The answer is true correct me if wrong

David leaves the supermarket at 1810
He drives 20 miles to his home.
The speed limit for the journey is 30 mph.
David drives within the speed limit.
(b) Can David get home before 1900?

Give reasons for your answer.

Answers

Answer:

The total distance David has to travel 20 miles.

The speed limit is 30 mph. He leaves supermarket at 18 10 , he has 50 minutes to get home before 1900.

when traveling within the speed limit he can reach on time because he has to travel only 20 miles which is possible and it won't take him 1 hour according to the 30 mph speed limit.

Write each equation in standard form -3x+5y=-5

Answers

Answer:

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a ...

Step-by-step explanation:

standard form: 3x- 5y = 5

What is the measure of angle z in this picture?

Answers

Answer:

z = 137 degrees

Step-by-step explanation:

Angle 43 and angle z make a straight line, which is 180 degrees

43+z = 180

Subtract 43 from each side

43+z-43 = 180-43

z =137

Erik took out a loan for $8400 for 6 years at a compound interest rate of 5.5%-
How much interest does Erik owe from the loan?
$11,582.28
$108,084.86
$2,772
$3,182.28

Answers

Answer:

$2772

Step-by-step explanation:

Given data

Principal= $8400

Rate= 5.5%

Time= 6 years

The expression for the simple interest on the loan is found using the expression below

SI= PRT/100

substitute

SI= 8400*5.5*6/100

SI= 277200/100

SI= $2772

Hence the simple interest is  $2772

Answer:The answer is actually 3,182.28

Step-by-step explanation:

4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form

Answers

Answer:

4(x²+14x+49)-49+13=0

4x²+56x+196-49+13=0

4x²+56x+160=0

D=3136-2560=576

x1=-56+24/8=-4

x2=-56-24/16=-10

A binder is 9 inches wide, 12 inches long and 1.5 inch thick. what is the volume of documents the binder can hold?

Answers

Answer:

162 square inches

Step-by-step explanation:

9*12*1.5

Answer:

162 cubic inches

Step-by-step explanation:

9 times 12 times 1.5

What is an equation of the line that passes through the points (-1, 6) and
(-1, -5)?

Answers

Answer:

x = -1

Step-by-step explanation:

(-1 , 6)  ; (-1 , -5)

There is no change in x-coordinate values.

So, the is parallel to y-axis

x = -1

         

Chris types at an average speed of 50 words per minute. He has already typed 1,250 words of his final paper. The paper has to be
more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to
type his paper?
OA. 50x > 3,750
ОВ.50x - 1,250 > 3,750
OC. 50x > 5,000
OD. 50x + 1,250 > 3,750

Answers

Answer:

D. 50x+1,250>3,750

Step-by-step explanation:

please help with 13, giving brainliest

Answers

x=6, s=31, r=118, Q=31

Answer:

6

Step-by-step explanation:

m《 Q+ m《R +m《S =180 (Angles of a triangle add up to 180 degrees )

8x-17 +19x +4 +5x+1=180

32x-12=180

32x =180+12

32x =192

32X /32=192 /32

x=6

substitute x to angle Q, R and S

mQ=8 (6)-17

=31

mR=19 (6)+4

=118

mS=5 (6)+1

=31

Find the volume of the irregular
figure.
1 cm
2 cm
3 cm
?
cm3
2 cm
1 cm
7 cm

Answers

Answer:

252 cm cubed

Step-by-step explanation:

29 cm 3

you multiply 1,2,3 and you get 6 !! and then you do 7,1,2, and you get 14 then you take 6 plus 14 = 20 !!

What’s the length of a segment whose endpoints are (8,-6) and (-4,2)?

Answers

Answer:

Step-by-step explanation:

Imagine or draw a triangle with horizontal leg length 8 - (-4), or 12, and vertical leg length |-6 - 2|, or 8.  Use the Pythagorean Theorem to find the length of the hypotenuse:  

length of hypotenuse = +√(8² + 12²) = √208 = 4√13  (Answer A)

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And the tall American trees were dangling their thick branches right down over his head.Which best states how the structure of each excerpt supports a different tone?a) Anaya structures his text as an anecdote, which gives it a humorous tone, while Nye structures her text as a counterclaim, which gives it a defensive tone.b) Anaya structures his text as an explanation, which gives it an authoritative tone, while Nye structures her text as an impression, which gives it a soothing tone.c) Anaya structures his text as a theory, which gives it an academic tone, while Nye structures her text as a list, which gives it an unemotional tone.d) Anaya structures his text as a news report, which gives it a neutral tone, while Nye structures her text as a critique, which gives it a judgmental tone. what is the quotient of y and 11 identify and classify the types of noun I ate Cherry of the cake Please help. Memories of a MemoryHave you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? Have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? If so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. New insights into human memory suggest human memories are really a mixture of many non-factual things.First, memory is vague. Imagine your room at home or a classroom you see every day. Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? Was that really your father throwing rocks into the river with you when you were seven? The human brain may be quite remarkable indeed. When it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture.Which phrase from the text most clearly explains the main idea of the second paragraph?A. Memory is vagueB. 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