D? Marco draws a card and replaces it 10 times from a standard deck of 52 cards. He draws 8 red cards and 2 black cards. What is the experimental probability of drawing a red card?
A) 1/2


B) 1/4


C) 2/3


D) 4/5

Answers

Answer 1

Answer:

D) 4/5

Step-by-step explanation:

He drew and replaced cards 10 times.

8 out of the 10 times, he drew a red card.

8/10 = 4/5

Answer: D) 4/5

You are correct.

Answer 2

Final answer:

The experimental probability of drawing a red card, based on the information given, is 4/5, since Marco drew 8 red cards out of 10 total draws.

Explanation:

The student is asking for the experimental probability of drawing a red card based on Marco's actual draws from a standard deck of 52 cards. Experimental probability is calculated by dividing the number of times the event of interest (drawing a red card) occurred by the total number of trials. In this case, Marco drew a red card 8 times out of 10 total draws.

Therefore, the experimental probability is:

Experimental Probability = Number of red cards drawn / Total number of draws = 8/10

When simplified, 8/10 equals 4/5. Therefore, the correct answer is:

Experimental Probability of Drawing a Red Card = 4/5


Related Questions

Can sum1 help me with this plzz

Answers

Sure, but with what question

Olympic volleyball player Bev Oden averaged 3.42 "kills" (spikes that end a rally) per game. Predict her number of kills in a 5 game match.

Answers

Answer: 17.1

Step-by-step explanation:

If she averages 3.42 kills per game, she should average that for each of the 5 games. You need to multiply 3.42 times 5 for the total of 5 games.

3.42 x 5 = 17,1

Bev Oden, achieve approximately 17 kills in a 5 game match .

To predict the number of kills Bev Oden will achieve in a 5 game match, we can use her average kills per game to make the calculation.

Given that Bev Oden averages 3.42 kills per game, we simply multiply her average by the number of games in the match.

Step-by-step calculation:

Average kills per game: 3.42Number of games: 5Total kills = 3.42 kills/game x 5 games = 17.1 kills

Therefore, Bev Oden is predicted to achieve approximately 17 kills in a 5 game match.

The radius of a circle is ________ to the tangent where the radius intersects the circle.
A. supplementary
B. perpendicular
C. parallel
D. congruent

Answers

It is B because tangent lines are always perpendicular to the radius
B the other person is right

Identify the equation of the translated graph in general form x^2-y^2=9 for T(-4,2)

Answers

Answer:

B

Step-by-step explanation:

If an equation of the form [tex]x^2-y^2=a[/tex] goes through a translation T (p,q), the transformed equation has the form  [tex](x-p)^2-(y-q)^2=a[/tex]

Using this, we can write the equation given as:

[tex](x-(-4))^2-(y-2)^2=9\\(x+4)^2-(y-2)^2=9\\x^2+8x+16-y^2+4y-4-9=0\\x^2-y^2+8x+4y+3=0[/tex]

So, B is the right answer.

Answer:

b. [tex]x^2-y^2+8x+4y+3=0[/tex]

Step-by-step explanation:

The given hyperbola has equation [tex]x^2-y^2=9[/tex].

This hyperbola is centered at the origin.

If this hyperbola is translated, so that its center is now at (-4,2), its equation now becomes;

[tex](x+4)^2-(y-2)^2=9[/tex]

We now expand to obtain;

[tex]x^2+8x+16-(y^2-4y+4)=9[/tex]

[tex]\Rightarrow x^2+8x+16-y^2+4y-4-9=0[/tex]

[tex]\Rightarrow x^2-y^2+8x+4y-4-9+16=0[/tex]

The correct choice is B.

[tex]\Rightarrow x^2-y^2+8x+4y+3=0[/tex]

50Points Plato Help!!

The number of teams who entered in a 3-on-3 charity basketbal ournament can be modeled by function T, where x is the number of years since the tournament first started. T(x)=4x+24
The entry fee paid by each team to enter the tounament can be modeled by tunction F, where x is the number of years since the tounament fist started.
F(x)=5x+45
Which function, R, best represents the total entry lees collected in the year since the tournament first started?

A.R(x)=20x^2+300x+1080
B.R(x)=20x^2+1080
C.R(x)=9x+69
D.R(x)=9x^2+29x+69


Answers

T(x) calculates the number of teams and F(x) calculates the entry fees.

To find the total entry fee, you would add the entry fee for each team together, so you need to add T(x) and F(x) together.

The answer would be C. R(x) = 9x +69

Answer:

T(x) calculates the number of teams and F(x) calculates the entry fees.

To find the total entry fee, you would add the entry fee for each team together, so you need to add T(x) and F(x) together.

The answer would be C. R(x) = 9x +69

A circle centered at the origin contains the point (0,-9) does (8, 17) also lie on the circle

Answers

Answer:

  No

Step-by-step explanation:

The magnitude of the distance from the origin to the point (8, 17) will be more than 17. That point is not on a circle of radius 9 centered at the origin. It is well outside the circle.

What's is 5x2/3
A. 3 1/3
B 3 2/5
C 5 2/3
D 10/15

Answers

Answer:

The answer is A. 3 1/3

Step-by-step explanation:

Simplify:

10/3

Then, convert to a mixed fraction:

3 1/3

Hope this helped.

The mathematical expression 5x2/3 = 15/3 x 2/3 = 30/9 = 5 2/3.

Option C is correct.

How do we calculate?

an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Step 1: Simplify 5x2/3

5x2/3 = (5 x 2)/3

5x2/3 = 10/3

Step 2: Simplify 10/3

10/3 = 3 + 2/3

10/3 = 5 2/3

An expression in math  can also be described as a statement having minimum of two numbers, or variables, or both and an operator connecting them.

Therefore, the correct answer is C.

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Please help me with this.

Answers

Answer:

c

Step-by-step explanation:

cause i am a math mttition

It is a rhombus because when we join the different coordinates which forms a rhombus

The answer is rhombus

Using the linear equation 3x+2y=6, express y in terms of x

Answers

Answer: any number

Step-by-step explanation: 3x+2y=6, 2y=6-3x, we want y by itself, so divide by 2 from both sides, y=3-1.5x, then we plug it into the equation,3x+2(3-1.5)=6, then solve. 3x+6-3x=6, 3x-3x=0,so 6=6, y could be any possible answer

The expression for y in terms of x is y = 3 - (3/2)x the linear equation 3x+2y=6 .

To express y in terms of x using the linear equation 3x + 2y = 6, we need to isolate y on one side of the equation.

Step 1: Move the 3x term to the other side of the equation.

Subtract 3x from both sides:

3x + 2y - 3x = 6 - 3x

2y = 6 - 3x

Step 2: Now, to solve for y, divide both sides by 2:

y = (6 - 3x) / 2

Step 3: We can further simplify the equation:

y = 6/2 - (3x/2)

y = 3 - (3/2)x

So, the expression for y in terms of x is y = 3 - (3/2)x.

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The scores on a standardized test are normally distributed with a mean of 500 and a standard deviation of 60. Jake scored 520 on the test. What percent of students scored below Jake? Include a step by step description of the process you used to find that percentage.

Answers

Subtract the mean from Jake's score:

520 - 500 = 20

Divide by the standard deviation:

20/60 = 0.33

Jake scored 0.33 standard deviation above the mean.

From the Z-table, 0.33 = 0.6293 = 62.93% of students scored below Jake.

Round to 63%

Answer:

z score is 0.33

( 0.6293) is the answer the next slot)

and 62.93% is last

Step-by-step explanation:

Five friends buy a shirt that costs x dollars and a pair of shoes that cost $24.00.

Answers

Let write as Math

5 friends

y dollar shirt

24.00 dollars shoes

5(y + 24)

= 5y + 5(24)

= 5y + 120

The answer will be 5y+120 dollars

Hope This Help:)

A figure is translated horizontally 4 units. Which drawing shows a correct translation? A B C D

Answers

Answer:

The Answer is C!! (With two L's pointing right)

Step-by-step explanation:

Answer:

Give the other person brainliest they deserve it!

Step-by-step explanation:

Evaluate the log without a calculator ( Show your work )

[tex]log_{25} \frac{1}{5}[/tex]

Answers

log 1/5 base 25
25^x=1/5
thinking of number that satisfy it
it is =-1/2

Answer:

[tex]\log_{25}(\frac{1}{5})=-\frac{1}{2}[/tex]

Step-by-step explanation:

Let

[tex]\log_{25}(\frac{1}{5})=x[/tex]

We rewrite as an exponential equation to obtain;

[tex]\frac{1}{5}=25^x[/tex]

We rewrite both sides of the equation as an index number to base 5.

[tex]5^{-1}=5^{2x}[/tex]

Since the bases are the same, we equate the exponents to obtain;

[tex]-1=2x[/tex]

Divide both sides by 2;

[tex]x=-\frac{1}{2}[/tex]

What is the future value of the 10% savings from earnings of $187.45 if it earns 5% annual interest, compounded monthly for 30 years? Use the compound interest formula to estimate the present value.

Answers

Answer:

$83.75

Step-by-step explanation:

To find the future value, we first need to define our variables.

P = 187.45 x 0.10 = 18.745

r = 5% or 0.05

t = 30 years

n = 12

Now we can use the formula:

[tex]A=P(1+\dfrac{r}{n})^{nt}[/tex]

[tex]A=18.745(1+\dfrac{0.05}{12})^{12(30)}[/tex]

[tex]A=18.745(1+\dfrac{0.05}{12})^{360}[/tex]

[tex]A=83.75[/tex]

So the future value after 30 years is $83.75.

The  future value of the 10% savings from earnings of $187.45 is $83.75.

Future value

Principal= 187.45 x 0.10 = 18.745

rate = 5%

time = 30 years

n = 12

Hence:

Future value=18.745 (1+0.05/12)^30×12

Future value=18.745 (1.05/12)^360

Future value=$83.75

Inconclusion the  future value of the 10% savings from earnings of $187.45 is $83.75.

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If 2.5 is a root of the equation 2x^2+5x−q=0, what are the possible values of q?

Answers

Answer:

q = -25[tex]10 +5 = \pm \sqrt{5^2-4*2*q} \\ 225 = 25-8q \\\\8q = -200 \rightarrow q = -\frac {200}8 = -25[/tex]

Step-by-step explanation:

Grab the generic solution of the equation. [tex]\frac 52 = \frac{-5 \pm \sqrt{5^2-4*2*q}}{2*2}[/tex]. Let's isolate the radical, and square both sides.[tex]10 +5 = \pm \sqrt{5^2-4*2*q} \\ 225 = 25-8q \\\\8q = -200 \rightarrow q = -\frac {200}8 = -25[/tex]

Answer:

since we know that x1=2.5

we can just just use vieta's theorem

x1+x2=-b/a

x1*x2=c/a

You work for a dress maker and your boss sends you to the fabric store to buy blue fabric. She tells you to buy the best deal. What is the best deal on fabric? A) 20 yards for $30.00 B) 40 yards for $45.00 C) 50 yards for $70.00 D) 65 yards for $85.00

Answers

Answer:

B 40 yards for $45 is the best deal at $1.13 per yard

Step-by-step explanation:

Break it down by finding the unit price per yard (divide cost by yardage)

A. 30/20 = $1.50 per yard

B. 45/40 = $1.125 per yard

C. 70/50 = $1.40 per yard

D. 85/65 = $1.30 per yard

Answer:a

Step-by-step explanation:

2. What's the area of a circle with radius 18 units? A. 36? units2 B. 324? units2 C. 18? units2 D. 9? units2

Answers

c. 18 is the answer you get

Answer:

1017.87602

Step-by-step explanation:

A = π R squared = π · 18 squared ≈ 1017.87602

Measure the length of the top of your desk in centimeters. Describe how you found the length

Answers

Answer:

55 centimeters

Step-by-step explanation:

Ok buddy, just say like 55 centimeters, and say you used a measuring tape.

An equal number of men and women were randomly selected and asked how many hours per week they spend exercising

Answers

so what’s the question?

Answer:

1. Greater than

2 less than

3. More

Step-by-step explanation:

the surface area of a cone is 16.8pi in. the radius is 3 in what is the slant height

Answers

Final answer:

The slant height of a cone with a radius of 3 inches and a surface area of 16.8π square inches is 2.6 inches.

Explanation:

In order to find the slant height of a cone, we need to understand the formula for calculating the surface area of a cone. The formula is πrs + πr². The given surface area is 16.8π and the radius is 3 in. This area consists of the area of the base (which is a circle of radius 3 in, hence area πr² = π(3)² = 9π) and the area of the side, which is πr times the slant height (s).

So, we subtract the base area from the total area to isolate the side area: 16.8π - 9π = 7.8π. This is equal to πrs, so we can set up the equation: 7.8π = 3πs (we replace 'r' with its given value 3). Solving for 's', we divide both sides of the equation by 3π, getting slant height 's' = 7.8π / 3π, which simplifies to 2.6 inches.

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Choose the correct answer.
If you do not pay the entire credit card bill, you are charged ____ on the unpaid part.

(1)a flat fee
(2)interest ​

Answers

Answer:

INTEREST just did it on odessey

Step-by-step explanation:

Answer:

If you do not pay the entire credit card bill, you are charged an interest on the unpaid part.

Step-by-step explanation:

If you do not pay the entire credit card bill, you are charged an interest on the unpaid part.

When you do not pay the entire bill or pay less than minimum or minimum amount, an interest is charged on the remaining balance.

The amount increases each month as the interest is added with the unpaid amount.

Write the expression as a square of a binomial if possible: 1/9 x^2+ 2/15 x y+ 1/25 y^2

Answers

Answer:  [tex]\bold{\bigg(\dfrac{1}{3}x+\dfrac{1}{5}y\bigg)^2}[/tex]

Step-by-step explanation:

The square of the trinomial exists only if (a + b)² = a² + 2ab + b²

[tex]\dfrac{1}{9}x^2+\dfrac{2}{15}xy+\dfrac{1}{25}y^2\\\\\\a=\sqrt{\dfrac{1}{9}x^2}=\dfrac{1}{3}x\\\\\\b=\sqrt{\dfrac{1}{25}y^2}=\dfrac{1}{5}y\\\\\\2\cdot a\cdot b=2\cdot \dfrac{1}{3}x\cdot \dfrac{1}{5}y = \dfrac{2}{15}xy\\\\\text{So, }\dfrac{1}{9}x^2+\dfrac{2}{15}xy+\dfrac{1}{25}y^2=\bigg(\dfrac{1}{3}x+\dfrac{1}{5}y\bigg)^2\\[/tex]

What is the frequency of the function f(x)?


f(x)=3cos(5x)+2




Enter your answer, in simplest fraction form, in the box.

Answers

Answer:

The frequency = 5/2π

Step-by-step explanation:

* Lets revise some facts about the trigonometry function

- If the function is f(x) = A sin (B x + C) + D  

* A is the amplitude  

- The amplitude is the height from highest to lowest points and  

 divide the answer by 2  

* The period is 2π/B  

- The period is the distance from one peak to the next peak

- Period and Frequency are related where frequency = 1/period

* C is the horizontal shift  

- The horizontal shift is how far the function is shifted to left  

 (C is positive) or to right (C is negative) from the original position.  

* D is the vertical shift  

- The vertical shift is how far the function is shifted vertically up

  (D is positive) or down (D is negative) from the original position.  

* Lets solve the problem

∵ f(x) = 3 cos (5x) + 2

∵ f(x) = A sin (B x + C) + D  

∴ A = 3 , B = 5 , C = 0 , D = 2

∵ The period = 2π/B

∴ The period = 2π/5

∵ The frequency = 1/period

∴ The frequency = 1/(2π/5) ⇒ multiply up and down by 5

∴ The frequency = 5/2π

The frequency of the function f(x) = 3cos(5x) + 2 is 5/2π, represented as 5 cycles per unit interval on the x-axis.

The frequency of the function f(x) = 3cos(5x) + 2 is determined by the coefficient of x inside the cosine function. In this case, the coefficient is 5, which represents 5 cycles per unit interval on the x-axis. The standard form for a cosine function's frequency is given when the function is written as cos(2πft), with f representing the frequency. To match this form, we can rewrite the function as cos(2π(5/2π)x), making it clear that f = 5/2π cycles per unit interval, which is the frequency.

In simplest fraction form, the frequency of the function f(x) is 5/2π.

Solve the system using elimination. Write the solution as an ordered pair. (1 point) SHOW YOUR WORK FOR FULL CREDIT! (2 points)

13x + y = 15
-9x - 3y = -15

Answers

Answer: (1,2)

Step-by-step explanation:

You must:

- Multiply the first equation by 3.

- Add both equations.

- Solve for the variable left. In this case will be x.

Then:

[tex]\left \{ {{39x +3y = 45} \atop {-9x - 3y = -15}} \right.\\------\\ 30x=30\\x=1[/tex]

Substitute x=1 into any of the original equtions and solve for y:

[tex]13(1)+y=15\\y=2[/tex]

The solution is: (1,2)

Answer:

The solution of the system of equation is (1 , 2)

Step-by-step explanation:

The system of equation is:

* 13x + y = 15 ⇒ (1)

* -9x - 3y = -15 ⇒ (2)

- By using elimination ⇒ we must make on of the

 two variables in the two equations has the same value

 with different sign

- So we will multiply equation (1) by 3 to eliminate y

∴ 3(13x) + 3(y) = 3(15)

∴ 39x + 3y = 45 ⇒ (3)

- Now add (2) and (3)

∴ 39x + -9x = 45 + -15

∴ 30x = 30 ⇒ ÷ 30 both sides

∴ x = 1

- Substitute the value of x in equation (1) or (2)

- Lets use (1)

∴ 13(1) + y = 15

∴ 13 + y = 15 ⇒ subtract 13 from both sides

∴ y = 15 - 13  

∴ y = 2

∴ The solution of the system of equation is (1 , 2)

How many parameters are needed to fully describe any normal distribution?

Answers

Answer:

There are only two parameters needed to define any normal distribution curve.

Step-by-step explanation:

The two parameters are mean and standard deviation. This will allow us to see how far from the mean the curve exists and where the center is.

The students in Miss Collins class used a survey or’s measuring device to find the angle from their location to the top of a building they also measured the distance from the bottom of the building. the diagram shows the angle measure in the distance.
To the nearest foot, what is the height of the building?
A. 105ft
B. 116ft
C. 32ft
D. 54ft
(Image attached)

Answers

Answer:

A

Step-by-step explanation:

We can use trigonometric ratios to solve this.

With respect to the angle given, the building's height is the side that is "opposite".

Also, the given length of 63 feet is the "adjacent" side with respect to the angle given.

Which trigonometric ratio relates "opposite to adjacent" side?

It is TAN.

Now, let's write the ratio and solve for the height of the building (let h be height of the building). We have:

[tex]Tan(\theta)=\frac{Opposite}{Adjacent}\\Tan(59)=\frac{h}{63}\\h=Tan(59)*63\\h=104.85[/tex]

Rounding this, we get h = 105 feet, correct answer A

Answer:

The height of the building = 105 feet ⇒ answer (A)

Step-by-step explanation:

* To find the height of the building use the trigonometry functions

- Lets consider the height (h) of the building as a side of right angle triangle

 and the other side is the distance from the bottom of the building

- Now we have right angle triangle one of its acute angle is 59°

- The length of one leg of the right angle = 63 feet

- We have the adjacent side of angle 59°

- we need to find the opposite side of angle (h)

∴ Lets use the function tan to find h

∵ tanФ = opposite to Ф/adjacent to Ф

∵ Ф = 59°

∵ The length of the side adjacent to Ф = 63 feet

∴ tan59 = h/63 ⇒ by using cross multiplication

∴ h = 63 × tan 59 = 104.849 ≅ 105 feet

∴ The height of the building = 105 feet answer (A)

Which transformation shows a translation of 3 units to the right?

A) B) C) D)

Answers

a is the answer I think

Pl help me
WILL GIVE BRAINLIEST

Answers

Answer:

up

Step-by-step explanation:

Since this is written as y = function of x, it will open up or down

y = 3x^2 -5x -10

The coefficient of x^2 is positive so it will open up

Select the measures of the angles of a triangle whose angles have measures in the ratio 6:8:10

Answers

Answer:

45, 60, 75

Step-by-step explanation:

The ratio of the angles are 6:8:10

Multiply by x to get the angle measures

6x, 8x,10x

We know the sum of the angles is 180 for a triangle

6x+8x+10x = 180

Combine like terms

24x = 180

Divide each side by 24

24x/24 = 180/24

x =7.5

Each angle is

6x = 6(7.5) =45

8x = 8(7.5) =60

10x = 10*7.5 = 75

Final answer:

The measures of the angles of the given triangle are 54 degrees, 72 degrees, and 90 degrees.

Explanation:

To find the measures of the angles of a triangle whose angles have measures in the ratio 6:8:10, we can use the fact that the sum of the angles in a triangle is always 180 degrees. Since the ratio of the angles is 6:8:10, we can set up the equation 6x + 8x + 10x = 180, where x is a common factor. Solving this equation, we find that x = 9. Therefore, the measures of the angles are 6x = 54 degrees, 8x = 72 degrees, and 10x = 90 degrees.

Bryan is cooking cupcakes for a bake sale at his club. The recipe calls for 12 cups of flour. He has already put 3 cups of flour in the mixing bowl. How many more cups does he need to put in? Write an equation to represent this problem. Then solve.

Answers

Answer:

9 cups

Step-by-step explanation:

12-3 = 9

Answer:

Bryan needs 9 cups more.

Step-by-step explanation:

Bryan is cooking cupcakes for a bake sale at his club. The recipe calls for 12 cups of flour.

Number of cups of flour, he already has = 3

Lets say he needs x cups more.

So, equation forms = [tex]12=x+3[/tex]

=> [tex]12-3=x[/tex]

x = 9

Hence, Bryan needs 9 cups more.

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Show work!!!14 Which ratio is equivalent to 9/39 structure of simple past tense? What is the volume of an cylinder shown below with radius of 11 and height of 12 Which is an example of internal conflict: A. A trial lawyer tries to overcome his nervousness B. A lone traveler struggles to survive in the wilderness C. A dog and cat must learn to work togetherD. A family tries to escape from a raging hurricane The idea of self-government is in the first words of the Constitution. What are these words? When in the course Congress shall make no law We the People We hold these truths Which of the following statements about xylem is incorrect? A) It conducts material from root tips to leaves.B) The conducting cells are part of the apoplast.C) It transports mainly sugars and amino acids.D) It typically has a lower water potential than is found in soil. E) No energy input is required for transport. A _____ is a particle with a positive charge and the mass of an electron. please help! ASAPPP! Please help with function homework. George's dog has a mass of 6 kg what is the mass of the dog in grams Acupuncture: Help or Hype? Tracy Wilson 1 Acupuncture is one of the oldest, most commonly used medical procedures in the world. Originating in China more than 2,000 years ago, acupuncture began to become better known in the United States in 1971, when New York Times reporter James Reston wrote about how doctors in China used needles to ease his pain after surgery. 2 The term acupuncture describes a family of procedures involving stimulation of anatomical points on the body by a variety of techniques. American practices of acupuncture incorporate medical traditions from China, Japan, Korea, and other Eastern countries. The acupuncture technique that has been most studied scientifically involves penetrating the skin with thin, solid, metallic needles that are manipulated by the hands or by electrical stimulation. 3 Acupuncture needles are metallic, solid, and hair-thin. People experience acupuncture differently, but most feel no or minimal pain as the needles are inserted. Some people are energized by treatment, while others feel relaxed. Improper needle placement, movement of the patient, or a defect in the needle can cause soreness and pain during treatment. This is why it is important to seek treatment from a qualified acupuncture practitioner. 4 The U.S. Food and Drug Administration (FDA) approved acupuncture needles for use by licensed practitioners in 1996. The FDA requires that sterile, nontoxic needles be used and that they be labeled for single use by qualified practitioners only. 5 Relatively few complications from the use of acupuncture have been reported to the FDA in light of the millions of people treated each year and the number of acupuncture needles used. Still, complications have resulted from inadequate sterilization of needles and from improper delivery of treatments. Practitioners should use a new set of disposable needles taken from a sealed package for each patient and should swab treatment sites with alcohol or another disinfectant before inserting needles. When not delivered properly, acupuncture can cause serious adverse effects, including infections and punctured organs. 6 Acupuncture is one of the key components of the system of traditional Chinese medicine (TCM). In the TCM system of medicine, the body is seen as a delicate balance of two opposing and inseparable forces: yin and yang. Yin represents the cold, slow, or passive principle, while yang represents the hot, excited, or active principle. Among the major assumptions in TCM are that health is achieved by maintaining the body in a "balanced state" and that disease is due to an internal imbalance of yin and yang. This imbalance leads to blockage in the flow of qi (vital energy) along pathways known as meridians. It is believed that there are 12 main meridians and 8 secondary meridians and that there are more than 2,000 acupuncture points on the human body that connect with them. 7 Preclinical studies have documented acupuncture's effects, but they have not been able to fully explain how acupuncture works within the framework of the Western system of medicine that is commonly practiced in the United States. It is proposed that acupuncture produces its effects through regulating the nervous system, thus aiding the activity of pain-killing biochemicals such as endorphins and immune system cells at specific sites in the body. In addition, studies have shown that acupuncture may alter brain chemistry by changing the release of neurotransmitters and neurohormones and, thus, affecting the parts of the central nervous system related to sensation and involuntary body functions, such as immune reactions and processes that regulate a person's blood pressure, blood flow, and body temperature. Which country is NOT LIKELY to be included in a research report about the origins of acupuncture? A)Brazil B)China C)Japan D)Korea A city is planning to replace one of its water storage tanks with a larger one. The city's old tank is a circular night with a radius of 12 feet and a volume of 10,000 cubic feet. The new tank is a right circular cylinder with a radius of 15 feet and the same height as the old tank. What is the maximum number of cubic feet of water in the new storage tank will hold? Steam Workshop Downloader