The total energy, E, in joules of a metal cylinder with an angular velocity of w radians per second
and a height of h meters above the ground is given by the equation above. The height and
angular velocity are independent. Which of the following expressions is the energy due to the
angular velocity?

The Total Energy, E, In Joules Of A Metal Cylinder With An Angular Velocity Of W Radians Per Secondand

Answers

Answer 1

The energy due to the angular velocity is given by the expression: [tex]E = 1/2 * I * w^2[/tex], where I is the moment of inertia of the cylinder.

Inertia: What is it?

Everyone uses inertia, although few people are familiar with it. Additionally, it touches on every thing or person at some time. It is also a state of repose or inaction.

Inertia at rest: Until and unless an external force greater than the inertial force is applied to the object, the inertia (opposing force) existent inside the item keeps the object at rest. A body in motion maintains its motion until and until an outside force (such brakes, friction, etc.) is applied to it.

To know more about inertia visit:

https://brainly.com/question/3268780

#SPJ1


Related Questions

James has $20 in his wallet and makes $10 per hour. Kelly has $50 in her wallet but only makes $8 per hour.

How many hours of work will it take for these two people to have the same amount of money?

Answers

Answer:

At 15 hours of work they will be equal.

Step-by-step explanation:

James: y = 10x + 20

Kelly: y = 8X + 50

Set them equal to each other and solve

10x + 20 = 8x + 50  Subtract 8x from both sides of the equation

2x + 20 = 50  Subtract 20 from both sides of the equation

2x = 30  Divide both sides by 2

x =15

suppose that fanf g are continuous functions,
12_(^28 f(x)dx=19, and 12 (^28 g(x)dx =35.
Find
12_ f^28 [kg(x)-2f(x)] dx, where the coefficient
k=7
those are intergral symbols with numbers on
top and bottom. please show work. thanks

Answers

The required result based on given continuous functions is: 207. See the explanation for same below.

What are continuous functions?


A continuous function in mathematics is one in which a continuous variation (that is, a change without a jump) of the argument causes a continuous variation of the function's value.

What is the calculation for the above solution?

Since G and F are continuous functions,

[tex]\int_{12}^{28}) \, f(x) dx[/tex] = 19

[tex]\int_{12}^{28}) \, f(x) dx[/tex] = 35

Therefore,

[tex]\int_{12}^{28}) \, [K g(x) - 2 f(x)] dx[/tex]

= K [tex]\int_{12}^{28}) \, g(x) dx -2 \int_{12}^{28}) \, f(x) dx[/tex]

So, given that K = 7, we have

7 x 35 - 2 x 19
= 245 - 38
= 207

Learn more about continuous functions at;
https://brainly.com/question/18102431
#SPJ1

paulette spent 45.50 on concert tickets before fees. there was a service fee of 6% added on to her purchase.

Answers

The original price of concert tickets before the addition of service fee is 42.93

Percentage

Amount spent on tickets including service fee = 45.50Percentage if service fee = 6%Original cost before service fee = x

45.50 = x + (6% of x)

45.50 = x + (0.06 × x)

45.50 = x + 0.06x

45.50 = 1.06x

x = 45.50/1.06

x = 42.9245283018867

Approximately,

x = 42.93

Learn more about percentage:

https://brainly.com/question/843074

#SPJ1

Suppose f(x) and g(x) are differentiable functions satisfying f(1) = f′(1) = 2. Let
h(x) = g(f(x)) − g(2x). Determine whether h′(1) > 1

Answers

Answer:

1777777777888876332222233

A restaurant hands out a scratch-off game ticket with prizes being worth
purchases at the restaurant. The back of the ticket lists the odds of winning
each dollar value: 0.4 for $10, 0.2 for $25, 0.01 for $30, and 0.004 for $75.
What are the odds that the ticket is worth at least $25?

Answers

Using the probability concept, the odds that the ticket is worth at least $25 are of 1:3.67.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

Considering the probability, the odd is given by:

o = probability:(1 - probability)

From the given table, the probability that the ticket is worth at least $25 is:

p = 0.2 + 0.01 + 0.004 = 0.214.

Hence the odd is:

o = 0.214/(1 - 0.214) = 0.214/0.786 = 1:3.67.

More can be learned about odds and probability at https://brainly.com/question/16363997

#SPJ1

Using the drawing what is the vertex of angle 4?

Answers

Answer: A

Step-by-step explanation:

How do i find the slope of these points? (−4, 3) and (2, 9)

Answers

Answer:

Divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.

Step-by-step explanation:

Answer:

The value of the slope b/n these two pts. will be 1.

Step-by-step explanation:

Greetings !

For finding slope from two points of a line (x₁, y₁) and (x₂, y₂), we use the formula (y₂ - y₁) / (x₂ - x₁).

Thus, m=(y₂ - y₁) / (x₂ - x₁)

m=(9-3)/(2-(-4))m=6/6m=1.

define cultural identity in your own words

Answers

Cultural identity component of an individual which makes him identifiable with a given group. For example, British Asian is a cultural identity.

What is the Meaning of Cultural Identity?

Cultural identity can be described as a component of an individual which makes him identifiable with a given group that share the same characteristics.

Examples of cultural identities may include the following:

ReligionEthnic backgroundTraditionNationalityFood

I can state that I am a British Asian. British Asian is my cultural identity.

Learn more about cultural identity on:

https://brainly.com/question/16955649

#SPJ1

6) Ron bought a car 8 years ago for $15,694. If the rate of depreciation is 4.75% per year, what is the value of
Ron's car now? Round answer to nearest cent.
O a.) $10,642.94
Ob.) $10,332.94
Oc.) $10,632.94
Od.) $10,662.94

Answers

It will be Od cause 10,662,94 is closer to and the biggest number you working with

Find the exact solutions of x2 − 3x − 5 = 0 using the quadratic formula. Show all work! 75 points please help!!!!!

Answers

Answer:

[tex]x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}[/tex]

Step-by-step explanation:

Quadratic Formula

[tex]x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\quad\textsf{when }\:ax^2+bx+c=0[/tex]

Given quadratic equation:

[tex]x^2-3x-5=0[/tex]

Define the variables:

[tex]\implies a=1, \quad b=-3, \quad c=-5[/tex]

Substitute the defined variables into the quadratic formula and solve for x:

[tex]\implies x=\dfrac{-(-3) \pm \sqrt{(-3)^2-4(1)(-5)}}{2(1)}[/tex]

[tex]\implies x=\dfrac{3 \pm \sqrt{9+20}}{2}[/tex]

[tex]\implies x=\dfrac{3 \pm \sqrt{29}}{2}[/tex]

Therefore, the exact solutions to the given quadratic equation are:

[tex]x=\dfrac{3+ \sqrt{29}}{2}, \quad \dfrac{3- \sqrt{29}}{2}[/tex]

Learn more about the quadratic formula here:

https://brainly.com/question/27868610

https://brainly.com/question/27750885

Answer:

[tex]\boxed {\frac{3+\sqrt{29}}{2}} \boxed{\frac{3-\sqrt{29}}{2}}[/tex]

Step-by-step explanation:

Quadratic Formula :

[tex]\boxed {\frac{-b \pm \sqrt{b^{2}-4ac}}{2a}}[/tex]

We are given the equation x² - 3x - 5 = 0.

Here,

a = 1b = -3c = -5

Solving :

3 ± √3² - 4(1)(-5) / 2(1)3 ± √29 / 2

Hence, the solutions are :

[tex]\boxed {\frac{3+\sqrt{29}}{2}} \boxed{\frac{3-\sqrt{29}}{2}}[/tex]

How many proportional relationships are shown in the coordinate plane below/

Answers

Answer:

I wish I could I didnt do good with this in math

What is the solution to the following system of equations?
x-3y=6
2x + 2y = 4
(-1,3)
(3,-1)
(1, -3)
(-3,1)

Answers

Answer:

  (b)  (3,-1)

Step-by-step explanation:

One can determine the correct answer by checking to see if it satisfies the equations.

Checking

The first equation can be rewritten to ...

  x = 6 +3y . . . . . . . add 3y to both sides

This makes it easier to check answer choices:

  a) -1 = 6 +3(3) . . . . no

  b) 3 = 6 +3(-1) . . . . yes . . . . . (3, -1) is the solution

  c) 1 = 6 +3(-3) . . . . no

  d) -3 = 6 +3(1) . . . . no

__

Additional comment

We can further convince ourselves this is the correct choice by seeing if it satisfies the second equation:

  2x +2y = 4 . . . for (x, y) = (3, -1)

  2(3) +2(-1) = 4 . . . . yes


Zaidah plans a raised flower bed 2 ft high by 15 ft wide by 24 ft long. The mulch, soll, and peat mixture used to fill the raised bed costs $12.75 per cubic yard. What is the total cost (in dollars) of the
Ingredients used to fill the raised garden?

Answers

[tex] {\qquad\qquad\huge\underline{{\sf Answer}}} [/tex]

Let's get started ~

[tex]\qquad \sf  \dashrightarrow \: volume = length \sdot width \sdot height[/tex]

[tex]\qquad \sf  \dashrightarrow \: v = (24) \sdot(15) \sdot(2)[/tex]

[tex]\qquad \sf  \dashrightarrow \: v = 720 \: \: ft {}^{3} [/tex]

now, we know :

[tex]\qquad \sf  \dashrightarrow \: 1 \: \: yard {}^{3} = 27 \: \: ft {}^{3} [/tex]

[tex]\qquad \sf  \dashrightarrow \: 1 \: \: ft {}^{3} = \cfrac{1}{27} \: \: yard {}^{3} [/tex]

[tex]\qquad \sf  \dashrightarrow \: 720 \: \: ft {}^{3} = \cfrac{1}{27} \times 720 \: \: yard {}^{3} [/tex]

[tex]\qquad \sf  \approx\: 26.67 \: \: yard {}^{3} [/tex]

now, total cost of ingredients used is :

[tex]\qquad \sf  \dashrightarrow \: 26.67 \times 12.75[/tex]

[tex]\qquad \sf  \dashrightarrow \: 340.04[/tex]

so, total cost is $ 340.04

claire and martin are trying to determine the length of a slug. Claire has a mesuring stick whose markings are 1 cm apart, and Martin has a measuring stick whose markings are 0.1cm apart.

Answers

Claire's measuring stick would make a more precise measurement

How to determine the precise measurement?

The given parameters are:

Claire = 1 cm

Martin = 0.1 cm

The 0.1 cm marking would make a more accurate measurement.

This is so because the length of a slug would most likely be in decimal centimeters

However, this doesn't translate to a precise measurement.

Hence, Claire's measuring stick would make a more precise measurement

Read more about accuracy and precision at:

https://brainly.com/question/15274003

#SPJ1

To support the tree a guy wire 8.1 m long is attached to the trunk and then secured in the ground find the height of the leafty part of the tree to the nearest tenth

Answers

The height of the leafy part will be 6m.

How to calculate the height?

Other part of the question:

At the same time, a vertical pole 3m high vast s shadow 4m long.

Based on the information given, the height will be:

h/8 = 3/4

h = (3 × 8)/4

h = 6

Therefore, the height is 6m.

Learn more about height on:

brainly.com/question/983412

#SPJ1

Four students are simplifying the expression 5x(–3 – 7x).

Which student’s work is correct?

5x(–3 – 7x)
(5x)(–3) – 7x
–15x –7x
5x(–3 – 7x)
(5x)(–3) – (5x)(7x)
–15 – 35x
5x(–3 – 7x)
–3 + 5x – 7x
–3 – 2x
5x(–3 – 7x)
(5x)(–3) + (5x)(–7x)
–15x – 35x2

Answers

Answer:

So the questions isn't clear enough, but I could tell u that the nearest answer is the last answer, but without the multiplied 2

It's _15x_35xsquared

Answer:

5x(–3 – 7x)

(5x)(–3) + (5x)(–7x)

–15x – 35x2

Step-by-step explanation:

D

Find the sum of the geometric series given a1 = 5, r = 3, n = 12.

Answers

The sum of the geometric series is 1328600

How to determine the sum?

The given parameters are:

a1 = 5

r = 3

n = 12

The sum of the terms is:

[tex]S_n = \frac{a(1 - r^n)}{1 - r}[/tex]

This gives

[tex]S_n = \frac{5 * (1 - 3^{12})}{1 - 3}[/tex]

Evaluate the difference

[tex]S_n = \frac{5 * (1 - 531441)}{-2}[/tex]

This gives

[tex]S_n = \frac{5 * - 531440}{-2}[/tex]

Evaluate

[tex]S_n = 1328600[/tex]

Hence, the sum of the geometric series is 1328600

Read more about series at:

https://brainly.com/question/4617980

#SPJ1

A solid right square prism is cut into 5 equal pieces parallel to its bases. The volume of each piece is V = 1/5s2h.Solve the formula for s. help asap

Answers

The solution of the formula for s is:

[tex]s = \sqrt{\frac{5V}{h}}[/tex]

What is the symbolic equation?

The equation is:

[tex]V = \frac{1}{5}s^2h[/tex]

To solve for s, we isolate it, hence:

[tex]s^2 = \frac{5V}{h}[/tex]

[tex]s = \sqrt{\frac{5V}{h}}[/tex]

More can be learned about the solution of symbolic equations at https://brainly.com/question/1316209

#SPJ1

Find the coordinates of the vertices of the triangle if it’s rotated 270° counterclockwise.

Answers

If these coordinates are rotated 270° counterclockwise, the resulting coordinates will be;

X' = (3, -1)

Y' = (2, -2)

Z' = (-1, -3)

Rotation of coordinates

If the coordinates (x, y) is rotated 270° counterclockwise, the resulting coordinate point will be;

(x, y) - > (y, -x)

From the given triangles, the coordinate points are expressed as

X = (1, 3)

Y = (2, 2)

Z = (3, -1)

If these coordinates are rotated 270° counterclockwise, the resulting coordinates will be;

X' = (3, -1)

Y' = (2, -2)

Z' = (-1, -3)

Learn more on rotation here: https://brainly.com/question/26249005

#SPJ1

The total area of a picture and its frame can be represented by ^l + 2f h^w + 2f h, where l and w represent the length and width of the picture, respectively, and f represents the thickness of the frame.



a. Sketch a diagram to represent this scenario.



b. What binomial multiplication represents the area of an 8" # 12" picture and its frame?



c. Multiply the binomials from b., and combine like terms to simplify.



d. What is the total area of an 8" # 12" picture and its frame if the frame is 1.5" thick?

Answers

The answers to the question are

b. (l + 2f) (w + 2f)

c. f + 4, f + 6

d.  52.25

a. The diagram is an attachment.

B. How to solve for the binomial multiplication

The equation says

(l + 2f) (w + 2f)

We have the lengths of w and l as 8 and 12 respectively. Hence we have

(8 + 2f) (12 + 2f) as the area

c. (8 + 2f) (12 + 2f)

= 96 + 16f + 24f + 4f²

= 4f² + 40 f + 96

We have to factorize this using the quadratic equation calculator

f + 4, f + 6

= f = -4 and f = -6

d. If it is 1.25 thick we would have

1.25 x 2 = 2.5

12 - 2.5 = 9.5

8 - 2.5 = 5.5

Area = l * w

= 5.5 * 9.5

= 52.25

Read mire on binomial multiplication here:

https://brainly.com/question/20353197

#SPJ1

Please answer the question below . Help is greatly appreciated!

Answers

Using proportions, it is found that 40 ml of water have to be added to make the ratio of oil to water of 1:3.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The jar contains 100 ml of oil and water in the ratio 1:4, hence:

The amount of oil is: 1/5 x 100 = 20 ml.The amount of water is: 4/5 x 100 = 80 ml.

Oil was added to make the ratio 1/2, hence:

[tex]\frac{20 + x}{100 + x} = \frac{1}[3}[/tex]

3(20 + x) = 100 + x

60 + 3x = 100 + x

x = 20.

Then there are 40 ml of oil and 80 ml of water, for a total of 120 ml. Now we want a ratio of 1:3, that is, 3/4 of the mixture being water, hence:

[tex]\frac{80 + x}{120 + x} = \frac{3}{4}[/tex]

4(80 + x) = 3(120 + x)

320 + 4x = 360 + 3x

x = 40

40 ml of water have to be added to make the ratio of oil to water of 1:3.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

There are some 1-dollar bills, some 5-dollar bills, and a 20-dollar bill in an envelope. The number of 1-dollar bills is five times the number of the 5-dollar bills. We randomly pull a bill from the envelope. How many 1-dollar bills are in this envelope if the expected value of the bill pulled is $2.00?

Answers

Answer:

the number of 1 dollars bills was 5 si make 1 more 5 dollars so 8n total it is 10 dollars.

find the slope of this line

Answers

Answer:

2

Step-by-step explanation:

Select two points that the red line goes through like (0,-10) and (2,-6).  If I start at the bottom left of the red line, I can see that I am moving to the right and up.  That means that the slope will be positive.  As my x is increasing so is my y.  Starting at point (0,-10) 2 space, but each space counts as 2, so I really move up 4.  Then I check to see how much I moved right.  It is only one space, but again, I am counting by 2s, so I really moved 2 units to the right.  

The fraction would be 4/2 which just equals 2/1  or 2.  

where is the center of the circle and the radius is how many units?​

Answers

Answer:

8,9,5

Step-by-step explanation:

Nicole sold 15 tickets to the school play and Andrew sold 24 tickets. what is the ratio of the number of tickets Nicole sold to the number of tickets Andrew sold

Answers

Answer:

5:8

Step-by-step explanation:

Nichole sold 15 while Andrew sold 24, so the ratio is 15:24. Simplify the ratio by dividing both sides by 3, and we’ll get 5:8.

What is the measure of angle A?


250

140

70

110

Answers

Using the angle of intersecting tangents theorem, the measure of angle A is: C. 70°

What is the Angle of Intersecting Tangents Theorem?

Based on the angle of intersecting tangents theorem, measure of angle A = 1/2(the positive difference of the intercepted arcs).

Measure of one of the intercepted arcs = 250°

The second intercepted arc = 360 - 250 = 110°

Positive difference of the intercepted arcs = 250 - 110 = 140°

Measure of angle A = 1/2(140)

Measure of angle A = 70°

Learn more about the angle of intersecting tangents theorem on:

https://brainly.com/question/1626547

#SPJ1

Answer:

the answer is 70. hope this helps <3

Step-by-step explanation:

60 POINTS PLEASE HELP NOW

Answers

The pre-image of the triangle has the following vertices: A'(x, y) = (4, 4/3), B'(x, y) = (- 2, 0) and C'(x, y) = (1, 3).

How to find the pre-image of the triangle

In this problem we must use a transformation rule known as dilation, a kind of rigid transformation, to derive the preimage of the triangle, whose formula is:

P'(x, y) = O(x, y) + k · [P(x, y) - O(x, y)]     (1)

Now we proceed to find the preimage of the triangle: O(x, y) = (0, 0), k = 2/3

Point A'

A'(x, y) = (0, 0) + (2/3) · [(6, 2) - (0, 0)]

A'(x, y) = (4, 4/3)

Point B'

B'(x, y) = (0, 0) + (2/3) · [(- 3, 0) - (0, 0)]

B'(x, y) = (- 2, 0)

Point C'

C'(x, y) = (0, 0) + (2/3) · [(1.5, 4.5) - (0, 0)]

C'(x, y) = (1, 3)

The pre-image of the triangle has the following vertices: A'(x, y) = (4, 4/3), B'(x, y) = (- 2, 0) and C'(x, y) = (1, 3).

To learn more on transformation rules: https://brainly.com/question/9201867

#SPJ1

1376x13 please solve this equation and show work

Answers

The value of 1376 * 13 is 17888

How to solve the expression?

The expression is given as:

1376 * 13

Express 1376 as 1300 + 76

(1300 + 76) * 13

Expand

1300 * 13 + 76 * 13

Evaluate the product

16900 + 988

Evaluate the sum

17888

Hence, the value of 1376 * 13 is 17888

Read more about products at:

https://brainly.com/question/10873737

#SPJ1

Suppose you have $1500 in your savings account at the end of a certain period of time. You invested $1000 at a 2.71% simple annual interest rate. How long, in years, was your money invested? State your result to the nearest hundredth of a year.

Answers

The time taken in years for money invested to accumulate to $1500 is 18.45 years

Simple interestPrincipal = $1000Interest rate = 2.71% = 0.0271t = ?

Simple interest = Total savings - principal

= 1500 - 1000

= $500

Simple interest = principal × rate × time

500 = 1000 × 0.0271 × t

500 = 27.1 × t

500 = 27.1t

t = 18.4501845018450

Approximately,

t = 18.45 years

Learn more about simple interest:

https://brainly.com/question/20690803

#SPJ1

Find the distance between points H(8, 2) and K(6, 10). Round your answer to the nearest tenth

Answers

Step-by-step explanation:

when you mark such points on a coordinate grid, and mark also the coordinate differences in x and y direction as soft lines, you notice that these coordinate difference lines and the direct connection between the 2 points create a right-angled triangle.

so, Pythagoras applies :

c² = a² + b²

with c being the Hypotenuse (the baseline opposite of the 90° angle, which is the direct connection between the 2 points). a and b are the legs (coordinate differences).

so,

distance² = (8 - 6)² + (2 - 10)² = 2² + (-8)² = 4 + 64 = 68

distance = sqrt(68) = 8.246211251... ≈ 8.2

Other Questions
find the value of X. -1. x 5/6 = 1 and 4/5 -2. x 2 and 1/10 = 1 and 2/3ILL GIVE 40 POINTS JUST HELP PLEASE 20 pairs of atletics shoes and 10 pair of casual shoes are 750. how much is each shoe What was the outcome of the boxer rebellion the court found the soldier guilty on the basis of the womans remarkable memory for dates and details that apparently eliminated all other possible fathers what are the possible genotypes for these three people Assigning Responsibility These maps show ancient settlements in India and China. Which statement is true about the location of most settlements?They were located near oceans to provide good drinking water for the population.They were located near deserts for the protection from invaders.They were located near rivers and fertile floodplains to allow successful planting.They were located near mountains for access to animals to hunt. What are the 5 characteristics of modern art? The 2010 Nobel Prize in Physics was awarded for the discovery of graphene, a two-dimensional form of carbon in which the atoms form a two-dimensional crystal-lattice sheet only one atom thick.A.) Predict the molar specific heat of graphene. Give your answer as a multiple of "R" (R=8.31 J/mol*K) KXIf the price of gasoline increased by 0.3% per month, whichequation models the future cost of gasoline?XAy=1.19(z)1.03Ix BBy=1.19(z) 1.003C y = 1.19(1.03)"Dy = 1.19(1.003) The physical state(s) present when a substance is melting is (are) a) solid. B) liquid. C) gas_ D) solid + liquid. E) liquid gas: Three moles of an ideal gas are taken around the cycle abc shown in the figure (Figure 1) . For this gas, Cp=29.1 J/(mol?K). Process ac is at constant pressure, process ba is at constant volume, and process cb is adiabatic. The temperatures of the gas in states a, c, and b are Ta=300K, Tc= 492 K, and Tb= 600 K.Calculate the total work W for the cycle what is the direct answer to this equation?13 + n-26 < 38 Which of the following attributes were not common of Indus Valley stamp seals? Compare the interview "On the Front Lines with Thurgood Marshall" withThurgood Marshall*.the informational piece "Equal Justice Under Law:What key information is expanded on in theinterview that is not deeply explored in the informational piece?O The interview includes Marshall's ownstruggle to get to ielp law school which fueled his sense of injustice. The interview provides a more detailed account of the SupremeCourt's opinion on Brown v. Board of Education.O The interview gives more specific examples of how segregation in education is inherently unequaland unfair. The interview mentioned more about the opposition Marshall faced in the African American community. What are the salient point in the article how money became the measure of everything? Critical Thinking Making Comparisons duck(a) When might absolute location be of interestto a geographer? (b) When might relative locationbe more useful? Who was the US sided with in ww2? Many whole families died when the plague hit Europe. Since the bite of a flea was the main transmission of plague, how did it MOST likely spread to the rest of the family? A. Every person would have to be bitten by an infected flea. B. The plague was passed through contaminated water and sewage. C. If the family were in close contact with the sick persons boils, they could get the bacteria. D. If the plague had spread to the lungs and a person coughed, it could spread to others. what is the gravitational force exerted on uranus by neptune, at closest approach? Which economic activity is part of a governments fiscal policy?A. Raising tax ratesB. Printing more moneyC. Calculating inflationD. Regulating corporations