Proof Practice

Given: ∠ PQR and ∠ XYZ are complementary
m ∠ XYZ = 10 degrees

Prove: m ∠ PQR = 80 degrees

5 statements and Reasons needed

Answers

Answer 1

Answer:

1. Given (angle PQR and angle XYZ are complimentary)

2. Definition of complimentary angles (Complimentary means they are added to 90 degrees)

3. Definition of Complimentary angles (Complimentary angles only include two angles)

4. Subtraction postulate (90 degrees - 10 degrees= 80 degrees which proves they are complimentary)

5. Complimentary angles theorem (angle XYZ is 80 degrees)

Sorry if that's too vague, but I really hope this helps you! I bet someone elses answer would clear it up better, so more research or finding a different answer would probably help, just to confirm. I tried to explain as much as I could, I'm not good at teaching what I know.


Related Questions

The diameter of a circle is 16 kilometers. What is the angle measure of an arc bounding a sector with area 8pi square kilometers?

Answers

The angle that defines the arc is x = pi/4.

How to get the angle?

For a circle with a radius R, the area of an arc defined by an angle x is:

A = (x/2)*R^2

In this case, the diameter is 16km, then the radius is given by:

R =16km/2 = 8km

Then the area is:

A = (x/2)*(8 km)^2

And this must be equal to 8*pi km^2

Then we can solve the equation:

(x/2)*(8 km)^2 = 8*pi km^2

(x/2)*64 = 8*pi

x = 2*8*pi/64 = pi/4

That is the measure of the angle.

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PLEASE HELP ME WHAT IS. THIS X^2+5x+4

Answers

Answer: (x+1)(x+4) is the solution

Step-by-step explanation:

Use the sum-product pattern

Common factor from the two pairs

Rewrite in factored form

Answer:

(x+1)(x+4)

Step-by-step explanation:

x²+5x+4

x²+4x+x+4

x(x+4)+1(x+4)

(x+1)(x+4)

Which order pair can be plotted together with these four points, so that the resulting graph still represents a function.

Answers

The ordered pair that can be plotted together with these four points is

(0, 3).

Option C is the correct answer.

What is a function?

function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

The following coordinates are from the graph.

(3, -1), (2, 3), ), (-4, 2), and (-2, -3)

We know that,

A function can have many-to-one but not one-to-many.

So,

We can not have (-2, 0), (-2, 3). and (3, 0) because we already have (-2, 3) and (3, -1).

This is an indication of a one-to-many function that is not possible.

(0, 3) is possible.

Thus,

The ordered pair that can be plotted together with these four points is

(0, 3).

Option C is the correct answer.

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Find the equation of the linear function represented by the table below in slope-intercept form.

Answers

Answer:

y = 10x - 8

Step-by-step explanation:

The slope is "m", or how much the y-value changes on a line when the x-value changes by one.

The y-intercept is the y value of the line when it is intersecting the y-axis, or when the x-value is 0.

To find the slope, take 2 points from the graph and plug into the slope formula:

[tex]\frac{y_2-y_1}{x_2-x\\_1}[/tex]

I'll use (0, -8) and (1,2).

Plug into the formula.

[tex]\frac{2--8}{1-0}[/tex]

[tex]\frac{10}{1}[/tex]

10

Slope = 10

To find the y-intercept, look at the table. What is the y-value when the x-value is equal to 0?

-8

y-intercept: -8

Slope-Intercept form:

y = mx + b

m: slope

b: y-intercept

y, x: leave as variables

y = 10x - 8

2v²+8v=-7 i need 5 points to graph range solutions

Answers

Given the quadratic equation below

[tex]\begin{gathered} 2v^2+8v=-7 \\ \Rightarrow2v^2+8v+7=0 \\ \therefore y=2v^2+8v+7 \end{gathered}[/tex]

Note: y is function defined by v ( independent variable)

To plot the graph of the function above, we will take a range of values for v, i.e

[tex]\begin{gathered} -2\le v\le2 \\ \text{The range}\Rightarrow-2,-1,0,1,2 \end{gathered}[/tex]

Given the range of values above, find the corresponding y-values . This can be done by substituting for v in the quadratic equation above

[tex]\begin{gathered} \text{when v=-2} \\ y=2(-2)^2+8(-2)+7=2(4)-16+7=8+7-16=15-16=-1 \end{gathered}[/tex][tex]\begin{gathered} \text{When v=-1} \\ y=2(-1)^2+8(-1)+7=2(1)-8+7=2+7-8=9-8=1 \end{gathered}[/tex][tex]\begin{gathered} \text{When v=0} \\ y=2(0)^2+8(0)+7=0+0+7=7 \end{gathered}[/tex][tex]\begin{gathered} \text{When v=1} \\ y=2(1)^2+8(1)+7=2+8+7=17 \end{gathered}[/tex][tex]\begin{gathered} \text{When v=2} \\ y=2(2)^2+8(2)+7=2(4)+16+7=8+16+7=31 \end{gathered}[/tex]

The table of values is shown below

Hence, the graph of the solution is shown below

Find the correct graph that represents the inequality for the sentence.Kevin always has $5 or more in his pocket.

Answers

ANSWER:

STEP-BY-STEP EXPLANATION:

By the statement Kevin always has $5 or more, which means that x can be 5 or all values greater than this. So the correct graph would be the first option:

50 POINTS SHOW WORK PLEASE!!!! LORAN is a long-range hyperbolic navigation system. Suppose two LORAN transmitters are located at the
coordinates (-100,0) and (100,0), where unit distance on the coordinate plane is measured in miles A receiver is located somewhere in the first quadrant. The receiver computes that the difference in the distances from the receiver to these transmitters is 180 miles.
What is the standard form of the hyperbola that the receiver sits on if the transmitters behave as foci of the hyperbola?

Answers

Answer:

x²/10000 + y²/1900 = 1

Step-by-step explanation:

coordinates (-100,0) and (100,0)  missing in Question

The center of the hyperbola  is  (0,0)  = (h, k)

c = the distance form the center to either focal point  = 100

c² =  100²   =  10000

The differences  from the receiver to the transmitters  =  2a

2a =  180

=> a   =  90

=> a² = 8100

b²  = c² - a²

b²  = 10000 - 8100

b²  =1900

(x - h)²/a²  + (y - k)²/b²  = 1

=> x²/10000 + y²/1900 = 1

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Which is the graph of the linear inequality y >-x-3

Answers

Answer:

The correct graph is shown below.

Hope this helps!

a semi-trailer is being packed with boxes that are 1 and 1/2 feet on each Edge the cargo space of the trailer is 28 ft long eight and a half feet wide and 9 and 1 over 6 feet high what is the maximum number of boxes that will fit inside the trailer

Answers

The maximum number of boxes that will fit inside the trailer according to the available volume is 540.

A semi-trailer is being packed with boxes. The side length of each box is 1.5 feet. The cargo space of the trailer is 28 feet in length, 8.5 feet wide and 9.167 feet high. Let the number of boxes that can fit according to the length, width, and height of the trailer be x, y, and z. The values of x, y, and z are the greatest whole numbers less than or equal to the ratio of the length, width, and height of the trailer to the length, width, and height of the box, respectively. The first inequality is x ≤ 28/1.5 ≤ 18.67, so the value of x is 18. The second inequality is y ≤ 8.5/1.5 ≤ 5.67, so the value of y is 5. The third inequality is z ≤ 9.167/1.5 ≤ 6.11, so the value of z is 6. The total number of boxes is the product of the three variables.

P = x*y*z = 18*5*6 = 540

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Order the numbers 7/4 , 1 .6, 1 5/8 , 1. 62 from least to greatest.

Answers

Answer:

1.6, 1.62, 1 5/8, 7/4

Step-by-step explanation:

First, let's turn the fractions into decimals:

For 7/4 you simply divide 7 by 4. Which equals 1.75.

Next for 1 5/8 we divide 5 by 8, which equals 0.625. + the 1 in 1 5/8. So we have 1.625.

Now, we arrange the decimals:

1.6, 1.62, 1.625, 1.75

But this is NOT the answer. We have to replace the decimals that WERE fractions back to the original, then order them from there:

1.6, 1.62, 1 5/8, 7/4.

This IS the answer.

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Answer:

the answer to this question is in the screenshot. pls mark this answer as the brainliest

Step-by-step explanation:

The random variable x has a normal distribution with standard deviation. It is known that the probability that x exceeds is. 90. Find the mean of the probability distribution.

Answers

The random variable x has a normal distribution with standard deviation. It is known that the probability that x exceeds is. 90. Therefore, mean  of the probability distribution is 133.09.

We are given that the random variable x has a normal distribution with standard deviation 21,i.e;

X ~ N( u, σ=21)

The Z probability is given by;

             Z = X- u/σ ~ (0,1)

Also, it is known that the probability that x exceeds 160 is 0.90 ,i.e;

P(X > 160) = 0.90

P( X-u/σ > 160-u /21  ) = 0.90

From the z% table we find that at value of x = -1.2816, the value of

P(X > 160) is 90%

which means;   160-u /21   = -1.2816

                          160 -  = 21*(-1.2816)

                             = 160 - 26.914 = 133.09

Therefore, mean  of the probability distribution is 133.09.

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(d) In 7 years Bernard will be twice as old as he was 8 years ago. How old is Bernard now?​

Answers

The present age of the Bernard is, 23.

What is age?

Given a date of birth, this free age calculator calculates age in terms of years, months, weeks, days, hours, minutes, and seconds.

Calculated using the population's arithmetic mean, average age. The median age is a factor that determines the population's average age.

As given, in 7 years Bernard will be twice as old as he was 8 years ago.

Let  the present age of Bernard = x

Bernard age after 7 years = x + 7.

Bernard age before 8 years = x - 8.

From the given information,

2(x - 8) = x + 7

2x - 16 = x + 7

2x - x = 16 + 7

x = 23

Therefore, the present age of Bernard is 23.

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Perform the following food service calculation.

Meat to be served: fish fillet
Number of guests: 84

How much fish is needed?


____lbs.

Answers

The amount of fish needed to be served is 294 lbs

How to determine the amount of fish needed?

From the question, we have the following parameters that can be used in our computation:

Meat to be served: 3.5 pounds fish fillet

Number of guests: 84

The amount of fish needed is calculated using the following equation

Amount of fish = Number of guests x Meat to be served

Substitute the known values in the above equation, so, we have the following representation

Amount of fish = 84 * 3.5

Evaluate the products

Amount of fish = 294

Hence, the amount needed is 294 pounds

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Possible question

Perform the following food service calculation.

Meat to be served: 3.5 pounds fish fillet

Number of guests: 84

How much fish is needed?

____lbs.

consider the following system of equations with the solution (1, 8). which system of equations would have the same solution?

Answers

Replacing x=1 in the equations to verify if the value of y is equal to 8, we have:

A.

y= 5*(1) + 3 = 8 (Multiplying and adding) (It is correct as the result for y is equal to 8)

y= 9*(1) - 1 = 8 (Multiplying and subtracting)(It is correct as the result for y is equal to 8)

B

y= 4*(1) + 2 = 6 ≠ 8 (Multiplying and adding) (It is not correct as the result for y is not equal to 8)

C

y= -2*(1) + 10 = 8 (Mulitplying and subtracting) (It is correct as the result for y is equal to 8)

y= 8*(1) + 1 = 9 ≠ 8 (Multiplying and adding) (It is not correct as the result for y is not equal to 8)

D.

y= 7*(1) -5 = 9 ≠ 8 (Multiplying and subtracting) (It is not correct as the result for y is not equal to 8)

The answer is the option A.

Which of the following isn’t a solution to cos 2x + cos x=0 on the interval [0,2pi)

Answers

Given:

There are given the equation:

[tex]cos2x+cosx=0[/tex]

Explanation:

According to the question:

We need to find the value where the given equation is satisfied.

So,

From the equation:

Put the 0 for x for the option first.

[tex]\begin{gathered} cos2x+cosx=0 \\ cos2(0)+cos(0)=0 \\ 1+1=0 \\ 2\ne0 \end{gathered}[/tex]

Then,

For the second option:

[tex]\begin{gathered} cos2x+cosx=0 \\ cos2(\frac{\pi}{3})+cos\frac{\pi}{3}\ne0 \end{gathered}[/tex]

For option third:

[tex]\begin{gathered} cos2x+cosx=0 \\ cos2(\pi)+cos(\pi)=0 \\ -1+2cos^2(\pi)+cos(\pi)=0 \\ -1+2(-1)^2-1=0 \\ -1+2-1=0 \\ 0=0 \end{gathered}[/tex]

Final answer:

Hence, the correct option C.

This was the answer I got but I am not sure it it is correct.

Answers

To find JL

We will first find the value of x

JK = KL

2(x+6) = 3x + 8

2x + 12 = 3x+ 8

subtract 2x from both-side of the equation

12 = 3x-2x + 8

12 = x+ 8

subtract 8 from both-side of the equation

12 - 8 = x+ 8 - 8

4 = x

x=4

JK = 2(x+ 6)

substitute x = 4 into the above

JK = 2(4+6)

JK=2(10)

JK=20

KL =3x+8

substitute x=4 into the above

KL = 3(4) + 8

KL = 12 + 8

KL=20

JL = JK + KL

= 20 + 20

= 40

JL = 40 units

At a certain school 6/7 are girls 3/5 brought their lunch what fraction of students are girls who brought their lunch today write your answer in its simplest form

Answers

18/35 fraction of students are girls who brought their lunch today.

What is fraction ?

A fraction is a mathematical concept that denotes a component of a whole or, more generally, any number of equal parts. A fraction, such as one-half, eight-fifths, and three-quarters, denotes the number of components of a specific size when used in conversational English.

Calculation

Let's say,

Total number of students over school = x

Number of girls = (6/7)x

Number of girls who brought their lunch = 3/5 of (6/7)x

⇒ 3/5(6/7)x

⇒ (18/35)x

Hence "18/35 fraction of students are girls who brought their lunch today".

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Andre has been offered an entry-level job. The company offered him $46,000 per year plus 3% of his total sales. Andre knows that the average pay for this job is $64,000, What would Andre's total sales need to be for his pay to be at least as high as the average pay for this job? (Your answer should be accurate to 2 decimal places.)

Answers

We know that:

- The company offered him $46,000 per year plus 3% of his total sales.

- the average pay for this job is $64,000

And we must find what would be the sales of Andre for his pay to be at least as high as the average pay for this job

To find it we can use a equation that represents the situation

We can use the next formula

[tex]\text{ average pay}=\text{ base salary}+\text{ 3\% of his total sales}[/tex]

Analyzing the given information we know that

- avergare pay = 64000

- base salary = 46000

- 3% of total sales = 3% * x = 0.03 * x (x represents the total sales)

Now, replacing the values in the formula

[tex]64000=46000+0.03x[/tex]

Since x represents the total sales we need to solve the equation for x

[tex]\begin{gathered} 64000=46000+0.03x \\ 64000-46000=0.03x \\ 18000=0.03x \\ \frac{18000}{0.03}=x \\ 600000=x \\ \Rightarrow x=600000 \end{gathered}[/tex]

ANSWER:

Andre should have $600,000 in his total sales for his pay to be at least as high as the average pay for this job

The volume of a box is 0.001 cubic Units. If the box is a cube, what is the length of one of its edges?

Answers

Answer:

0.1 units

Step-by-step explanation:

The volume formula of a cube is V = s^3
0.001 = s^3

s = 0.1

Brandon has a jar of quarters and dimes with a total value of $6.05. The number of quarters is 7 less than twice the number of dimes. How many quarters and how many dimesdoes Brandon have?Number of quarters -Number of dimes -

Answers

SOLUTION:

In this problem.

Let number of dimes = x, then number of quarters = 2x - 7.

The monetary values of quarters and dimes are;

[tex]\begin{gathered} 0.1x+0.25(2x-7)=6.05 \\ 0.1x+0.5x-1.75=6.05 \\ 0.6x=7.8 \\ x=13 \end{gathered}[/tex]

Thus, 2( 13) - 7 = 19.

Therefore, there are 13 dimes and 19 quarters.

Are 3/11 and 17/6 proportional

Answers

Answer:

Step-by-step explanation:

NO! Hope I helped.

How would I approach this problem? I’m not sure how to solve measurements

Answers

To identify the mass of the solute, subtract the total mass by the mass of the graduated cylinder.

Thus, we have the following:

[tex]20.6g-2.55g=18.05g[/tex]

To obtain the concentration of the solution, divide the obtained mass by the total volume and then simplify.

Thus, we have the following:

[tex]\frac{18.05g}{74.79mL}=\frac{1805g}{7479mL}\approx0.241g\cdot mL^{-1}[/tex]

help help help help help help help help help help help help help help help help help help helppppooppppppppp

Answers

From the given figure

The prism formed from 5 cubes long, 2 cubes wide, and 2 cubes height, then

Its length = 5 cubes

Its width = 2 cubes

Its height = 2 cubes

Since the side of each cube = 1/2 cm, then

Its length = 5 x 1/2 = 5/2 cm

Its width = 2 x 1/2 = 1 cm

Its height = 2 x 1/2 = 1 cm

The volume of the prism = length x width x height, then

[tex]\begin{gathered} V=\frac{5}{2}\times1\times1 \\ V=\frac{5}{2}cm^3 \end{gathered}[/tex]

The volume of the prism is 5/2 cubic cm

The answer is A

please help me its due soon and I don’t get it!!

Answers

Answer:

Step-by-step explanation:

These are tough,  so picture a line ( graph)  going  up the picture.

I'm attaching my graph

M = 10*R

each raffle ticket cost 10 bucks

I really need help on this!!!

Answers

Answer:

a.

linear? yes

why? because it is straight line

domain? 8

range? 8

b.

linear ? no

why? because it's curved

domain? -4

range?4

could you please help me out with a question

Answers

Circumference

Formula

C = 2*pi*r

Substitution

C = 2*(3.14)* (5)

Simplification

C = 31.4 m This is the Circumference

Area

Formula

A =pi*r^2

Substitution

A = 3.14*5^2

Simplification

A = 3.14*25

Result

Area = 785 m^2 This is the area

Given the regular decagon (10-sided polygon) pictured below, which statements are true? CHOSE 3 ANSWERS. EXPLAIN HOW YOU GOT THEM PLEASE!!
A:The polygon has 90° rotational symmetry.
B:The polygon has 144° rotational symmetry.
C:The polygon has point symmetry.
D:The polygon has 36° rotational symmetry.

Answers

The statements the polygon has 144° rotational symmetry, The polygon has point symmetry and The polygon has 36° rotational symmetry are true.

We have to find the symmetry.

A decagon is given as

Number of sides = 10

So rotational symmetry = [tex]\frac{360^{0} }{n}[/tex]

= [tex]\frac{360 }{10}[/tex]

= 36°

So rotational symmetry angles are multiple of 36°

So 36° x 4 = 144° is a rotational symmetry.

The all sides are congruent, so decagon as point symmetry.

Hence the answer is The statements the polygon has 144° rotational symmetry, The polygon has point symmetry and The polygon has 36° rotational symmetry are true.

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Irma was in charge of keeping attendance for a local summer camp each year.
Summer camp attendance
Year Kids
2018 93
2019 92
2020 78
2021 75
2022 78
According to the table, what was the rate of change between 2018 and 2021?

Answers

According to the table, the rate of change between 2018 and 2021 was 22.22%

What is rate of change?

A variable's rate of change over a predetermined amount of time. It is frequently used while discussing momentum and is typically represented as a ratio of one variable's change to another's corresponding change.

Given that,

Year Kids

2018   93

2019   92

2020  78

2021   75

2022   78

So, we have to calculate the rate of change between 2018 and 2021:

As we know, rate of change = (change in year / change in kids) × 100

rate of change = (4/ 18) × 100

rate of change = 22.22%

So, according to the table, the rate of change between 2018 and 2021 was 22.22%

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translate the sentence into an equation five time the sum of a number and 8 is equal to 4 use the variable b for the unknown number

Answers

Let us take the unknown number as b.

Sum of the number and 8 can be represented as,

8 + b

Therefore, five time the sum is,

5(8+b)

This is equal to 4, so,

5 (8 +b) = 4

This is the required equation.

The number is,

[tex]\begin{gathered} 5(8+b)=4 \\ 40+5b=4 \\ 5b=4-40 \\ 5b=-36 \\ b=-7.2 \end{gathered}[/tex]

The number is, -7.2.

4.
Jada drinks a cup of tea every morning at 8:00 am. for 14 days. There is 40 mg of
caffeine in each cup of tea she drinks. 24 hours after she drinks the tea, only 6% of
the caffeine is still in her body.
How much caffeine is in her body right after drinking the tea on the first, second, and third day?
1st day:
2nd day:
3rd day:
mg.
mg.
mg.

Answers

The amount of caffeine in her body on the 1st day is, 2.4 mg

The amount of caffeine in her body on the 2nd day is, 4.8 mg

The amount of caffeine in her body on the 3rd day is, 7.2 mg

Given, Jada drinks a cup of tea every morning at 8:00 am. for 14 days. There is 40 mg of caffeine in each cup of tea she drinks. 24 hours after she drinks the tea, only 6% of the caffeine is still in her body.

So, the amount of caffeine in her body on the 1st day is,

40×6/100

24/10

= 2.4 mg caffeine

The amount of caffeine in her body on the 2nd day is,

= 2× 2.4

= 4.8 mg caffeine

The amount of caffeine in her body on the 3rd day is,

= 3× 2.4

= 7.2 mg caffeine

Hence, The amount of caffeine in her body on the 1st day is, 2.4 mg

The amount of caffeine in her body on the 2nd day is, 4.8 mg

The amount of caffeine in her body on the 3rd day is, 7.2 mg

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2)B34CA) similar; AA similarityB) not similarC) similar; SSS and SAS similarityD) similar; SAS similarity34 HELP DUE RIGHT NOWW!:(( there are four marbles in a vase blue blue red and green jenny pulls out two marbles without replacement list tge sample space Which word means the opposite of "enable"? Stretch or compress each linear function. Let g(x) be a vertical compression of f(x)=8x+6 by a factor of 1/4. Write the rule for g(x). Find the value of xa. 13 b. 14/5 c. 5 d. 8 Comparing Relationships with Tables1. Decide whether each table could represent a proportional relationship.If the relationship could be proportional, what would the constant ofproportionality be?a. How loud a sound is depending on how farDistance toaway you are.Listener (ft)Sound Level(dB)85791020407367Costb. The cost of fountain drinks at Hot Dog Hut.Volume(fluid ounces)($)$1.4920$1.59$1.8930 Select the correct answer from each drop-down menu.y 10+816+4AETBB1+60-8106A sequence of transformations maps AABCO ABC. The sequence of transformations that maps ABC onto ABC is a followed by Name the type of reaction below:CaO + H2O Ca(OH)2 Trying to use a model or number line for fractions for a 4th grader use three letters to name (a) the plane on which the square pyramid sits and (b) a plane represented by one of the sides. Help me asap I'm so stressed it's a Yes Or No questionstheres 7 questions in the image each one is a yes or no answer pls help I'm super stressed A local water park found that if the price of admission was $19, the attendance was about 1550 customers per week. When the price of admission was dropped to $16,attendance increased to about 2350 per week. Write a linear equation for the attendance in terms of the price,p. (A = mp + b) Which of the following countries were created following the war? *O SwitzerlandOYugoslaviaO SerbiaBulgaria Suppose Julia spends $932 on her credit card. Calculate the amount of interest she would owe in one month if she does NOT pay off her balance in full by the due date. Julia's APR is 16.99%. Estimate the interest charges using the monthly periodic rate gabrielle wants to buy a new pair of jeans. if the jeans were originally $25.00, but are on sale with a $15 discount, how much will gabrielle have to pay for the jeans. Question 15 of 31In a 45-45-90 right triangle, what is the ratio of the length of one leg to thelength of the other leg?A. 2:1B. 1:2C. 2:1O D. 1:1SUBMIT How does Dr. Heidegger change in the story? In his speech to the freshman class advocating reducing alcohol use on campus, Xavier stated that athird of the freshman class had taken an oath not to drink until they could do so legally. Xavier isoffering by showing his audience that many people had done what he wanted the audienceto do.O a gesture of goodwillO a credibility statementO negative social proofO positive social proof Allison drew a map of where she and her friends live. Allison's house is at point A, and her friends live at points B, C, and D. She only wrote some of the distances, in blocks, on the map. Also, AD is a perpendicular bisector of BC. Allison wants to know the distance between her house and point C.What is the measure of AC?