A large multiplex movie house has many theaters. The largest theatre has 36 rows. There are 20 seats in the first row. Each row has four seats more than the previous row. How many total seats are there in this theatre?

Answers

Answer 1

Answer:

2880 seats

Step-by-step explanation:

r1 r2 r3 r36

20 + 20+4 + 20+4+4 + ···+20+4×35

total seats = ((20 + 20+4×35)÷2)×36= 2880


Related Questions

1/2 - 9/4x = -2/3 solve for x and simplify your answer as much as possible

Answers

Hello!

So, we are given the following to solve:

[tex]\frac{1}{2}- \frac{9}{4}x=- \frac{2}{3}[/tex]

To solve this, subtract  [tex]\frac{1}{2}[/tex] from both sides.

[tex]\frac{1}{2} -\frac{9}{4}x- \frac{1}{2} =-\frac{2}{3} -\frac{1}{2}[/tex]

Simplify.

[tex]-\frac{9}{4}x= -\frac{7}{6}[/tex]

Multiply both sides by 4.

[tex]4(-\frac{9}{4}x)=4(-\frac{7}{6})[/tex]

Simplify.

[tex]-9x=-\frac{14}{3}[/tex]

Divide both sides by -9.

[tex]\frac{-9x}{-9}= \frac{-14/3}{-9}[/tex]

Finally, simplify.

[tex]x=\frac{14}{27}[/tex]

Hope this helps!

DONT IGNORE PLEASE HELP

Answers

Answer:

y = 5

Step-by-step explanation:

the equation of a horizontal line, parallel to the x- axis is

y = c ( c is the value of the y- coordinates the line passes through )

the line passes through (- 5, 5 ) and (0, 5 ) with y- coordinates 5 , then

y = 5 ← equation of line

) To stay healthy, Emily decided to walk for 4
5
mile every
day. She walked 2
5
mile to work and walked 1
4
mile at
lunchtime. How much more does she need to walk after
dinner if she wants to meet her target distance?

Answers

If she wants to meet her target distance 3/20 steps need to be taken.

Emily made the decision to walk 4/5 kilometers every day in order to keep healthy. She walked a distance of 2/5 miles to work and a distance of 1 mile for lunch.

The desired range is 4/5 miles.

walked for 2/5 miles and for 1/4 miles.

Total miles walked is [tex]\frac{2}{5} + \frac{1}{4}[/tex]

= [tex]\frac{13}{20}[/tex]

Mileage walked overall is +

LCD is 20

add the fractions after matching the denominators

The desired range is 4 to 5 miles.

Now deduct the distance you walked from the goal distance.

[tex]\frac{4}{5} - \frac{13}{20} \\\\\frac{16}{20} - \frac{13}{20} \\\\\frac{3}{20}[/tex]

the required walking distance is 3/20

To learn more about fraction from given link

https://brainly.com/question/14921178

#SPJ9

The Great Games Company sells 9/20 of its games through its online store. What percent of the games are sold online?

Answers

If the Great games company sells 9/20 of its games through its online stores, then the percentage of the games are sold online is 45%

The fraction of games sells through the online store = 9/20

Here we have to convert the simple fraction to the percentage

Simple fraction is a fraction that consist of whole number numerator and denominator. The top term in the simple fraction is called the numerator and bottom term is called denominator

The percentage is defined as the number that is expressed as the fraction of 100. It is represented by the percentage sign "%"

To convert  simple fraction to percentage, multiply the simple fraction by 100

The percent of games are sold online = (9/20)×100

= 45%

Hence, if the great games company sells 9/20 of its games through its online stores, then the percentage of the games are sold online is 45%.

Learn more about percentage here

brainly.com/question/17151247

#SPJ1

suppose that we want to generate the outcome of the flip of a fair coin, but that all we have at our disposal is a biased coin that lands on heads with some unknown probability p that need not equal to 1 2 . consider the following procedure for accomplishing your task

Answers

The probability of getting heads is 1/2 which typically implies that the coin is fair. NO, procedure (b) does not give a fair coin flip outcome.

Given that, we want to generate the outcome of the flip of a fair coin, but that all we have at our disposal is a biased coin which lands on heads with some unknown probability p that need not be equal to1/2.

What is the probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

The following procedure for accomplishing our task are:

1. Flip the coin.

2. Flip the coin again.

From here will know that the coin is first flipped twice

3. If both flips land on heads or both land on tails, it implies that we return to step 1 to start again. this makes the flip to be insignificant since both flips land on heads or both land on tails

But if the outcomes of the two flip are different i.e., they did not land on both heads or both did not land on tails , then we will consider such an outcome.

Let the probability of head = p

so P(head) = p

the probability of tail be = (1 - p)

This kind of probability follows a conditional distribution.

Therefore, the probability of getting heads is 1/2 which typically implies that the coin is fair. NO, procedure (b) does not give a fair coin flip outcome.

To learn more about the probability visit:

https://brainly.com/question/12905909.

#SPJ1

"Your question is incomplete, probably the complete question/missing part is:"

Suppose that we want to generate the outcome of the flip of a fair coin, but that all we have at our disposal is a biased coin which lands on heads with some unknown probability p that need not be equal to1/2. Consider the following procedure for accomplishing our task:

1. Flip the coin.

2. Flip the coin again.

3. If both flips land on heads or both land on tails, return to step 1. 4. Let the result of the last flip be the result of the experiment.

(a) Show that the result is equally likely to be either heads or tails.

(b) Could we use a simpler procedure that continues to flip the coin until the last two flips are different and then lets the result be the outcome of the final flip?

Intelligence Quotient (IQ) scores are often reported to be normally distributed with 100.0 and standard deviation = 15.0. A random sample of 57 people is taken.
What is the probability that the mean IQ score of people in the sample is less than 987 Round your answer to 4 decimal places, if necessary.

Answers

A measure of the probability that the sample's average IQ is below 987 is 44.70 %.

Why are z-scores important?

The Z-score quantifies the discrepancy between a given value and the standard deviation. The Z-score, also known as the standard score, indicates how many standard deviations a specific data point deviates from the mean.

Do z scores have p values?

The Z-standard score's deviation measure, which the p-value is, can be regarded of as a percentile expression. So they do have p-values.

Given: IQ scores are frequently described as having a normal distribution with a mean of 100.0 and a standard deviation of 15.0. A sample of 57 persons is chosen at random.

Z-score = (X- μ)/σ

             = (98-100)/15

             = -0.1333

P value for this z score equals 0.4470 which is 44.70 %

Therefore, the probability that the average IQ of the sample's population is lower than 987 is 44.70 %.

Learn more about p-value here:

https://brainly.com/question/4621112

#SPJ9

Given that f(x)=2x + 1 and g(x)=3x-1/2x+1
(a) evaluate f(1/2) and g(-1)​

Answers

Answer:

a)

f(1/2) = 2

g(-1) = -3/2

Step-by-step explanation:

for f(x) = 2x + 1 substitute the x with 1/2

2(1/2) +  1 then solve

1+1

2

for g(x) = 3x - 1/2x + 1 substitute with -1

3(-1) - 1/2(-1) +1 then solve

-3 + 1/2 + 1

-3/2

A pendulum is 45cm long. When the pendulum swings it travels along the arc of the circle and covers a distance of 27.5cm. Calculate the size of the angle which the pendulum travels.

Answers

The angle which the pendulum travels is 0.61 radian

What is central angle of circle ?

Two parallel, identical bases connected by a curving surface form a 3D solid shape known as a cylinder. Similar to a disk in shape, these bases. The axis of the cylinder shape is a line drawn through the middle of, or connecting, two circular bases.

Given that :A pendulum is 45cm long. When the pendulum swings it travels along the arc of the circle and covers a distance of 27.5cm.

  Central Angle =[tex]\frac{length of arc}{Radius}[/tex]

= [tex]\frac{27.5}{45}[/tex]

=0.61 radian

The angle which the pendulum travels is 0.61 radian

To learn more about central angle of circle visit :

brainly.com/question/23247585

#SPJ9

Dale has 33 carnival tickets. Its costs 7 tickets to ride the roller coaster. How many rides can he take?

Answers

He can ride it 4 times

Describe and correct the error a student made when graphing y + 5 = - 3/4 (x - 8).

Answers

The student's first error was in step 1.

Step 1 should involve plotting a point at (0, 1).

Step 2 should involve plotting a point 3 units down and 4 units right from the point in step 1, at (4, -2).

Step 3, connecting the points with a line was correct.

In this question, we have been given an equation of line y + 5 = - 3/4 (x - 8)

We need to describe and correct the error a student made when graphing y + 5 = - 3/4 (x - 8).

Consider given equation.

y + 5 = - 3/4 (x - 8)

y + 5 = - 3/4 x - (-3/4) 8

y + 5 = -3/4 x + 6

y = (-3/4)x + 6 - 5

y = -3/4 x + 1

Here,

slope(m) = (-3/4)

and y-intercept (c) = (0, 1)

Therefore, the student's first error was in step 1.

Step 1 should involve plotting a point at (0, 1).

Step 2 should involve plotting a point 3 units down and 4 units right from the point in step 1, at (4, -2).

Step 3, connecting the points with a line was correct.

Learn more about the graph of equation here:

https://brainly.com/question/11950136

#SPJ1

Please help asap

Word definitions you can use
Rigid Transformations
Sequence of Transformations
Translations (slide) -
Reflection (flip)

Answers

The best description for the sequence of transformation used is; Rigid Transformations.

What is the type of transformation?

In mathematics, a rigid transformation is defined as a geometric transformation of a defined Euclidean space that does not change or preserves the Euclidean distance that is between every pair of points. Examples of this rigid transformations are rotations, translations, reflections e.t.c

Now, from the given transformation, the first thing to notice is that the transformation does not change the distance between pair of points in the diagram. Secondly, it is neither only a translation nor reflection as it is more than  one transformation that was used and so it can be described as a rigid transformation.

Read more about Transformation at; https://brainly.com/question/4289712

#SPJ1

Here is an unlabeled rectangle, followed by other quadrilaterals that are labeled.

a. Select ALL quadrilaterals that are scaled copies of the unlabeled rectangle.

Answers

The quadrilateral named D, H, and E will be the scaled copies of the unlabeled rectangle.

A quadrilateral may be defined as a closed figure having four sides whereas a rectangle is a type of quadrilateral which has four sides in which any two sides are equal and the other two sides are also equal. The interior angles are 90°. The scale factor may be defined as the ratio of two dimensions such that one figure is large, and another is small. The scale factor is done due to the unpractical measurement of any figure. For example, if a figure is a scale copy of the scale factor of 6/2 it means 2 is converted into 6. Now, from the question If any figure is a scaled copy, then all dimensions must be enlarged with the same factor it means length and width both must be enlarged with the same factor. So, the unlabeled rectangle has 4 grid lengths and 2 grid widths. In H length is 8 grids and width are 4 which is the multiplication of 2 by 4 and 2. Quadrilateral D and E also follow the same.

To learn more about scale factors:

brainly.com/question/22312172

#SPJ9

b. If Mark stays where he is and Mandy walks to him, how far must she walk?

Answers

Mandy must to walk a distance of 24.73 units towards Mark.

Given:

Mark is standing at 35th Street and 21st Avenue, so his location can be determined using the coordinates (35,21)

Mandy is positioned at 59th Street and 15th Avenue, hence her position's coordinates are as follows: (59,15).

We must now determine the distance Mandy must travel if Mark stays where he is and walks to meet him.

We can use the distance formula to determine this:

D = [tex]\sqrt{(x_{2}-x_{1} )^{2} + (y_{2} -y_{1})^{2} } }[/tex]

Here,

(x₁, y₁) =  (35, 21)

(x₂, y₂) = (59, 15)

Then,

D = [tex]\sqrt{(59-35)^{2}+(21-15)^{2} }[/tex]

D = [tex]\sqrt{24^{2} +6^{2} }[/tex]

D = [tex]\sqrt{576+36}[/tex]

D = √612

D = 24.73

That is,

Mandy must to walk a distance of 24.73 units towards Mark.

Learn more about distance here;

https://brainly.com/question/28996289

#SPJ1

ASAP!!!

2 1/4x + 1/2x = 44
Solove for X and include all steps to get branliest.

Answers

Answer:

16

Step-by-step explanation:

→ Add the fractions

[tex]2\frac{1}{4} +\frac{1}{2} =\frac{9}{4} +\frac{1}{2} =\frac{9}{4} +\frac{2}{4} =\frac{11}{4}[/tex]

→ Equate to 44

[tex]\frac{11}{4} x=44\\[/tex]

→ Multiply both sides by 4

11x = 176

→ Divide both sides by 11

x = 16

10.8 divided by 0.09

Answers

120 is the correct answer

Answer: 120

Step-by-step explanation:

[tex]\displaystyle\\10.8:0.09=\\\\\frac{10.8}{0.09}=\\\\\frac{10.8(100)}{0.09(100)}=\\\\\frac{1080}{9} =\\\\\frac{9(120)}{9}=\\\\120[/tex]

which equation describes the line that is perpendicular to y=1/3x+2

Answers

Answer:

y= -3x+1

Step-by-step explanation:

What is m Enter your answer in the box.
A=(3x-35)
B=(x-35)
c=x

Answers

The measure of angle A is found as 115 degrees.

What is described as the term triangles?A triangle is a 2-dimensional closed shape with three sides, three angles, and three vertices. A triangle is a type of polygon.A triangle is made up of three sides. The sides of triangle ABC are AB, BC, and CA.The angle made by any 2 sides of a triangle, signified by the symbol, is the angle of the triangle. There are three angles in a triangle. ABC, BCA, and CAB are the 3 angles of a triangle ABC. These angles also are known as B, C, and A, in that order.A vertex is the point at which two sides of such a triangle intersect. There are three vertices in a triangle. The vertices of triangle ABC are A, B, and C.

For the given question, the values of the angles are given.

A=(3x-35)

B=(x-35)

c=x

We know that the sum of all angles in a triangle is 180.

A + B + C = 180

Put the values;

3x-35 + x-35 + x = 180

Simplifying;

5x - 70 = 180

5x = 250

x = 50

Put the values in the angles;

Angles A = 3×50 - 35

Angles A = 115

Thus, the measure of angle A is found as 115 degrees.

To know more about the triangles, here

https://brainly.com/question/17335144

#SPJ13


Pablo invested in a savings bond for 3 years and was paid simple interest at an annual rate of 4%. The total interest that he earned was
$48. How much did he invest?
If necessary, refer to the list of financial formulas.

Answers

Answer:

400

Step-by-step explanation:

=

1

We know that:

3 R=4% 1 = 48

T =3 R = 4% into formula 48 2 Substitute

1=Prt

48= Prt

Solve the equation:

3 × 0.04x= 48

3

X = 400

so Pablo invested 400$

Johnny was building a tree house. The boards for the floor are 8.89 centimeters wide. He will use 18 boards to cover the floor. How wide is the floor of the treehouse?

Answers

Answer:

1422.5778

Step-by-step explanation:

8.89x8.89=79.0321. 79.0321x18=1422.5778

f(x) = 1x g(x) = x − 4 Can you evaluate (g ○ f)(0)?

Answers

The evaluation of the composite function (g o f)(0) is -4

How to solve composite function?

A composite function is generally a function that is written inside another function.

Therefore, let's solve the composite function below:

f(x) = 1x

g(x) = x - 4

Let's find (g o f)(0)

Therefore,

(g o f)(x) = g(f(x))

Hence,

(g o f)(0) = g(f(0))

f(0) = 1(0) = 0

Therefore, let's substitute f(0) in g(x)

(g o f)(0) = 0 - 4

(g o f)(0) =  - 4

learn more on function here: brainly.com/question/24181440

#SPJ1

Which phrase best describes the graph of this equation? 3x+3y^2+6y+3=0
The screenshot has the answer!!

Answers

The parabola with vertex (-1, 0), focus (-1/4, -1) and directrix x = 1/4. Therefore, option C is the correct answer.

The given equation is 3x+3y²+6y+3=0.

What is the parabola?

An equation of a curve that has a point on it that is equally spaced from a fixed point and a fixed line is referred to as a parabola. The parabola's fixed line and fixed point are together referred to as the directrix and focus, respectively.

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Left

Vertex: (0, -1)

Focus: (-1/4, -1)

Axis of symmetry: y=-1

Directrix: x = 1/4

The coordinate points to plot (2, 0.41), (-2, -2.41), (-1, 0), (-1, -2) and (0, -1).

The parabola with vertex (-1, 0), focus (-1/4, -1) and directrix x = 1/4. Therefore, option C is the correct answer.

To learn more about the parabola visit:

https://brainly.com/question/21685473.

#SPJ1

Help me I need help because I need help

Answers

I believe it would be 63 x 10^-4.

Answer:

6.3 * 10^3

Step-by-step explanation:

6.3 * 10^3

:]

Hilda went hiking and used the app on her phone to track her progress. When she looked back, she discovered she had hiked up 530 feet, down 602 feet, up 1003 feet, and down 89 feet to get to the lake. What is her elevation in relation to where she started?

Answers

The elevation is 848 feet.

What is meant by elevation?

The word elevation is often used to describe locations on the surface of the Earth, whereas altitude or geopotential height is used to describe locations above the surface, such as those of flying aeroplanes or orbiting satellites, and depth is used to describe locations below the surface.

A geographical feature's elevation is determined by how high it is above the mean sea level (MSL). Accordingly, elevation is the distance between the height that corresponds to the ocean's surface and the top of the feature.

Given:

Hilda hiked up 530 feet,

down 602 feet,

up 1003 feet,

and down 89 feet to get to the lake.

Taking all similar cases together

Hiked up

= 530 + 1003

= 1533 feet

and, hiked down

=602+83

= 685

Thus, the elevation is

= 1533 - 685

= 848

Learn more about elevation here:

https://brainly.com/question/481548

#SPJ1

Determine the quotient of
3/7 divided by 2/3

Answers

9/14
Okay, so dividing fractions is the same thing as multiplying by the reciprocal. Which means 2/3 will be flipped over to 3/2 now multiplying 3/7 x 3/2 you will get 9/14

Trigonometry Question!
Second Question: Calculate the value of X.

Show work needed.

Answers

Answer:

0.026 is the value of x.

Step-by-step explanation:

sinx=p÷h

sinx=5.3÷8.2

sinx=sin0.02......

x=0.02°

Write the answer in the blank.
What number is 350 more than 400?

Answers

Answer:

Step-by-step explanation:

We are looking for a new number which is 350 more than 400.

We will get the new number by adding 350 to 400.

We write it down as:

400+350=750

Therefore your answer is; 750

Answer: 750

Step-by-step explanation: You add both of them 350+400...

what is 1+13⋅2+52−3+15−3

Answers

Answer:

88

Step-by-step explanation:

multiply 13 by 2 = 26

then add by 1 52 and 15

= 94

then subtract 94-6

88

Remember use Dmas while solving

Find two functions F and G such that (f°g) (x) = h(x).

Answers

This operation is equivalent to:

[tex](f\circ g)(x)=f(g(x))[/tex]

It is like a function inside a function. So, we can look for parts in h(x) that are common and call that the function inside.

As we can see, h(x) have terms with x + 4, so if we call:

[tex]g(x)=x+4[/tex]

We can see that h(x) becomes:

[tex]h(x)=(g(x))^2+2g(x)[/tex]

And if we substitute g(x) by x, we will get the expression of the ouside function f(x):

[tex]f(x)=x^2+2x[/tex]

This way, we have:

[tex](f\circ g)(x)=(g(x))^2+2g(x)=(x+4)^2+2(x+4)=h(x)[/tex]

So, the functions are:

[tex]\begin{gathered} g(x)=x+4 \\ f(x)=x^2+2x \end{gathered}[/tex]

1
10
To solve this problem, ask the question
= ?
How many tenths are in 4/5?
How many fifths are in 1/10?
How many tenths are in 1/5?
How many fifths are in 5?

Answers

There are 8 tenths in 4/5, There are five fifths in 1/10, there are 2 tenths in 1/5, there are 25 fifths in 5.

What is tenths and fifths?

The digit that follows the decimal has the place value of tenth. It stands for the digit's 1/10 position.

The fifth of a number is obtained by multiplying five occurrences of the number n together: n5 = n n n n. A number's fourth power or its square by its cube can likewise be used to create fifth powers.

a) Given 4/5, multiply the numerator and denominator by 2 to obtain the tenths. We get =4/5 2/2 =8/10 =8(1/10). Similarly, in 1/5, calculate the tenths in 1/5.

c) 525/25 = 25 is the fifth in 5.

To know more about fifths and tenths, visit:

https://brainly.com/question/1254522

#SPJ9

x3 + 11x2 – 3x – 33 by grouping

Answers

Answer:

-3

Step-by-step explanation:

It was quite easy

Answer:

Step-by-step explanation: factor out x2

from the expression x2 (x+11) -3x-33

Factor out-3 from the expression x2 (x-+11) -3(x+11)

Factor out x+11 your solution is x2 (x+11) (x-3).

Other Questions
why is Canada's system called a parliamentary democracy? Arrange events in the section in the order they occur: Mildred invites her friend over to watch White clown, The hound come sniffing around the door while Mildred are reading books, Faber gives montag hos modified seashell radio, Montag has a breakdown on public transportation due to not being able to get the sound of advertisements out of his head. HELP ME PLEASE AND HURRY :[ From a lamp post four feet away from her, Sandra looks up to the sky and sees a bird that is five feet away from her. How high up is the bird? Show all of your steps in answering the question Easton is a songwriter who collects royalties on his songs whenever they are played in a commercial or a movie. easton will earn $40 every time one of his songs is played in a commercial and he will earn $110 every time one of his songs is played in a movie. easton's songs were played on 6 more commercials than movies, and his total earnings on the royalties from all commercials and movies was $840. determine the number of commercials and the number of movies on which easton's songs were played. What is the slope y = 8x - 15 Downhill ski racing requires the racer to maintain the tuck position for over a minute while they are going extremely fast therefore the muscle fibers recruited must not fatigue easily or the scare could be severely injured which type of muscle fiber is predominantly recruited during downhill ski racing? men versus women: the average 20- to 29-year-old man is 69.9 inches tall, with a standard deviation of 3.0 inches, while the average 20- to 29-year-old woman is 64.1 inches tall, with standard deviation of 3.8 inches. a. find the z scores for a 67-inch- man and a 62-inch woman. Angelo's kayak travels 10km/h in still water. If the river's current flows at a rate of 4km/h, How long will it take to travel 35km downstream? it'll take [____] hours. ANALYZE CRAFT AND STRUCTURE REASONING AND EVIDENCEA. DIRECTIONS: Read the passage below. Then, answer the questions that follow.Our town's Shade Tree Commission is responsible for the care and maintenance oftrees growing on town property, including parks and recreational areas. The Commissionalso supposedly reviews and approves plantings around new construction and overseestree removal at building sites. Something is going wrong, though. The trees aredisappearing. Our town, once characterized by beautiful greenery, is beginning to looklike a wasteland-all for the sake of commerce.A new shopping area was just built on a wooded lot. The shade trees on the town'sright-of-way should have been preserved. Instead, all 57 trees on the lot were takendown. The Shade Tree Commission demanded that the developer be fined and newtrees be planted along the right-of-way. But perhaps the Commission should have paidattention in the first place! Our town is known for its tree-lined streets and park-likeproperties. Should we sit idly by while commerce is allowed to blight the landscape?1. What is the writer's claim in this argument?2. What is one piece of evidence supporting the writer's claim? In the sale room at a store, every item is on sale for half the original price, plus 3 dollars. Complete parts a through d. (a) Write a function g(x) that finds half of x. (b) Write a function f(x) that adds 3 to x. (c) Write and simplify the function (f o g)(x). (d) Use the function from part (c) to find the sale price of a shirt at the store that has the original price $60 Graph the following set of points: A B C (1,3), (-3, -3), (5,2). Find the area and perimeter of ABC . Leave answer in two decimal places. suppose m Arithmetic sequence is given by and .What is the sum of the first terms of that arithmetic sequence? An economy is in long-run macroeconomic equilibrium. What will be the short-run effects of an increase in investment spending?. How did the building of the Dismal Swamp Canal impact North Carolina?ResponsesIt allowed people to avoid muddy roads on the way to Fayetteville.It sped up the travel of goods from Eastern North Carolina to Virginia.It made Wilmington an important port and center of trade.It led to business growth in the Piedmont. Find the greatest common factor for the list of terms.x4, x7, x9 what can we know for sure about the denoument of the legend? What are all of the solutions to the trigonometric equation 2 times cosine squared theta minus 2 times sine squared theta equals radical 2 question mark The forensic technician at a crime scene has just prepared a luminol stock solution by adding 10.0 g of luminol into a total volume of 75.0 mL of H2O .What is the molarity of the stock solution of luminol?Express your answer with the appropriate units. When some bacteria use lactose as a source of energy, they produce propionic acid and carbon dioxide. What is the name for this process?.