What happens if the red lines are NOT parallel. Which angle types are still congruent? (Please help...thanks)

Answers

Answer 1

Answer:

When the red lines in a geometric figure are not parallel, the congruency of angles may vary. Vertical angles formed by the intersection of non-parallel lines are always congruent, while corresponding angles and alternate interior angles may or may not be congruent. The congruency of angles depends on the specific relationship between the angles and the lines in the figure, and further analysis of the figure would be necessary to determine which angles are congruent.


Related Questions

Right answer gets brainliest and 25 points‼️‼️‼️‼️

Answers

Answer: d

Step-by-step explanation:

Answer:

B: Range of round 1 were higher than the range of Round-2.

Step-by-step explanation:

Please give me Brainliest.

P=70q, p=-q^2+12000
Find the equilibrium quantity and equilibrium price for the commodity whose supply and demand functions are given

Answers

The required equilibrium quantity is 80 units and equilibrium price is 5600 in monetary units for the supply function p = 70q and the demand function p= -q^2+12000.

The supply function of a commodity is given as, p= 70q

The demand function of the commodity is given as, p= -q^2+12000

We know at equilibrium condition of market,

Supply of a commodity is equal to its demand in the market.

Therefore,

70q = p = -q^2+12000

⇒ 70q = -q^2+12000

⇒ q^2+ 70q -12000 = 0

⇒ q^2+ 150q - 80q -12000 = 0

⇒ q( q + 150) - 80( q + 150) = 0

⇒ (q -80) ( q + 150) = 0

⇒q = 80 ad q = -150

We ignore the negative value of q, that is - 150 , as quantity of a commodity can not in negative.

Therefore, the equilibrium quantity of the commodity is 80 units.

Thus, p = 70(80) = 5600 (in monetary units)

Therefore, equilibrium price of the commodity is 5600 (in monetary units).

To know more about equilibrium quantity and equilibrium price here

https://brainly.com/question/30357972

#SPJ4

In a social group, 62 members enjoy dancing and 28 members enjoy hiking. If each of the 75 members in the group enjoys dancing or hiking, how many members enjoy both dancing and hiking?

Answers

Answer: 162

Step-by-step explanation:

so you will have to do 62+28+75=162

15 member enjoy both dancing and hiking.

What is Conditional Probability?

The likelihood of the preceding event is multiplied by the probability of the subsequent, or conditional, occurrence to determine the conditional probability. Conditional probability examines the likelihood that one event will occur given the likelihood that a related event will occur beforehand.

We have,

Member enjoy dancing, n(D) = 62

Member enjoy hiking, n(H) = 28

Member enjoy dancing or hiking, n(D ∪ H) = 62

Using Conditional probability

n (D ∪ H) = n(D) + n(H) - n (D ∩ H)

75 = 62 + 28 - n (D ∩ H)

75 - 90 = - n (D ∩ H)

n (D ∩ H) = 15

Thus, 15 member enjoy both dancing and hiking.

Learn more about Conditional probability here:

https://brainly.com/question/30144287

#SPJ2

What is the mean, median, mode, and range for 53, 13, 34, 41, 26, 61, 34, 13, 69

Answers

Answer:

Answers down below!

Step-by-step explanation:

Mean: 38.2

Median: 34

Range: 56

Mode: 13 and 34

Hope this helps!

what is the mean of a game where one of the two possible outcome happens 20% of the time, with a value of 5, and the other possible outcome has a value of 10 g

Answers

The mean of the game is 9

To find the mean of a game with two possible outcomes, we need to multiply the value of each outcome by its probability and then add the results.

Let X be the random variable representing the outcome of the game. The first outcome has a value of 5 and a probability of 0.2, while the second outcome has a value of 10 and a probability of 0.8.

Thus, the expected value or mean of the game can be calculated as:

E(X) = (0.2 x 5) + (0.8 x 10)

= 1 + 8

= 9

Therefore, the mean of the game is 9

Learn more about mean

https://brainly.com/question/31101410

#SPJ4

When the explanatory variable is categorical and the response variable is quantitative, what type of plot would be appropriate?

Answers

When the explanatory variable is categorical and the response variable is quantitative, a box plot or a bar plot would be appropriate to display the relationship between the two variables.

When the explanatory variable is categorical and the response variable is quantitative, a box plot or a bar plot would be appropriate.

A box plot (also known as a box-and-whisker plot) displays the distribution of the response variable within each category of the explanatory variable. It shows the median, quartiles, and outliers of the data, making it useful for visualizing differences in central tendency and spread between categories.

A bar plot (also known as a bar chart) displays the mean, median, or sum of the response variable for each category of the explanatory variable. It is useful for comparing the values of the response variable between categories.

Both box plots and bar plots are effective in displaying the relationship between a categorical variable and a quantitative variable. The choice between the two would depend on the specific research question, the nature of the data, and the intended audience.

Learn more about explanatory variable here

brainly.com/question/17562805

#SPJ4

These plots help visualize the distribution of the quantitative response variable across different categories in the explanatory variable.

When the explanatory variable is categorical and the response variable is quantitative, a bar chart or a box plot would be appropriate. A bar chart displays the mean or median of each category, while a box plot displays the distribution of each category including the median, quartiles, and outliers. These plots help to visualize the relationship between the categorical and quantitative variables and identify any patterns or differences between categories.
When the explanatory variable is categorical and the response variable is quantitative, an appropriate type of plot to use would be a box plot or a violin plot. These plots help visualize the distribution of the quantitative response variable across different categories in the explanatory variable.

learn more about explanatory variable

https://brainly.com/question/29820449

#SPJ11

please please please please please please please please please please help me out​

Answers

You would want to find the slope of the line (for this, look at the coordinate pairs and the y intercept). The slope equation is y2-y1/x2-x1. Once you find this out, rewrite in y = mx + b

Plug in 6 for x, then solve for y.

The manager of a local nursery wants to know which types of plants his customers buy most often. What is the population from which the manager should choose a sample to answer her question?

A. The first 25 adults who come into the nursery during one business day.
B. The list of customers who purchased plants from the nursery.
C. Every adult who enters the nursery during one business day.
D. Subscribers to a gardening magazine.

Answers

The population from which the manager should choose a sample to answer her question is: B. The list of customers who purchased plants from the nursery.

How to distinguish between population and sample?

A population is a term that goes by the definition of it being the entire group that we specifically intend to get conclusions about. Meanwhile, we ca sample is defined as the specific group that you will collect data from. The size of the given sample is normally always less than  that of the total size of the given population. In research, it is noticed that a population doesn't always mean we are referring to people.

Now, we are told that the manager wants to know which types of plants his customers buy most often.

Looking at the options, the most appropriate population from which a sample could be gotten from is the list of customers who purchased plants from the nursery.

Read more about Population and sample at: https://brainly.com/question/7301139

#SPJ1

1+1+1+1+1++1+1+1++1+1+1+1+1+3+3+34+4748957+84765-8476+84564-4-776466+4765
If you give me a crown I give you 50 points.

Answers

Answer:

4138158

Step-by-step explanation:

1+1+1+1+1+1+1+1+1+1+1+1+1+3+3+34

-13+6+34

-19+34

=59

4748957+84765

=4833722

59+4833722

=4833781

keep counting all of the number and then you get the same (?? iguess) answer as mine.

4 rows. She decides to plant 1 2 of a row of each type of pepper. How many different types of peppers is she going to

Answers

It seems that part of your question is missing, but I can answer what I understand.

If a gardener plants 1/2 of a row of each type of pepper and she has 4 rows available for planting, then she can plant a total of 2 x 4 = 8 different types of peppers.

To see why, consider that she is planting 1/2 of a row for each type of pepper. This means that for each row, she is planting 1/2 x 1 = 1/2 types of peppers. Therefore, for 4 rows, she can plant 4 x 1/2 = 2 types of peppers.

So, the gardener can plant 8 different types of peppers in total.

Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral triangle base.

Answers

The surface area of the triangular pyramid in the image given is calculated as: C. 323 square inches.

How to Find the Surface Area of a Triangular Pyramid Using its Net?

To find the surface area of the triangular pyramid, find the area of each face and the base as shown in the net given and add all together.

Area of the three triangular faces = 3(1/2 * base * height)

= 3(1/2 * 15 * 10)

= 3(75)

= 225 square inches

Area of the triangular base = 1/2 * base * height

= 1/2 * 15 * 13

= 97.5 square inches

The surface area = 225 + 97.5 = 322.5

≈ 323 square inches.

Learn more about the surface area of triangular pyramid on:

https://brainly.com/question/28372970

#SPJ1

(ASAP!) Graph the image of the figure on the right under the given translation.

Answers

The translation is as shown in the figure in option B

What is translation transformation?

Translation transformation is a type of geometric transformation that moves every point of a figure the same distance and direction. This transformation does not change the size, shape, or orientation of the figure, but only its position in space.

The transformation required ahs the rule defined as

3 units to the right and 4 unit up

Applying the rule arrives the image in option B

Learn more about translation at

https://brainly.com/question/1574635

#SPJ1

given the following situation, determine if the data is rank data. a publix manager wants to measure the difference in the total value sales on a saturday vs. a monday. he randomly selects sales data from 20 saturdays and 20 mondays from the previous year and he analyzes his data. is this rank data? group of answer choices not rank data rank data

Answers

The data the Publix manager has collected is not rank data.

Rank data is a type of data where the observations can be ordered or ranked based on their magnitude or position. Examples of rank data include the finishing positions of runners in a race, the order of finish of teams in a tournament, or the ranking of products based on their sales performance.

The data the Publix manager has collected is not rank data because it consists of total value sales on Saturdays and Mondays, which are measured in dollars or some other continuous unit of measurement. The data is not ordered or ranked based on any particular attribute or characteristic, but rather represents a continuous variable. Therefore, the data is not rank data.

Carrington had a checking account balance of $800 at the
beginning of the month. She deposited $2,800 and used her debit
card for purchases of $310, $88, and $35.50. She also wrote
checks for $150 and $375.
What is her balance now?

Answers

Her current checking account balance is $2,641.50.

Account balance calculation.

To find Carrington's current checking account balance, we need to add up all the deposits and subtract all the withdrawals from her starting balance.

Starting balance = $800

Deposits = $2,800

Withdrawals = $310 + $88 + $35.50 + $150 + $375 = $958.50

Therefore, Carrington's current checking account balance is:

$800 + $2,800 - $958.50 = $2,641.50

Her current checking account balance is $2,641.50.

Learn more about account balance below.

https://brainly.com/question/29406151

#SPJ1

-3×(2×-5) how do u solve it​

Answers

The value of 3×(2×-5) is 30

What is meant by the term value?

Value refers to the worth or usefulness of something, typically determined by its usefulness, desirability, or importance in relation to other things. It can also refer to the ethical or moral principles and beliefs that guide a person's actions and behaviours.

According to the given information

To solve the expression -3×(2×-5), we first need to evaluate the expression inside the parentheses:

2×-5 = -10

Then, we can substitute this value into the original expression and simplify further:

-3×(-10) = 30

Therefore, -3×(2×-5) = 30.

To know more about value visit

brainly.com/question/14316282

#SPJ1

For the line y = 1 — 4x, create a table to show the values of x and y where x is from -2 to 2.​

Answers

Answer:

Answers in the picture. Thanks

Final answer:

To create a table for the line y=1-4x from x=-2 to x=2, we substitute in each x value into the equation, solve for y, and display these pairs in a table. The pairs are (-2, 9), (-1, 5), (0, 1), (1, -3), and (2, -7).

Explanation:

The equation of the line is y = 1 - 4x. To create a table showing the values of x and y where x is from -2 to 2, we need to substitute each value of x into the equation, solve for y, and then organize the results in a table.

When x = -2, y = 1 - 4*(-2) = 1 + 8 = 9When x = -1, y = 1 - 4*(-1) = 1 + 4 = 5When x = 0, y = 1 - 4*0 = 1When x = 1, y = 1 - 4*1 = 1 - 4 = -3When x = 2, y = 1 - 4*2 = 1 - 8 = -7

So, the table representing these values would look like this:

x               y

-2             9

-1              5

0               1

1               -3

2              -7

Learn more about linear equations here:

https://brainly.com/question/32634451

#SPJ2

Find the value of sin Q rounded to the nearest hundredth, if necessary.
√95
P
7

Answers

To find sin(Q), we first calculated the length of the hypotenuse using the Pythagorean theorem. Then we used the sine function to find sin(Q) which is approximately 0.78 rounded to the nearest hundredth.

We can use the Pythagorean theorem to find the length of the third side, which is the hypotenuse

h = √(P² + Q²)

h = √(7² + √95²)

h = √(49 + 95)

h = √144

h = 12

Now, we can use the sine function to find sin(Q)

sin(Q) = opposite/hypotenuse = √95/12

Using a calculator, we get

sin(Q) ≈ 0.78

Rounding to the nearest hundredth, we get

sin(Q) ≈ 0.78

Therefore, the value of sin(Q) rounded to the nearest hundredth is 0.78.

To know more about Pythagorean theorem:

https://brainly.com/question/14930619

#SPJ1

--The given question is incomplete, the complete question is given

" Find the value of sin Q rounded to the nearest hundredth, if necessary.

Q= √95

P= 7 "--

A teacher purchased a fish tank for her classroom. The dimensions of the tank are 34 inches by 58 inches by 42 inches. What is the maximum amount of water that the tank can hold? a. 82,824 in3 c. 41,412 in3 c. 2,436 in3 d. 1,972 in3

Answers

The maximum amount of water that the tank can hold is 82,824 cubic inches, which corresponds to option (a) in the given answer choices.

To find the maximum amount of water that the tank can hold, we need to find the volume of the tank. The volume of a rectangular prism (which is what a fish tank is) can be found by multiplying the length, width, and height of the prism.

Volume = length x width x height

Plugging in the given dimensions of the fish tank, we get:

Volume = 34 in x 58 in x 42 in

Volume = 82,824 in^3

Therefore, Correct option is A.

To learn more about Volume click on,

https://brainly.com/question/26144802

#SPJ4

Question 7 of 8
Which variable is most important to the following problem?
Ralph and Patrick play on a basketball team. Ralph played the whole first
quarter and the first 4 minutes of the second quarter. Patrick played the rest
of the second quarter and all of the third quarter. Ralph played the whole
fourth quarter. Each quarter is 10 minutes long. How long did Patrick play?
O A. the number of minutes Patrick played
B. the number of substitutions between Patrick and Ralph
C. the number of players on the team
OD. the length of a quarter

Answers

Answer:

  D.  the length of the quarter

Step-by-step explanation:

Given Patrick started playing 4 minutes into the 2nd quarter, and played until the end of the 3rd quarter, you want to know how long Patrick played.

Quarter

If q is the length of a quarter, Patrick's playing time is ...

  2q -4 . . . . minutes

In order to give this a numerical value, we need to know the value of q.

The most important variable to the problem is ...

  D.  the length of a quarter.

<95141404393>

which graph shows the solution to the system of linear equations?
y = 1/3x
x + 3y = 6

Answers

Answer:

The top right graph shows the solution to this system of linear equations.

How to do this cuz I’m a little slow

Answers

-5 plus -3 equals -8.
Just add the absolute value together and add the negative sign in the front. So, 5 plus 3 is 8 and add the negative sign in the front. That would be -5+-3=-8.

If the radius is 3 and LM=2, what is KL?

Answers

The calculated value of the length of segment KL is 4 units

Calculating the length of segment KL

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

Radius, r = 3

LM = 2

JK = 3

The length KL is calculated as

KL² = JL² - JK²

Where

JL = r + LM = 3 + 2 = 5

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

KL² = 5² - 3²

KL² = 16

Take the square roots

KL = 4

Hence, the length is 4 units

Read more about circles at

https://brainly.com/question/12823137

#SPJ1

Is ΔABC ~ ΔDEF? Explain.

Answers

Answer:

ΔABC and ΔDEF are similar by (AA).

option (2)

Step-by-step explanation:

Here to test if the two triangles are similar based on the information given I will attempt to see if they are similar using

Angle-Angle (AA) Similarity Theorem: If two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar.

Δ = 180°

therefore using the givens:

m∠CAB = 18°

m∠ABC = 110°

m∠ACB = 180°-110°-18° = 52°

now for ΔDEF

because we know corresponding parts of similar triangles are proportional

∠DEF  ≅  ∠CAB

and because m∠ACB = 52° and m∠FDE = 52°

∠FDE  ≅  ∠ACB

Therefore by AA, we have proven that these two triangles ΔABC and ΔDEF are similar.

so option (2)

which statement is true about this equation

Answers

The equation represents a linear function.

What is quadratic equation?

A quadratic equation is a polynomial equation of degree two which can be written in the form: ax² + bx + c = 0, where x is the variable and a, b, and c are constants with 'a' not equal to 0. The term 'quadratic' comes from the Latin word 'quadratus', which means 'square'.

The equation given in the image is a quadratic equation in standard form, which means it is written in the form ax^2 + bx + c = 0, where a, b, and c are constants and x is the variable.

To determine which statement is true about this equation, we need to analyze its discriminant, which is given by the expression b^2 - 4ac. The discriminant tells us about the nature of the solutions of the quadratic equation.

If the discriminant is positive, then the equation has two distinct real roots.

If the discriminant is zero, then the equation has one real root (also known as a double root).

If the discriminant is negative, then the equation has two complex roots (conjugate pairs).

In the given equation, a = 3, b = -4, and c = 1. Substituting these values into the discriminant formula, we get:

b^2 - 4ac = (-4)^2 - 4(3)(1) = 16 - 12 = 4

Since the discriminant is positive, we know that the quadratic equation has two distinct real roots. Therefore, statement (A) is true.

To know more about quadratic equation visit:

https://brainly.com/question/1214333

#SPJ1

Simplify (2x3y)(3x4y2).


5x7y3

6x7y2

6x7y3

6x12y2 -------------------------------- (69 points ill follow you thank the question and
account if its right)

Answers

The expression[tex](2x^3y)(3x^4y^2)[/tex] simplifies to [tex]6x^7y^3[/tex]. The coefficients are multiplied, and the variables are combined by adding their exponents. Option C.

To simplify the expression [tex](2x^3y)(3x^4y^2),[/tex] we can multiply the coefficients and combine the variables with the same base by adding their exponents.

Multiplying the coefficients, we have:

2 * 3 = 6

For the variables, we multiply the x terms by adding their exponents (3 + 4 = 7), and the y terms by adding their exponents (1 + 2 = 3).

Therefore, simplifying the expression [tex](2x^3y)(3x^4y^2)[/tex] gives us:

[tex]6x^7y^3[/tex]

Hence, the simplified form of[tex](2x^3y)(3x^4y^2)[/tex] is[tex]6x^7y^3[/tex]. Option c is correct.

For more such question on coefficients . visit :

https://brainly.com/question/1038771

#SPJ8

Answer:

C:6x7y3

Step-by-step explanation:

i took the test and got it right

simply the following expression below.
(5x^2 + 5x -6)

Answers

Answer: It is simplified the way it is it can not be simplified anymore. its a trick question

Step-by-step explanation:

helpp will give brainlest ASAPPPPPP

Answers

Answer:

1) She needs (35 × 2) + 8 = 78 inches

Find the total surface area of this triangular prism

Answers

Answer:

2(1/2)(8)(15) + 17(2) + 8(2) + 15(2)

= 200 cm^2

Can a binomial probability distribution with p =.10 and n = 40 be approximated by the normal probability distribution? If so, what are the mean and standard deviation for the normal approximation?

Answers

The normal approximation for the given binomial distribution with p = 0.10 and n = 40 has a mean of 4 and a standard deviation of 1.93.

The binomial probability distribution can be approximated by the normal distribution when certain conditions are met, such as a large sample size and a probability of success not too close to 0 or 1.

In this case, n = 40 and p = 0.10. To determine if the normal approximation is appropriate, we can check if both np and n(1-p) are greater than or equal to 10

np = 40 x 0.10 = 4

n(1-p) = 40 x 0.90 = 36

Both np and n(1-p) are greater than or equal to 10, so the normal approximation is appropriate.

The mean of the binomial distribution is given by μ = np = 4, and the standard deviation is given by σ = √(np(1-p)) = √(40 x 0.10 x 0.90) ≈ 1.93.

To find the mean and standard deviation of the normal approximation, we use the same mean and standard deviation values

μ = np = 4

σ = √(np(1-p)) ≈ 1.93

Learn more about binomial probability distribution here

brainly.com/question/30786502

#SPJ4

3-10 A gable roof with a slope of 9 inches per foot has a rake slope of 1.25. If the run is 10 feet and the eaves length is 30 feet. What is the roof area in square foot?A. 300.B. 450.C. 700.D. 800.

Answers

The roof area is 468.75 square feet.

To find the roof area, we need to follow these steps:
Determine the rise (vertical distance) using the slope of 9 inches per foot:

Since the run is 10 feet, the rise is 9 inches/foot × 10 feet = 90 inches.
Convert the rise to feet: 90 inches ÷ 12 inches/foot = 7.5 feet.
Calculate the length of the rafter using the Pythagorean theorem:

Rafter length = √(run² + rise²) = √(10² + 7.5²) = √(100 + 56.25) = √156.25 = 12.5 feet.
Determine the total length of the gable roof:

Since the rake slope is 1.25, we have Total length = Rafter length × Rake slope = 12.5 feet × 1.25 = 15.625 feet.
Calculate the roof area:

Roof area = Eaves length × Total length = 30 feet × 15.625 feet = 468.75 square feet.
None of the given options matches the calculated roof area.

It is possible there is a mistake in the question or the provided options.

For similar question on roof.

https://brainly.com/question/29253418

#SPJ11

Other Questions
What must you do in Python before opening a socket? xplain one way in which enlightenment ideas influenced political ideologies in latin america, asia, or africa in the period circa 18001900. Importance of atmosphere and biosphere to the mankind grade 7 When determining how to respond to rising energy costs, policy makers assessed the likely environmental, health, and safety impacts of energy exploration, development, and use. This is an example of ______. A hydraulic system contains one small piston that has a diameter of 1 (one) inch, and a large piston that has an area of 12.56 in. What is the system pressure if the large piston produces a force of 37,775 pounds? Assume that 34.0 mL of a 0.10 M solution of a weak base B that accepts one proton is titrated with a 0.10 M solution of the monoprotic strong acid HA.How many moles of HA have been added at the equivalence point? a fair coin is tossed three times, and the events a and b are defined as follows: a: 5at least one head is observed.6 b: 5the number of heads observed is odd.6 a. identify the sample points in the events a, b, a b, ac , and a b. b. find p1a2, p1b2, p1a b2, p1ac 2, and p1a b2 by summing the probabilities of the appropriate sample points. c. use the additive rule to find p1a b2 . compare your answer with the one you obtained in part b. d. are the events a and b mutually exclusive? why? study of ancient pottery. refer to the chance (fall 2000) study of ancient pottery found at the greek settlement of phylakopi, presented in exercise 2.14 (p. 36). of the 837 pottery pieces uncovered at the excavation site, 183 were painted. these painted pieces included 14 painted in a curvilinear decoration, 165 painted in a geometric decoration, and 4 painted in a naturalistic decoration. suppose 1 of the 837 pottery pieces is selected and examined. a. what is the probability that the pottery piece is painted? b. given that the pottery piece is painted, what is the probability that it is painted in a curvilinear decoration? 3. What is the molarity of a Sr(OH)2 solution if 40 mL is required to neutralize 70 mL ofa 8.5 M solution of H3PO4? 50 Points Please help quickly A manufacturer records data on the battery life of a new product and discovers the data is normally distributed. The mean life of the battery is 120 hours and has a standard deviation of 10 hours. The manufacturer commits to replacing all batteries that last less than 100 hours. If 32,200 batteries were produced, how many would they expect to replace? If one zero of the polynomial (32 + 8 + ) is the reciprocal of the other, then find the value of k A client is being discharged with Holter monitoring for 48 hours. Which client statement indicates teaching is effective? What does it mean when a capacitor is said to be charged? The underlying, overall message that people get from a business communication is called the ___ message of the communication People who break down barriers to achieve a goal help new generations realize that anything is possible. AgreeDisagreeExplain why you voted the way you did the agencies that regulate food safety at your establishment isA. CDC B. State and local departments of health C. Federal department of health D. HACCP _____ design experiments involve experimental and control participants with similar key characteristics. The tropical location of Africa sitting astride the equator makes it a prime location for the expansion of which renewable energy industry?a) coalb) solarc) hydropowerd) winde) nuclear 27. Glycosylation of proteins inside the endoplasmic reticulum does not involve: A) a His residue on the protein. B) an Asn residue on the protein. C) dolichol phosphate. D) glucose. E) N-acetylglucosamine.