Answers
Answer:
point A90°CCWStep-by-step explanation:
a) All of the arcs show point A is the center of rotation.
__
b) The angle marked at point A is 90°.
__
c) The arrows indicate the direction of rotation is counterclockwise.
Related Questions
find the value of x.
Answers
Answer: A
Step-by-step explanation:
∠BAD and ∠BAC are supplementary angles. They add up to 180°. Since we are missing 1 angle to find x, we can use this to find it.
180=122+y
y=58
Now, we know that the missing angle is 60°, we can find that x is.
24+58+x=180
82+x=180
x=98°
The solution to | x-1 | =5x+2
Answers
x-1=5x+2= x-5x=2+1= -4x=3 = x=-3/4
PLZZZZ HELPPP FOR BRAINLIEST! COMPARING EXPONENTIAL FUNCTIONS WHICH STATEMENT CORRECTLY COMPARES FUNCTIONS F AND G
Answers
Answer:
B. Left limits are the same; right limits are different.
Step-by-step explanation:
When we talk about "end behavior," we are generally concerned with the limiting behavior of the function for x-values of large magnitude. Decreasing exponential functions all have the same end behavior: they approach infinity on the left (for large negative values of x), and they approach a horizontal asymptote on the right (for large positive values of x).
If we are to write the end behavior in terms of specific limiting values, we would have to say that ...
as x → -∞, f(x) → ∞
as x → -∞, g(x) → ∞ . . . . . . the same end behavior as f(x)
__
and ...
as x → ∞, f(x) → -4
as x → ∞, g(x) → (some constant between 0 and 5) . . . . . different from f(x)
__
So, in terms of these limiting values, the left-end behavior is the same; the right-end behavior is different for the two functions, matching choice B.
Mary is selling chocolate bars to raise money. She earns $3 for each solid milk chocolate bar sold and $4 for each caramel-filled bar sold. If m represents the number of milk chocolate bars sold, and c represents the number of caramel bars sold, which of the following expressions represents the amount of money that Mary has raised? Question 6 options: A) 3m – 4c B) m∕3 + i∕4 C) 12mc D) 3m + 4c
Answers
Answer:
3m + 4c
Step-by-step explanation:
Whenever a word problem says the word earn that means the slope, also known as the rate of change, will be positive. Knowing this you can determine that both the caramel and milk chocolate slopes will be positive. After figuring all that out the only thing left to do is to make the equation. You know you have two slopes, and each slope needs a variable, so you will have to look back at the question. It is given that m represents the milk chocolate and c represents the caramel. Now all you have to do is make the slope the coefficient to the corresponding variable. The milk chocolates are 3 dollars, so the 3 goes in front of the m and the caramel chocolates are 4 dollars, so teh 4 goes in front of the 4. Since both slopes are positive no negatives or minus signs will be used in the equation. Knowing all this information you can now create the expression 3m + 4c.
Answer:
D
Step-by-step explanation:
3m + 4c
You deposited $2000 in an account earning 3% in interest compounded monthly. A) How much will you have in the account in 25 years? B) How much interest will you earn?
Answers
Answer:
c=p(r/100+1)n
c=2000(3/100+1)25
a)$4187.56
b)$4187.56-2000=2187.56
Step-by-step explanation:
A coffee shop offers 14 different types of flavor shots. If customer can choose any number of flavor shots to have in their coffee, how many flavor shot combinations are possible
Answers
Answer:
1024
Step-by-step explanation:
The number of flavor shot combinations possible is; 8.71782912 × 10¹⁰ combinations.
According to the question;
The coffee shop offers 14 different types of flavour shots. Customers are given the liberty to choose any number of flavor shots to have in their coffee.In essence, the total number of flavour shot Combinations that are possible can be evaluated as;
14!
which can be evaluated mathematically as follows;
14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 ×1.The result of the evaluation is therefore; 8.71782912 × 10¹⁰ combinations.
Read more:
https://brainly.com/question/16384836
Microsoft excel was used on a set of data involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant. A manager wants to know if the mean number of defective bulbs per case is greater than 20 during the morning shift. She will make her decision using a test with a level of significance of 0.10. The following information was extracted from the microsoft excel output for the sample of 46 cases:
n=46, Arithmetic mean=28.00, Std Dev =25.92, standard error=3.82, Null hypothesis: H0 : u<=20, alpha =0.10, df=45, t-test statistic=2.09, one tail test upper critical value =1.3006, p-value=0.021
i) what parameter is the manager interested in?
ii) state the alternative hypothesis for this study.
iii) what critical value should the manager use to determine the rejection region.
iv) explain if the, null hypothesis should be rejected and why or why not?
v) explain our risk of committing of a type1 error.
vi) explain if the data evidence proves beyond a doubt that the mean number of defective bulbs per case is greater than 20 during the morning shift
vii) what can the manager conclude about the mean number of defective bulbs per case during the morning shift using a level of significance of 0.10?
viii) what would the p-value be if these data were used to perform a two tail test?
Answers
Answer:
Step-by-step explanation:
i. The parameter the manager is interested in is number of defective bulbs in a case.
ii. Null hypothesis: u <= 20
Alternative hypothesis: u > 20
iii. The critical value the manager should use to determine the rejection region is 1.645.
iv. Using the p value which is 0.021 at 0.10 significance level we will reject the null as the p value is less than 0.1. Thus, we will conclude that there is enough statistical evidence to prove that the mean number of defective bulbs per case is greater than 20.
v. Our risk of committing type one error is alpha which is the level of significance set for the hypothesis test. An alpha level of 0.1 shows that we are willing to accept a 10% chance that we are wrong when you reject the null hypothesis.
vi. With a low p value, the data has enough evidence to prove that the mean number of defective bulbs per case is greater than 20 during the morning shift
vii. The manager will conclude that there is sufficient statistical evidence to prove that mean number of defective bulbs per case is greater than 20 during the morning shift.
viii. the p value if this is a two tail test would be 0.03662
The linear momentum is a constant when the mass varies inversely of the velocity. If the velocity is 16 meters per second
and the object weighs 450 kilograms, what is the weight for an object with a velocity of 12 meters per second?
400 kilograms
600 kilograms
6,400 kilograms
7,200 kilograms
Answers
Answer:
The weight for an object with a velocity of 12 meters per second is 600 kilograms
Step-by-step explanation:
Formula of linear momentum : p = mv
where p is the momentum
m = mass
v = velocity
If the velocity is 16 meters per second and the object weighs 450 kilograms
Substitute the values
[tex]p = 16 \times 450[/tex]
We are supposed to find the weight for an object with a velocity of 12 meters per second
So, p = 12m
We are given that The linear momentum is a constant when the mass varies inversely of the velocity.
So,[tex]16 \times 450 = 12 m[/tex]
[tex]\frac{16 \times 450}{12}=m[/tex]
600 = m
So,the weight for an object with a velocity of 12 meters per second is 600 kilograms
The radius of a circle increases from 2 inches to 3 inches. By how many square inches does its area increase? A)5 pi B)2 pi C)Pi D)pi^2
Answers
Answer:
A)5 pi
Step-by-step explanation:
To get the increase, we must find the area of the circle when the radius was 2 inches and subtract it from the area of the circle when the radius increases to 3 inches. The difference is the increase in the area of the circle.
A circle of radius r has an area A given as
A = Pi r²
Hence when the radius was 2 inches, the area A
= Pi × 2²
= 4 Pi square inches
when the radius increases to 3 inches, the area
= Pi × 3²
= 9 Pi square Inches
The increase in area
= 9 Pi - 4 Pi
= 5 Pi
:D no copying i will get mad because ur wasting my time! with a question that u didn't work on. (thx)
Answers
Answer:
All points used
Step-by-step explanation:
2/3 ÷ 4= 2×2/2×3 ÷ 4/1 = 4/6 × 1/4= 4/4×1/6= 1/62/3 and 4/6 are equivalent fractionsActually all 5 points are part of explanation
Which quantity is proportional to 40⁄8?
Answers
40/8 is 5. You can check this by multiplying 8 and 5 and seeing if it equals 40. Also, if you look at 40/8 as a fraction you can simplify it. 40/8=20/4=10/2=5/1=5
Please answer this correctly without making mistakes as my work is due today
Answers
Answer:
2
Step-by-step explanation:
Arranging them in ascending order we have the scores as;
[tex]2, 3, 3, 4, 4, 6, 8, 9, 9, 9[/tex]
The median is the average of the 5th and 6th scores.
[tex] \frac{4 + 6}{2} \\ \frac{10}{2} \\ 5[/tex]
The new set of scores become
[tex]2,3,3,4,6,8,9,9,9,9[/tex]
The median is;
[tex] \frac{6 + 8}{2} \\ \frac{14}{2} \\ 7[/tex]
The difference is
[tex]7 - 5 = 2[/tex]
Hope it helps! Vote for brainliest!
The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 696 drowning deaths of children with 30% of them attributable to beaches. Find the value of the test statistic z.
Answers
Answer:
The test statistic Z = 3.125
Step-by-step explanation:
Given Population proportion P = 0.25
Given sample size 'n' = 696
Sample proportion 'p⁻' = 0.30
Test statistic
[tex]Z = \frac{p^{-} -P}{\sqrt{\frac{P Q}{n} } }[/tex]
[tex]Z = \frac{0.30-0.25}{\sqrt{\frac{0.25 X 0.75}{696} } } = 3.125[/tex]
Final answer:-
The test statistic Z = 3.125
The value of the test statistic z is 3.05.
The calculation is as follows:The standard deviation is
[tex]= \sqrt{ \frac{P\times (1 - P)}{n} }\\\\= \sqrt{\frac{0.25 \times (1 - 0.25)}{696} }[/tex]
= 0.0164
Now
the value of test statistics is
[tex]= \frac{(0.3) - 0.25}{0.0164}[/tex]
= 3.05
Therefore we can conclude that The value of the test statistic z is 3.05.
Learn more: brainly.com/question/17429689
66 cards are drawn from a standard deck without replacement. What is the probability that at least one of the cards drawn is a spade? Express your answer as a fraction or a decimal number rounded to four decimal places.
Answers
Answer:
0.8397
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the cards are chosen is not important. Also, they are drawn without replacement. So we use the combinations formula to solve this question.
Combinations formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
What is the probability that at least one of the cards drawn is a spade?
Either none is a spade, or at least one is a spade. The sum of the probabilities of these outcomes is 1.
The standard deck has 52 cards, of which 13 are spades. So
Probability that none are spades:
Desired outcomes:
6 cards from a set of 52 - 13 = 39. So
[tex]D = C_{39,6} = \frac{39!}{6!33!} = 3262623[/tex]
Total outcomes:
6 cards from a set of 52. So
[tex]T = C_{52,6} = \frac{52!}{6!46!} = 20358520[/tex]
Probability:
[tex]p = \frac{D}{T} = \frac{3262623}{20358520} = 0.1603[/tex]
Probability that at least one is a spade:
1 - 0.1603 = 0.8397
The answer is 0.8397
Consider the following sets of sample data: A: 431, 447, 306, 413, 315, 432, 312, 387, 295, 327, 323, 296, 441, 312 B: $1.35, $1.82, $1.82, $2.72, $1.07, $1.86, $2.71, $2.61, $1.13, $1.20, $1.41 Step 1 of 2 : For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place.
Answers
Answer:
Dataset A
We have the following results:
[tex] \bar X_A = 359.786[/tex]
[tex]s_A= 60.904[/tex]
[tex] CV_A = \frac{60.904}{359.786}= 0.169 \approx 0.2[/tex]
Dataset B
We have the following results:
[tex] \bar X_B = 1.791[/tex]
[tex]s_B= 0.635[/tex]
[tex] CV_B = \frac{0.635}{1.791}= 0.355 \approx 0.4[/tex]
Step-by-step explanation:
For this case we have the following info given:
A: 431, 447, 306, 413, 315, 432, 312, 387, 295, 327, 323, 296, 441, 312
B: $1.35, $1.82, $1.82, $2.72, $1.07, $1.86, $2.71, $2.61, $1.13, $1.20, $1.41
We need to remember that the coeffcient of variation is given by this formula:
[tex] CV= \frac{s}{\bar X}[/tex]
Where the sample mean is given by:
[tex] \bar X= \frac{\sum_{i=1}^n X_i}{n}[/tex]
And the sample deviation given by:
[tex]s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}[/tex]
Dataset A
We have the following results:
[tex] \bar X_A = 359.786[/tex]
[tex]s_A= 60.904[/tex]
[tex] CV_A = \frac{60.904}{359.786}= 0.169 \approx 0.2[/tex]
Dataset B
We have the following results:
[tex] \bar X_B = 1.791[/tex]
[tex]s_B= 0.635[/tex]
[tex] CV_B = \frac{0.635}{1.791}= 0.355 \approx 0.4[/tex]
It is 5 degrees outside and the temperature will drop 4 degrees each hour for the next 3 hours. What will the temperature be in 3 hours?
Answers
Answer:
-7 degrees
Step-by-step explanation:
The temperature is predicted to be ...
5 +3(-4) = 5 -12 = -7 . . . . degrees
__
To find the change, multiply the rate of change by the time period. To find the new temperature, add the change to the starting temperature.
PLS HELP
On one day, the stock of Seraj Food Technologies went up by 30%. The next day, the stock fell by 30% Over the two days, the stock fell overall by "x" percent. What is "x"?
Answers
Answer:
9%
Step-by-step explanation:
Let the required number be 100.
Now, according to the question, the number is first increased by 30 %
⇒ 100 + 30 % of 100
⇒ 100 + [(30*100)/100]
⇒ 100 + 30
⇒ 130
Then, it is decreased by 30 %
⇒ 130 - (30 % of 130)
⇒ 130 - [(30*130)/100]
⇒ 130 - 39
⇒ 91
Net Decrease = 100 - 91
= 9
Percent Decrease = (Change in number*100)/100
⇒ (9*100)/100
= 9 %
Please answer this correctly
Answers
Answer:
Raspberry: 30%
Strawberry: 15%
Apple: 20%
Lemon: 35%
Step-by-step explanation:
18 + 9 + 12 + 21 = 60 (there are 60 gummy worms)
18 out of 60 = 30%
9 out of 60 = 15%
12 out of 60 = 20%
21 out of 60 = 35%
Please mark Brainliest
Hope this helps
Answer:
Raspberry Worms: 30%
Strawberry Worms: 15%
Apple Worms: 20%
Lemon Worms: 35%
Step-by-step explanation:
Raspberry Worms: [tex]\frac{18}{18+9+12+21}=\frac{18}{60}=\frac{30}{100}[/tex] or 30%
Strawberry Worms: [tex]\frac{9}{18+9+12+21}=\frac{9}{60} =\frac{15}{100}[/tex] or 15%
Apple Worms: [tex]\frac{12}{18+9+12+21} =\frac{12}{60} =\frac{20}{100}[/tex] or 20%
Lemon Worms: [tex]\frac{21}{18+9+12+21} =\frac{21}{60} =\frac{35}{100}[/tex] or 35%
Question # 2: Find the probability distribution of the number of boys in families with three children, assuming equal probabilities for boys and girls.
Answers
Answer: P(3 boys)=1/8
P(1 boy)=3/8
P(2 boys)=3/8
P(0 boys)=1/8
Step-by-step explanation:
Lets use letter B-for the boys and letter G for the girls
Lets use for any situation description 3 simbols.
For example GBG - mens 1st kid is girl, second is boy and the third one is girl again
We have only 1 set of 3 BOYS : B-B-B -TOTAL 1 set
The sets of 2 BOYS are looking as follows: B-B-G, B-G-B, G-B-B - TOTAL 3 sets
The sets of 1 BOY are looking as follows: B-G-G, G-B-G, G-G-B - TOTAL 3 sets
Finally we have only 1 set of 0 BOYS : G-G-G -TOTAL 1 set
Total amount of sets is 8.
So probability of 3 boysamong 3 kids is P(3 BOYS)=1/8
probability of 2 boys among 3 kids is P(2 BOY)=3/8
probability of 1 boy among 3 kids is P(1 BOY)=3/8
probability of 0 boy among 3 kids is P(1 BOY)=1/8
Consider a population with 3 observations: 6, 10 and 12. You use simple random sampling without replacement to select a sample of 2 observations. What is the probability that the sample mean is 9 or larger
Answers
Answer:
probability = 2/3
Step-by-step explanation:
given data
population with 3 observations = 6, 10 and 12
solution
Sample space of select 2 number without a replacement will be as
Sample space = {(6,10),(6,12),(10,12)}
so here in two cases is = (6,12),(10,12)
that is mean is greater than or equal to 9 (9 and 11 respectively)
so we can say probability is = 2/3
probability = 2/3
Suppose that you decide to buy a car for $62000, including taxes and license fees. You saved $ 11000 for a down payment. The dealer is offering you a choice between two incentives.
Incentive A is $7000 off the price of the car, followed by a four-year loan at 5.85%.
Incentive B does not have a cash rebate, but provides free financing (no interest) over four years.
The difference in monthly payments between the two offers is what?
Answers
Answer:
The difference in monthly payments between the two offers is $32.2
Step-by-step explanation:
He already has $11,000 saved, thus, the amount remaining to pay is $62,000-$11,000 = $51,000
Now, incentive A is taking off 7,000 off the price of the car but the framing amount is a loan at 5.85%
Thus the amount of loan to be taken will be 5.85% on (51,000-7000) = 44,000
So the amount to be paid monthly via incentive A is calculated using the formula below
Monthly payment = P(r/n)/[1-(1+r/n)^-nt]
Where P = 44,000
r is the rate = 5.85% = 5.85/100 = 0.0585
n is the number of months per year = 12
t is the time in years = 4 years
Substituting the values, we have;
Monthly payment = 44,000(0.0585/12)/[1-(1+ 0.0585/12)^-60] = 44,000(0.004875)/[1-(1+0.004875)^-48] = 214.5/(0.2081) = $1030.3
Incentive B however, involves paying the 51,000 over 4 years.
The monthly payment here will be 51,000/48 = $1,062.5
Thus, the difference between the two payments will be;
$1062.5 - $1030.3= $32.2
The figure shows a square floor plan with a smaller square area that will accommodate a combination fountain and pool.The floor with the fountain pool area removed has an area of 33 Square meters and a perimeter of 36 meters. Find the dimensions of the floor and the dimensions of the square that will accommodate the fountain and pool.
Answers
Answer:
(x, y) = (7, 4) meters
Step-by-step explanation:
The area of the floor without the removal is x^2, so with the smaller square removed, it is x^2 -y^2.
The perimeter of the floor is the sum of all side lengths, so is 4x +2y.
The given dimensions tell us ...
x^2 -y^2 = 33
4x +2y = 36
From the latter equation, we can write an expression for y:
y = 18 -2x
Substituting this into the first equation gives ...
x^2 -(18 -2x)^2 = 33
x^2 -(324 -72x +4x^2) = 33
3x^2 -72x + 357 = 0 . . . . write in standard form
3(x -7)(x -17) = 0 . . . . . factor
Solutions to this equation are x=7 and x=17. However, for y > 0, we must have x < 9.
y = 18 -2(7) = 4
The floor dimension x is 7 meters; the inset dimension y is 4 meters.
Find the slope of the line that goes through the given points.
(6,1) and (9,-1)
Answers
Answer:
m = -2/3
Step-by-step explanation:
Slope Formula: [tex]m = \frac{y2-y1}{x2-x1}[/tex]
So,
[tex]m = \frac{-1-1}{9-6}[/tex]
m = -2/3
When it is 11 a.m. in Johannesburg, it is 6 p.m. the same day in Tokyo, Japan. A flight leaves OR Tambo in Johannesburg at 6 a.m. on Tuesday for Tokyo. The flight takes 18 hours in the air, with an additional 1 hour stop-over on land. What time will it arrive in Tokyo?
Answers
Answer:
Dear User,
Answer to your query is provided below
The time will be 8am on Wednesday when flight arrive in Tokyo.
Step-by-step explanation:
Here, You can see that when 11 a.m. in Johannesburg, it is 6 p.m. the same day in Tokyo, Japan ; this means 7Hrs. gap.
Further, A flight leaves Johannesburg at 6 a.m. on Tuesday for Tokyo takes 18 hours in the air, with an additional 1 hour stop-over on land.
So, 6a.m. + 18hr.+1hr.+7hr. = 8am on Wednesday in Tokyo (Arrival)
Use the graph of f(x) to answer the question. What is the output of f when x=−6? Enter your answer as a number, like this: 42
Answers
Answer:
For input value, x = -6, output value will be y = 1.2
Step-by-step explanation:
In this question graph of a quadratic 'f' function has been given.
Input values of a function are represented by the x-values and output values by the y-values on the graph.
Let's take a point (5, -1) on this graph.
For input value of 5, output value of the function is (-1).
Similarly, for an input value of x = -6, output value of the function will be y = 1.2
[ordered pair (-6, 1.2) given on the graph)
Answer: 1.2
Step-by-step explanation:
I did the test and got 100%
A graph has points (3, 9), (4, 13.5), and (5, 18). Given the graph of a linear function, identify the steps used to find the initial value. Check all that apply. Find the rate of change using rise over run. Find corresponding y values when x = 6, x = 7, and x = 8. Then plot the points to finish the line. Find corresponding y values when x = 2, x = 1, and x = 0. Then plot the points to finish the line. The initial value corresponds to the y value when x = 1. The initial value corresponds to the y value when x = 0.
Answers
Answer:
its A, C, E on edg
Step-by-step explanation:
Answer:
a c e
Step-by-step explanation:
Suppose a student carrying a flu virus returns to an isolated college campus of 6000 students. Determine a differential equation governing the number of students x(t) who have contracted the flu if the rate at which the disease spreads is proportional to the number of interactions between students with the flu and students who have not yet contracted it. (Use k > 0 for the constant of proportionality and x for x(t).)
Answers
Answer:
[tex]\dfrac{dx}{dt}= kx[6000-x], x(0)=0, k>0[/tex]
Step-by-step explanation:
Total Number of Students =6000
Number of students who have contracted the flu =x(t)
Number of students who have not contracted the flu =6000- x(t)
Now, the rate at which the disease spreads is proportional to the number of interactions between students with the flu and students who have not yet contracted it.
[tex]\dfrac{dx(t)}{dt}\propto x(t)[6000-x(t)] \\$Introducing the constant of proportionality, k, we have:\\\dfrac{dx}{dt}= kx[6000-x][/tex]
Initially, the campus is uninfected, therefore: x(0)=0
Therefore, a differential equation governing the number of students x(t) who have contracted the flu is:
[tex]\dfrac{dx}{dt}= kx[6000-x], x(0)=0, k>0[/tex]
A farmer finds that if she plants 85 trees per acre, each tree will yield 80 bushels of fruit. She estimates that for each additional tree planted per acre, the yield of each tree will decrease by 4 bushels. How many trees should she plant per acre to maximize her harvest
Answers
Answer:
52 Trees
Step-by-step explanation:
If she plants 85 trees per acre, each tree will yield 80 bushels of fruit.
Yield = 85 X 80
Let x be the additional tree planted per acre.
For each additional tree planted per acre, the yield of each tree will decrease by 4 bushels.
Therefore, the yield:
[tex]F(x)=(85+x)(80-4x)\\F(x)=6800-260x-4x^2[/tex]
Next, we maximize F(x) by taking its derivatives and solving for its critical point.
[tex]F'(x)=-260-8x\\$Setting $F'(x)=0,$ we have:$\\-260-8x=0\\8x=-260\\$Divide both sides by 8$\\x=-32.5[/tex]
[tex]F''(x)=-8, $therefore we have a maximum[/tex]
It is apparent that she currently has too many trees per acre. To get a maximum harvest, she needs to reduce the number of trees by approximately 32.5 trees.
Therefore, number of trees per acre she should plant:
85+(-32.5)
=85-32.5
=52.5 Trees
Since the number of trees can only be an integer and it cannot be greater than 52.5, the number of trees to be planted per acre to maximize her harvest is 52.
A standardized mathematics test given to 14,000 students had the scores normally distributed. The mean was 850 and the standard deviation was 75. A student scoring below 775 points was deficient in mathematics. About how many students were rated deficient?
Answers
Simplify this expression. 2/(x-y)+3/(x+y)-5/(y-x)-(7x-9y)/(y^(2)-x^(2))=?/(y^2-x^2 Find the question mark (?)
Answers
Answer:
i found the question mark ;)
Step-by-step explanation:
