Answer:
[tex]-\frac{3}{2} , -\frac{4}{9} , \frac{2}{11}, 0.7[/tex]
Step-by-step explanation:
Negative numbers are obviously smaller than positive numbers, hence, we have -4/9 and -3/2.
-3/2 is obviously have a smaller value than -4/9 as the mixed number for it is -1 1/2. [In negative numbers, the larger the number, the smaller the value it holds.]
[tex]0.7= \frac{7}{10}[/tex]
We can turn the denominator of 2/11 and 7/10 to the same number, 110.
[tex]\frac{2}{11} = \frac{20}{110}[/tex]
[tex]\frac{7}{10} = \frac{77}{110}[/tex]
Hence, we know that 77 is larger than 20, so, the largest number is 0.7.
a ball is kicked such that its height (h) can be represented by the equation , where t represents time in seconds. how long does it take for the ball to reach its highest point, and how high is that maximum height?
The maximum height of the ball is 200 feet.
What do you mean by equation?An expression can be used to solve for a single unknown value, for example, the equation 2x + 3 = 7 can be solved for x by subtracting 3 from both sides, giving us 2x = 4 and then dividing both sides by 2, giving us x = 2. In this example, x = 2 is the solution to the equation.
To find the time to the highest point, we need to find the time when the velocity of the ball is equal to zero. The velocity of the ball can be found by taking the derivative of the height equation with respect to time.
The derivative of h with respect to t is:
dh/dt = 32t + 64
Setting the derivative equal to zero and solving for t, we get:
0 = 32t + 64
-64 = 32t
t = -2
So, the time to the highest point is -2 seconds. However, since time cannot be negative in this context, we can say that it takes 2 seconds for the ball to reach its highest point.
To find the maximum height, we can substitute the time of 2 seconds back into the original height equation:
h = 16(2)^2 + 64(2) + 8
h = 64 + 128 + 8
h = 200
So, the maximum height of the ball is 200 feet.
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The complete question is:
solve the equation. [tex]sqrt(25y^2+40y+16)=5y+4[/tex]
[tex]\sqrt{25y^2+40y+16}=5y+4\implies \stackrel{\textit{squaring both sides}}{25y^2+40y+16=(5y+4)^2} \\\\\\ 25y^2+40y+16=25y^2+40y+16\hspace{5em}\textit{infinitely many solutions}[/tex]
the equation on the left is really the equation on the right in disguise.
for a system of equations, that usually means that one equation is the same as the other, so the graph will be the graph of the second one pancaked over the first one, where they touch each other all the way, and since both lines go to infinity, then they have infintely many solutions.
A die is thrown twice. determine the probability that the sum of the rolls is less than 4 given that at least one of the rules is a 1.
If at least one of the rolls is a 1, then there is a 1/12 chance that the total of the two dice roll will be less than 4.
A dice roll is what?idiom, informal, used to indicate that a situation could result in either a good or negative outcome. It's always a gamble to open a new restaurant. Whether we succeed or fail is up to chance.
Dice formula: What is it?Probability is calculated as follows: 3 out of 36 potential outcomes x desired outcomes = 0.0833. 8.33 percent is the calculated percentage. 7 is also the most frequent outcome when two dice are used. There are also six different ways to do it. The chance in this situation is 6 x 36 = 0.167, or 16.7%.
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0.3 as a repeating fraction
The value of the equation is A = 1/3
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
A = 0.333... be equation (1)
Now , the value of A is an irrational number
So , the value of A = 1/3
Therefore , the value of A = 1/3 or A = 2/6
Hence , the equation is A = 1/3
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Mo and Beth split £48 in the ratio 3.5 how mutch does Beth get
If Mo and Beth split £48 in the ratio 3.5, Beth gets £10.67.
Let's call the amount that Beth gets "x". Then, the amount that Mo gets is 3.5x.
We know that the total amount they split is £48, so we can set up the following equation:
x + 3.5x = £48
Next, we'll simplify the left side of the equation by combining like terms:
4.5x = £48
Finally, we'll solve for x by dividing both sides of the equation by 4.5:
x = £48 / 4.5 = £10.67
So Beth gets £10.67.
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A store sells regular towels for $7 and beach towels for $12. The store sells
42 towels, represented by the equation x + y = 42, where x is the number
of regular towels and y is the number of beach towels. The equation
7x + 12y = 339 represents the total revenue. How many of each type of
towel did the store sell?
The store sold 33 regular towels and 9 beach towels
Here, the store sells 42 towels, represented by the equation
x + y = 42, where x is the number of regular towels
and y is the number of beach towels.
and the equation 7x + 12y = 339 represents the total revenue.
We have system of equations:
x + y = 42 ........(1)
7x + 12y = 339 .........(2)
From equation (1),
x = 42 - y ..........(3)
Substitute above value of x in equation (2),
7(42 - y) + 12y = 339
294 - 7y + 12y = 339
5y = 339 - 294
5y = 45
y = 9
subatitute above value of y in equation (3)
x = 42 - 9
x = 33
Thus, the number of regular towels = 33 and the number of beach towels = 9
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Lauren has $400 in her savings account and spends $20 each week. Lydia has $250 in her account and saves $5 each week. After how many weeks will the girls have the same amount of money?
By solving linear equations we will see that they will have the same amount after 6 weeks.
After how many weeks will the girls have the same amount of money?We know that Lauren has $400 in her savings account and spends $20 each week, then the amount that she has after x weeks is modeled by the linear equation below:
y = 400 - 20x
And Lydia has $250 in her account and saves $5 each week, then her equation is:
y = 250 + 5x
They we have the same amount of money when:
400 - 20x = 250 + 5x
400 - 250 = 5x + 20x
150 = 25x
150/25 = x
6 = x
After 6 weeks they will have the same amount of money.
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Bianca is paid every week. In a four week month she earns $1,350. If the company takes out $175 each month for insurance, write an equation and solve for her weekly salary.
Answer:
2793.75
Step-by-step explanation:
1350 - 175 = 1175
1175 / 4 = 293.75
how aren’t 4/5 5/6 equivalent to 2/3
Answer: 4/5 and 5/6 are not equivalent to 2/3 because they represent different fractions. 4/5 represents 4 parts out of 5 total parts, while 5/6 represents 5 parts out of 6 total parts. 2/3 represents 2 parts out of 3 total parts. To check if two fractions are equivalent, you need to see if they simplify to the same fraction. For example, 4/5 simplifies to 8/10 and 5/6 simplifies to 5/6, but neither of them simplifies to 2/3. Hence, 4/5 and 5/6 are not equivalent to 2/3.
Step-by-step explanation:
Could someone please help me score 8/8 on this question? I know the answer, but I can't get 8/8 yet.
StarWatch Camping Site
Charge per person: £6 per night
The holiday is just 9 weeks away and they
each plan to save £13 per week from now
until their holiday.
Will they save enough money to cover all
their camping site charges?
If the answer is 'yes' say how much extra
money they will save.
You must show all your working.
Tent pitch:
(ground surface)
<10 m' at £15 per night
> 10 m² at £18 per night
Special offer: For every 5 nights you
stay, only pay for 4.
Lila and Wassim are planning a stay
at the StarWatch camping site.
They will:
• share a tent between them,
• both stay for a total of 10 nights,
• use a tent with a rectangular base
measuring 2.3 by 4.2 metres.
Based on the information provided, it can be concluded they will not save enough money to cover their camping site charges.
How much money do they need?Charge per person: 6 (charge per person) x 2 = 12 x 10 (number of days) = 120
Tenth charge per night: 18 x 8 (They will stay for 10 days but due to the offer pay for 4 nights if you stay 5, they will pay only 8 nights) = 144
Total: 264
How much money will they save?13 x 9 weeks = 117 x 2 (two people are saving) = 234
Based on this, the amount of money they will save is not enough as they will need $30 more to cover their expenses.
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Suppose an object is thrown upward with initial velocity of 48 feet per second from a high of 120 feet. The height of the object t seconds after it is thrown is given by h(t)=-16t^2+48t+120. Find the average velocity from t=2 to t=4.
Type your answer as a number with no units.
The average velocity of the object from t = 2 and t = 4 is equal to - 48 feet per second.
How to calculate the average velocity of an object thrown upward
In this problem we find the case of an object thrown upward, whose height (h(t)), in feet, as a function of time (t), in seconds, is represented by a quadratic equation. We need to determine the average velocity (u) of the object by means of secant line formula:
u = [h(4) - h(2)] / (4 - 2)
Where:
h(4) - Height of the object at t = 4 s, in feet.h(2) - Height of the object at t = 2 s, in feet.If we know that h(t) = - 16 · t² + 48 · t + 120, then the average velocity is:
t = 2
h(2) = - 16 · 2² + 48 · 2 + 120
h(2) = 152 ft
t = 4
h(4) = - 16 · 4² + 48 · 4 + 120
h(4) = 56 ft
u = (56 ft - 152 ft) / (4 s - 2 s)
u = - 48 ft / s
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What is the geometric mean between 6 and 8? Write your answer in simplified radical form
Answer:
4[tex]\sqrt{3}[/tex]
Step-by-step explanation:
the geometric mean of 2 numbers a and b is [tex]\sqrt{ab}[/tex]
the geometric mean of 6 and 8 is then
[tex]\sqrt{6(8)}[/tex]
= [tex]\sqrt{48}[/tex] ← express as factors
= [tex]\sqrt{16(3)}[/tex]
= [tex]\sqrt{16}[/tex] × [tex]\sqrt{3}[/tex]
= 4[tex]\sqrt{3}[/tex]
Subtract -7a^2+3a-9−7a
2
+3a−9minus, 7, a, squared, plus, 3, a, minus, 9 from 5a^2-6a-45a
2
−6a−45, a, squared, minus, 6, a, minus, 4.
Your answer should be a polynomial in standard form.
The required polynomial is [tex]12a^{2} -9a+5[/tex]
What is a polynomial?A polynomial is a expression that contains variables and coefficients, that involves all the four basic arithmetic operations.
Here the given two polynomials are,
[tex]-7a^{2} +3a-9 , 5a^{2} -6a-4[/tex].
subtracting these two polynomials we get,
[tex](5a^{2} -6a-4) - (-7a^{2} +3a-9 ) = 12a^{2} -9a +5[/tex].
Hence, required polynomial is [tex]12^{2} -9a+5.[/tex]
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Evaluate the expression for the given value of the variables.
0.7d - 2.1f=
d= 15, f= 3
0.7d - 2.1f = Answer?
A pole is supported by two wires, one on each side, going in opposite directions. The wires are 14 feet and 17 feet long. If the wires are to be secured to the ground 22 feet from each other, what angle must the 14-foot long wire make with the ground. Solve using law of cosins and sins
The angle that must the 14-foot long wire make with the ground = 50.6°
Consider the following diagram.
AC represents the pole.
AB represents the supporting wire of length 14 ft and AD is wire of length 17 ft.
The wires are to be secured to the ground 22 feet from each other.
BD = 22 ft
We need to find angle that must the 14-foot long wire make with the ground i.e., angle ACD
Using law of cosines,
c² = a² + b² - 2ab. cos(x)
where x = ∠ABD
c is the opposite side of angle x
a and b are adjacent sides of angle x
here, c = 17, a = 14, and b = 22
Substitute these values in above formula,
17² = 14² + 22² - 2(14)(22). cos(x)
289 = 196 + 484 - 616 cos(x)
-391 = -616 cos(x)
cos(x) = (391/616)
x = arccos(391/616))
x = 50.6°
Therefore, the required angle is 50.6°
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central africans learned long ago to use observations of the waxing crescent moon (once each month) to predict when the rainy season was coming. use the graph for central africa. in what month(s) does this region get about 200 millimeters of rainfall?
By using the graph, we can determine that Central Africa receives about 200 millimeters of rainfall in the months indicated by the highest points on the graph.
A graph is a visual representation of data that shows the relationship between two or more variables.
The graph shows the amount of rainfall in millimeters that Central Africa receives each month. By looking at the graph, we can see that the highest amount of rainfall is around 200 millimeters. The months in which Central Africa receives approximately 200 millimeters of rainfall are indicated by the highest points on the graph.
To determine the exact month or months in which Central Africa receives about 200 millimeters of rainfall, we need to look at the axis that represents the amount of rainfall. The vertical axis shows the amount of rainfall in millimeters, and the horizontal axis shows the months of the year.
To determine the month or months in which Central Africa receives about 200 millimeters of rainfall, we need to look for the points on the graph that are closest to 200 millimeters on the vertical axis.
These points will correspond to the months in which Central Africa receives about 200 millimeters of rainfall.
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diring the cold winters a lake near the srtic circle at the beggining of spring the icestarts to melt
Answer:
During winter in the Arctic, a lake gets frozen solid with ice. But as spring comes, the ice starts to melt. This happens because the temperature gets warmer and there's more sunlight. It's a natural process that happens every year and shows the change of seasons.
Step-by-step explanation:
-A student is chosen randomly from the group. What is the probability that the student ONLY takes History Class?
-A student is chosen randomly from the group. What is the probability that the student takes BOTH History and Biology?
-A student is chosen randomly from the group. What is the probability that the student does NOT take History or Biology?
-A student is chosen randomly from the group. What is the probability that the student takes Biology class?
Help me, please
The probabilities are given as follows:
Only history: 0.17 = 17%.Both history and biology: 0.25 = 25%.Not history and not biology: 0.37 = 37%.Biology: 0.46 = 46%.How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.
The total number of students in the problem is given as follows:
17 + 25 + 21 + 37 = 100.
Hence the probabilities are given as follows:
Only history: 17/100 = 0.17 = 17%.Both history and biology: 25/100 = 0.25 = 25%.Not history and not biology: 37/100 = 0.37 = 37%.Biology: (25 + 21)/100 = 46/100 = 0.46 = 46%.More can be learned about probability at https://brainly.com/question/24756209
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A car travels at a constant speed of 112 km per hour. Calculate how far the car will travel in 15 minutes.
The distance, that car will travel in 15 minute, is 28 km.
What is speed, distance and time?The formula used to explain the relationship between speed, distance, and time is speed distance time.
That is speed = distance/ time
So, distance = speed * time
Alternatively, you can calculate the time by dividing the distance traveled by the speed. You can figure out the third input if you know two of the inputs.
Given Speed of car = 112 km per hour
Time = 15 minutes = 15/60 hour
Time = 1/4 hour
Distance traveled by car in 15 minute = Speed of car * time
Distance = 112 * 1/4
Distance = 28 km
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The hypotenuse of a right triangle has the length of 50 units, and the longer leg of the triangle has a length of 40 units. What is the length of the projection of the shorter leg on the hypotenuse?
In a right triangle the length of the projection of the shorter leg on the given hypotenuse is equal to 18 units.
In a right triangle ,
length of the hypotenuse = 50 units
length of the longer leg is equal to 40 units
let us consider 'x' be the length of the another leg of right triangle.
Using Pythagoras theorem ,
Hypotenuse² = Base² + Altitude²
⇒ 50² = x² + 40²
⇒ x² = 2500 -1600
⇒ x = 30
Let 'y' be the length of the projection of shorter leg on the hypotenuse
Triangle formed by projected line segment and given right triangle are similar.
Using property of similar triangles corresponding sides are in proportion,
30 / 50 = y / 30
⇒ 50 y = 30 × 30
⇒ y= 900 / 50
⇒ y= 18units
Therefore, the length of the projected leg on hypotenuse of the right triangle is 18 units.
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19. A savings account earns 4% annual simple interest.The principal is $1700. What is the balance after 6
years?
The balance after 6 years is $2108.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that savings account earns 4% annual simple interest.
The principal is $1700.
We need to find the balance after 6 years.
The formula for simple interest I=Prt
I = interest
P = principal ($1700)
r = annual interest rate (4%)
t = time in years (6)
So the interest earned in 6 years is:
I = 1700× 4×6 / 100 = $408
The balance after 6 years is the sum of the principal and the interest earned:
1700 + 408 = $2108.
Hence, the balance after 6 years is $2108.
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The scatter plot shows the number of hours worked x and the earnings y (in dollars) of a food server
a) The number of hours the server must work to earn $35 is of: 2.5 hours.
b) The earnings for five hours of work are given as follows: $75.8.
c) As the number of hours worked increases, the earnings also increase.
How to find the equation of linear regression?To find the regression equation, also called line of best fit or least squares regression equation, we need to insert the points (x,y) in the calculator. These points are given on a table or in a scatter plot in the problem.
The points for this problem are given as follows:
(1,10), (2, 27), (3, 45), (4, 55) and (5, 78).
Inserting these points into a calculator, the equation is given as follows:
y = 16.4x - 6.2.
Hence the number of hours needed to earn $35 is given as follows:
35 = 16.4x - 6.2
x = 41.2/16.4
x = 2.5 hours.
The earnings for five hours of work are given as follows:
y = 16.4(5) - 6.2
y = $75.8.
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3204x7756 to one significant figure
Answer:
20000000 (to 1 s.f.)
Step-by-step explanation:
3204×7756=24850224
=20000000 (to 1 s.f.)
a certain company's stock that you bought at IPO in 1998 quintupled in value every 9 years. You own a million dollars worth of the stock in 2016. how much will the stock be worth in 1998
The stock was worth 40000 dollars in 1998.
Describe stocks?Stocks, also known as equities, are securities that represent ownership in a corporation. The value of your stock holdings is directly tied to the performance of the company and its financial health.
There are two main types of stocks: common stocks and preferred stocks. Common stocks typically offer voting rights, while preferred stocks generally do not. Preferred stocks often offer a fixed dividend, while common stock dividends can vary.
Stocks are bought and sold on stock exchanges, such as the New York Stock Exchange (NYSE) and the NASDAQ.
The value of the stock quintupled every 9 years, which means it increased by a factor of 5 every 9 years. To find the value of the stock in 1998, we need to divide the value in 2016 by 5 raised to the power of the number of 9-year intervals that have passed.
Let's call the value of the stock in 2016 x. Then:
x = million dollars = 1000000
The number of 9-year intervals that have passed is (2016 - 1998) / 9 = 18 / 9 = 2
So, the value of the stock in 1998 is x / (5^2) = 1000000 / (5^2) = 1000000 / 25 = 40000.
Therefore, the stock was worth 40000 dollars in 1998.
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p to view steps... 9 p 2 − 1 p q − 2 q ÷ 1 − 3 p 3 p − 6 9 p 2 - 1 p q - 2 q ÷ 1 - 3 p 3 p - 6
By applying Algebraic fractions simplifying concept, it can conclude that the simplified expression is - (9p + 3) / q.
Algebraic fractions simplifying can be done by factoring the quantifier and denominator, then dividing by the common factors of the quantifier and denominator.
We have the following algebraic fraction:
((9p² - 1) / (pq - 2q)) / (1 - 3p) / (3p - 6)
To simplify this expression, we will do the following steps:
First, we apply the division rule: (a/b) / (c/d) = ad / bc:
((9p² - 1) / (pq - 2q)) / (1 - 3p) / (3p - 6)
⇔ ((9p² - 1) (3p - 6)) / ((pq - 2q) (1 - 3p))
Then we find the factors of (9p² - 1), that are (3p - 1) (3p + 1):
⇔ ((3p - 1) (3p + 1) (3p - 6)) / ((pq - 2q) (1 - 3p))
Factor other expressions that are not already factored in:
⇔ ((3p - 1) (3p + 1) 3 (p - 2)) / (q (p - 2) (1 - 3p))
Now we cancel the common factor (p - 2), so we have:
⇔ (3 (3p - 1) (3p + 1)) / (-q (3p - 1))
Then we cancel the common factor (3p -1), so we have:
⇔ (3 (3p + 1)) / -q
Finally, we expand the expression:
⇔ - (9p + 3) / q
Thus the simplified expression is - (9p + 3) / q.
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in a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. if a 56 millimeters and c = 65 millimeters, what is b? if necessary, round to the nearest tenth.
Answer:
b = 33 millimeters.
Step-by-step explanation:
In a right triangle, the Pythagorean theorem states that the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the legs (a and b). So, using a=56 and c=65, we can find b by solving the equation: 56^2 + b^2 = 65^2. This gives b = sqrt(1089) = 33 millimeters :)
Ryan is trying to start a new colony of ants. He starts with 12 ants and know the number of ants will will triple each day write a function using function notation which can be used to determine the number of ants Ryan will have in x number days.
The function to determine the number of ants Ryan will have in x number of days can be represented as: f(x) = 12 * 3^x
How to calculate the valueIt should be noted that a function shows the relationship between the variables that are provided or the data given regarding an information. In this case, it is vital to note that they have at least two terms which have to be related by through an operator.
The function to determine the number of ants Ryan will have in x number of days can be represented as:
f(x) = 12 * 3^x
where f(x) is the number of ants after x days, and 3^x represents the tripling of the number of ants each day.
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For each question on a test you get right you earn 1 point. For each question you get wrong you lose 2 points. Mark got 7 questions incorrect. How many points did he loose?
Answer:
mark score is minus 14
7multiply minus 2
Answer:
14
Step-by-step explanation:
Is the answer correct if not tell me what is the correct answer WILL GIVE BRAINLIEST TO CORRECT ANSWER
Triangle STV is congruent to triangle UTW by SSS congruence postulate
What is SSS congruence postulate?SSS congruence postulate is a statement in geometry that says if three sides of one triangle are equal in length to the corresponding three sides of another triangle, then the two triangles are congruent.
In other words, if the lengths of the sides of two triangles are the same, then the triangles are the same shape and size. The acronym SSS stands for "side-side-side."
Corresponding Parts of Congruent Triangles are Congruent is abbreviated as CPCTC.
According to the CPCTC theorem, every corresponding component of one triangle is congruent to the other when two triangles are congruent.
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Which point satisfies the system of equations?
y =
y =
(²)x - 11/12
2
(3) ₁
OA. (-2, 3)
O B. (-1,0)
O C. (1, 2)
OD. (3,-2)
X
The most correct answer is D ( 3,-2) . Because in the 2 equations above when you enter the value x= 3 in equation I and II, it produces y=-2.
Find the x and y values that satisfy the equationIn the question above, there are two equations.
y=-(½)x - ½ (eq I)
y=-(⅔)x (eq II)
To find which x and y values satisfy these two equations in options A,B,C,D, we have to substitute one by one to prove:
A.(-2, 3)
we substitute the value x=-2 into equation I
y=-(½)x - ½
y= -(½) (-2) -½
y=1-½
y= ½ ( This means that option A is not valid, because it should give y a value of 3)
B.(-1,0)
we substitute the value x=-1 into equation I
y=-(½)x - ½
y= -(½) (-1) -½
y= ½ - ½
y= 0
Then, we try to substitute the value x=-1 into equation II
y=-(⅔)x
y= -(⅔) (-1)
y= ⅔ ( This means option B is not valid, because it should result in y being 0)
C.(1, 2)
we substitute the value x=1 into equation I
y=-(½)x - ½
y= -(½) (1) -½
y= -½ - ½
y= -1 ( This means option C is not valid, because it should result in y being 2)
D. (3,-2)
we substitute the value x=3 into equation I
y=-(½)x - ½
y= -(½) (3) -½
y= -3/2- ½
y=-4/2
y= -2
Then, we try to substitute the value x=3 into equation II
y=-(⅔)x
y= -(⅔) (3)
y=-2
The option D satisfies equations I and II,
Therefore the answer is option D.
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