Answer:
48 litres...
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8(3x-2)=2(8)+16 explanation how the order of operations is used. How the equation is kept balanced.
Answer:
See explanation
Step-by-step explanation:
Given;
8(3x-2)=2(8)+16
We clear the brackets
24x - 16 = 16 + 16
24x - 16 = 32
We add 16 to both sides
24x - 16 + 16= 32 + 16
24x = 48
We divide both sides by 24
24x/24 = 48/24
x =2
Solve the following equation: 3.3+4x=-6.9x+6.6
Round your answer to the nearest tenth.
The solution to the equation 3.3 + 4x = -6.9x + 6.6, rounded to the nearest tenth, is x ≈ 0.3.
To solve the equation 3.3 + 4x = -6.9x + 6.6, we need to isolate the variable x on one side of the equation.
First, let's simplify the equation by combining like terms:
3.3 + 4x = -6.9x + 6.6
Next, let's move the variable terms (4x and -6.9x) to one side and the constant terms (3.3 and 6.6) to the other side:
4x + 6.9x = 6.6 - 3.3
Combine the x terms on the left side:
10.9x = 3.3
Now, divide both sides of the equation by 10.9 to solve for x:
x = 3.3 / 10.9
Using a calculator, we can find the decimal approximation of x:
x ≈ 0.3028
Rounding to the nearest tenth, the solution to the equation is x ≈ 0.3.
In summary, the solution to the equation 3.3 + 4x = -6.9x + 6.6, rounded to the nearest tenth, is x ≈ 0.3.
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Consider a population of wildflowers in which the frequency of the red allele cr is p = 0.7.
The wildflowers in this population, the white allele is present in about 30% of the individuals, while the red allele is present in about 70% of the individuals.
The frequency of the white allele (CW) in the population can be determined by subtracting the frequency of the red allele (CR) from 1, since the frequencies of all alleles in a population must add up to 1.
So, the frequency of the white allele (CW) can be calculated as follows:
CW = 1 - CR
Given that the frequency of the red allele (CR) is p = 0.7, we can substitute this value into the equation:
CW = 1 - 0.7
= 0.3
Therefore, the frequency of the white allele (CW) in this population is 0.3.
In genetic terms, alleles are alternative forms of a gene, and the frequencies of different alleles within a population can be used to study genetic variations. In this case, we are considering a population of wildflowers and examining the frequencies of the red allele (CR) and white allele (CW).
The total frequency of alleles in a population is always 1 since each individual carries two alleles (one from each parent). Therefore, the frequency of the white allele can be obtained by subtracting the frequency of the red allele (0.7 or 70%) from 1. This is because the sum of the frequencies of all alleles must equal 1.
By performing the calculation, we find that the frequency of the white allele in this population is 0.3 or 30%.
This means that among the wildflowers in this population, the white allele is present in about 30% of the individuals, while the red allele is present in about 70% of the individuals.
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Complete Question
Consider a population of wildflowers in which the frequency of the red allele CR is p = 0.7.
What is the frequency of the white allele (CW ) in this population?
Complete the factor pairs of 12. 12 = 1.12 12 11 ? OOOOOO ODOOD 12 = 3.4 CADOU COD KOD DO DE
For the factors we have to multiply the columns by the rows:
12 = 2 x 6
Please help...a counselor wishes to examine the benefits of a parenting class on parenting
skills. he decides to administer a questionnaire to the 10 parents who have
attended the most recent class. how could this study be improved?
select all that apply.
a. administer a questionnaire to parents who have not attended the
class.
b. use a random sample of all patients, who have attended the
class.
c. increase the sample size.
d. give parents some sample responses, prior to administering the
questionnaire.
Zora saved of her paycheck and to that she added $25.30. If the total that went into her savings was $101.68, what was the amount of Zora's paycheck?
The food company is now designing soup cans. They currently make a large can of soup that holds 24oz of soup. They would like to make a single serve can that holds only 8oz of soup. The large can has a surface area of 100.48in². What will the new single serving surface area be? Explain or show your reasoning.
The surface area of the new single-serving soup can, with a volume ratio of 24:8, will be approximately 11.164 square inches.
To determine the surface area of the new single-serving soup can, we can use the concept of ratios and proportions.
Let's assume the radius of the large can is represented by R and the radius of the single-serving can is represented by r.
The volume of a cylinder can be calculated using the formula V = πr^2h, where V is the volume, r is the radius, and h is the height.
We know that the large can has a volume of 24oz, so we have:
24 = πR^2h
Now, we need to find the height of the single-serving can. Since the large can and the single-serving can have the same height (we assume), we can set up a ratio of their volumes:
24/8 = πR^2h / πr^2h
Simplifying the equation, we have:
3 = (R^2h) / (r^2h)
Since the height cancels out, we can rewrite the equation as:
3 = R^2 / r^2
To find the ratio of the surface areas, we square both sides of the equation:
9 = (R^2 / r^2)^2
Now, we can find the surface area ratio:
100.48 / A = 9
Solving for A (the surface area of the single-serving can), we have:
A = 100.48 / 9
Calculating the value, we find that the new single-serving surface area will be approximately 11.164 in².
Therefore, the new single-serving soup can will have a surface area of approximately 11.164 square inches.
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Your friend tells you that he just bought a new set of speakers for his stereo system that cost 3 times as much as his former speakers. When asked if the new speakers are 3 times better he says no. So, why did he buy them
There could be several reasons why your friend bought the new set of speakers that cost three times as much as his former speakers. One reason could be that the new speakers have different features or specifications that he wanted, such as higher wattage, improved sound quality, or better frequency response. Another reason could be that he wanted to upgrade his stereo system and felt that investing in new speakers would be a good place to start. Additionally, he may have purchased the new speakers as a status symbol or simply because he had the extra money to spend. Ultimately, the decision to buy new speakers is a personal one and can depend on a variety of factors beyond just the cost or perceived quality of the speakers.
Although the new speakers might not be 3 times better, he could have bought them for various reasons such as improved sound quality, better design or aesthetics, compatibility with his current stereo system, or additional features that the former speakers did not have. The overall value of the new speakers might be greater than the cost difference for your friend.
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A skate park is 24 yards wide by 48 yards long. If we used scale of 1 inch = 32 yards, what is the width and length of the scale drawing?
Answer:
0.75
Step-by-step explanation:
use the scale to get the width
Determine if the situation can be modeled by a linear function or an exponential function: Sarah's fees decrease by $5 each time she visits the chiropractor
The situation described can be modeled by a linear function.
In a linear function, the relationship between the variables is constant and can be represented by a straight line on a graph. In this case, as Sarah's visits to the chiropractor increase, her fees decrease by a fixed amount of $5 each time. This means that there is a constant rate of change between the number of visits and the corresponding decrease in fees.
Let's say the number of visits is represented by the variable 'x' and the fees by the variable 'y'. The relationship can be expressed as:
y = mx + b
Where 'm' represents the rate of change (in this case, -5 because the fees decrease by $5) and 'b' represents the initial fee or the y-intercept.
Therefore, the situation of Sarah's fees decreasing by $5 each time she visits the chiropractor can be modeled by a linear function.
in a class of 25 students 15 have cats 16 have dogs 3 have neither.
find the probability a student chosen from random has a cat and a dog
Answer:
9/25
Explanation:
If 3 have neither cats or dogs, then you can subtract 3 from 25, which is equal to 22.
Next, you can also subtract 15 from 22. What do you get? 7.
Now, subtract 7 from 16 to find how many people in the class have both cats and dogs. The answer is 9. That is the numerator.
Finally, put 25 under 9, since that is the total number of people.
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If cosA = 24/25 tanB = 4/3 and angles A and B are in Quadrant I, find the value of tan(A−B).
If cosA = 24/25 tanB = 4/3 and angles A and B are in Quadrant I. The value of tan(A-B) is -23/33.
What is the value of tan(A-B)?We can start by using the identity: tan(A - B) = (tan A - tan B)/(1 + tan A tan B)
From the given information, we have:
cos A = 24/25, which means sin A = sqrt(1 - cos^2 A) = 7/25 (since A is in Quadrant I)
tan B = 4/3, which means sin B = 4/sqrt(4^2 + 3^2) = 4/5 and cos B = 3/sqrt(4^2 + 3^2) = 3/5
Now, we can use the definitions of sine and cosine to find tan A:
tan A = sin A / cos A = (7/25)/(24/25) = 7/24
Substituting the values we have found into the formula for tan(A - B), we get:
tan(A - B) = (tan A - tan B)/(1 + tan A tan B)
= [(7/24) - (4/3)]/[1 + (7/24)(4/3)]
= (-13/72)/(25/72)
= -13/25
Therefore, tan(A - B) = -13/25.
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Please help! Correct answer only please! I need to finish this assignment by today.
One morning, boats from all along the Atlantic coast docked at a busy marina.
What is the experimental probability that the next boat to dock will be from Rhode Island?
Simplify your answer and write it as a fraction or whole number.
P(Rhode Island) =
Answer:
1/4
Step-by-step explanation:
there are 24 boats in total. out of those 24 boats, six are from rhode island. so 6/24 boats are from rhode island. simplified it will be 1/4 :)
what is the equation in slope intercept form if slope is two and the y intercept is (0,3)
Answer:
y= 2x +3
Step-by-step explanation:
Slope-intercept form
y= mx +c, where m is the slope and c is the y-intercept.
Given that the slope is 2, m= 2.
Substitute m= 2 into the equation:
y= 2x +c
Given that the y-intercept is (0, 3), c= 3.
Substitute c= 3 into the equation:
y= 2x +3
Thus, the equation of the line is y= 2x +3.
Answer: y=2x-3
Step-by-step explanation:
Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 14 feet and a height of 18 feet. Container B has a diameter of 18 feet and a height of 15 feet. Container A is full of water and the water is pumped into Container B until Container A is empty.
After the pumping is complete, what is the volume of the empty portion of Container B, to the nearest tenth of a cubic foot?
Answer:
First, let's calculate the volume of water that was transferred from Container A to Container B.
The formula for the volume of a cylinder is V = πr^2h, where r is the radius of the cylinder and h is the height.
For Container A:
radius = diameter/2 = 14/2 = 7 feet
height = 18 feet
V_A = π(7)^2(18) ≈ 2,443.96 cubic feet
For Container B:
radius = diameter/2 = 18/2 = 9 feet
height = 15 feet
V_B = π(9)^2(15) ≈ 3,817.01 cubic feet
So the volume of water transferred from Container A to Container B is:
V_water = V_A ≈ 2,443.96 cubic feet
After the transfer, Container B contains both the water that was originally in Container B and the water transferred from Container A. The total volume of water in Container B is:
V_total = V_B + V_water ≈ 6,261.97 cubic feet
To find the volume of the empty portion of Container B, we need to subtract the volume of the water from the total volume of Container B:
V_empty = V_B - V_water ≈ 3,817.01 - 2,443.96 ≈ 1,373.05 cubic feet
So the volume of the empty portion of Container B is approximately 1,373.05 cubic feet.
Answer:
1501.7 ft
DELATAMATH
Step-by-step explanation:
Does the system have a no solution or infinitely many solutions
Y=2/3x+2-2x+3y=6
Answer:
answer for y=2/3x+2: y=2/3x+2
answer for -2x+3y=6: x=3/2y-3
pls give brainliest
Answer:
There are infinitely many solutions.
Step-by-step explanation:
There are infinitely many solutions because if you solve the equations, you will find that both of the equations are actually the same, so there is infinitely many solutions.
Showing that both equations are equal: y=2/3x+2 -2x+3y=6
y=2/3x+2 Multiply by 3 on both sides
3y=2x+6 Rearrange (-2x on both sides)
3y-2x=6 More rearrangement
-2x+3y=6 Now, if you look back at the second equation, you will see that they are both the same.
( pls answer if u know)
A. -2/3
B. -3/2
C. 2/3
D. 3/2
Answer:
your answer would be B I hope it's right
Answer:
B)
Step-by-step explanation:
I hope this helps:)
1. Which equation represents a line that is perpendicular to the line represented by 2x - y =7
The equation that represents a line that is perpendicular to the line represented by 2x - y = 7 is y = -1/2x + 6
Equation of a lineThe equation of a line in slope-intercept form is expressed as;
y = mx + b
where;
m is the slope
b is the y-intercept
For two lines to be perpendicular, the product of their slope must be -1
Given the equation 2x - y =7
Rewrite
y = 2x - 7
The slope of the line is 2, the slope of the line perpendicular must be -1/2. Hence from the given option, the equation that represents a line that is perpendicular to the line represented by 2x - y = 7 is y = -1/2x + 6
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Anica volunteers to fold T-shirts she fold 8 T-shirts every 6 minutes how many t-shirts will anica make in 45 minutes
Answer:
I think 60
Step-by-step explanation:
I divided 45 by 6, and then multiplied that answer by 8. I hope this helps :) (Tell me if I am wrong)
The Answer Should Be 5 Minutes!
I Hope This Helps You!!!
Natalie has 30 pens, charlie has 20% fewer, even has half of the amount of pens charlie has. How many pens does even have?
Answer:
Even has 12 pens
Step-by-step explanation:
Charlie has 24 pens
Answer:
3 pens
Step-by-step explanation:
20% of 30 is 6. 6 divided by 2 is 3.
Classified ads in a newspaper offered for sale 20 used cars of the same make and model. The output of a regression analysis is given. Assume all conditions for regression have been satisfied. Create a 95% confidence interval for the slope of the regression line and explain what your interval means in context. Find the 95% confldence interval for the slope. The confidence interval is (Round to two decimal places as needed.)
Confidence interval refers to a statistical measure that helps quantify the amount of uncertainty present in a sample's estimate of a population parameter.
This measure expresses the degree of confidence in the estimated interval that can be calculated from a given set of data. In this scenario, the task is to build a 95% confidence interval for the regression line's slope. The regression analysis output has already been given. According to the output given, the estimated regression model is:y = 25,000 + 9,000 x, where x represents the number of miles the car has been driven and y represents the car's selling price.
The formula to calculate the 95% confidence interval for the slope is:Slope ± t · SE, where Slope is the point estimate for the slope, t represents the critical t-value for a given level of confidence and degrees of freedom, and SE represents the standard error of the estimate. The value of t can be calculated using the degrees of freedom and a t-table. Here, the number of pairs in the sample size is 20, and the model uses two parameters.
Therefore, the degrees of freedom would be 20 - 2 = 18.The critical t-value for a 95% confidence interval and 18 degrees of freedom is 2.101. Using the formula given above, we can calculate the 95% confidence interval for the slope as follows:Slope ± t · SE= 9000 ± (2.101)(700) ≈ 9000 ± 1,467.7 = [7,532.3, 10,467.7]Therefore, the 95% confidence interval for the slope is [7,532.3, 10,467.7]. This means that we are 95% confident that the true value of the slope for this model falls within the interval [7,532.3, 10,467.7].
It implies that the price of the car increases by $7,532.3 to $10,467.7 for each mile driven by the car. In conclusion, a 95% confidence interval has been calculated for the regression line's slope, which indicates that the actual slope of the model lies between the range [7,532.3, 10,467.7].
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Write the other side of this equation so it has MANY solutions.
6x - 5 =
Answer:
6x - 5 = 6x - 5
Step-by-step explanation:
If we have the same quantity on both sides of the equation, then the equation becomes an identity — an equation that is true for any value of the present variables.
If we set 6x - 5 equal to 6x - 5, then there are infinite solutions.
For example,
when x is 3:
6(3) - 5 = 6(3) - 5
18 - 5 = 18 - 5
13 = 13 ✔
when x is 5:
6(5) - 5 = 6(5) - 5
30 - 5 = 30 - 5
25 = 25 ✔
MATH SUFACE AREA OF PYRAMIDS
WILL GIVE YOU MY LAST 10 POINTS!!!! AND BRAINLYIST!!
Step-by-step explanation:
the surface areas are always the sum of the areas of the individual sides and base area.
so, all we need to do here is calculating the areas of triangles, rectangles (actually squares) and a hexagon.
the area of a triangle is
baseline × height / 2
or with Heron's formula when we have all sides
s = (a+b+c)/2
area = sqrt(s×(s-a)×(s-b)×(s-c))
the area of a rectangle is
length × width
for a square that is then
side × side = side²
and the area of a regular hexagon can be created again as sum of multiple sub-shapes. but ultimately it is
3 × sqrt(3) × side² / 2
1.
square base area : 10×10 = 100 cm²
lateral areas :
one triangle is 10×13/2 = 65 cm²
4 triangles are then 4×65 = 260 cm²
total surface area :
100 + 260 = 360 cm²
2a.
3 lateral triangles :
3 × 8×10/2 = 120 units²
base area (Heron's, as all 3 sides are 8 units) :
s = 3×8/2 = 12
area = sqrt(12×4×4×4) = sqrt(3×4×4×4×4) = 16×sqrt(3)
total surface area :
120 + 16×sqrt(3) = 147.7128129... units²
2b.
4 lateral triangles :
4 × 8×10/2 = 160 units²
base area : 8×8 = 64 units²
total surface area :
160 + 64 = 224 units²
2c.
6 lateral triangles :
6 × 8×20/2 = 480 units²
base area :
3×sqrt(3)×8²/2 = 96×sqrt(3)
total surface area :
480 + 96×sqrt(3) = 646.2768775... units²
2d.
base area : 16² = 256 units²
4 lateral triangles. but we need to get their height first.
Pythagoras :
(16/2)² + 24² = height²
8² + 24² = height²
64 + 576 = height²
height² = 640
height = sqrt(640) = sqrt(64×10) = 8×sqrt(10)
4 triangles are
4 × 16×8×sqrt(10)/2 = 256×sqrt(10) units²
total surface area :
256 + 256×sqrt(10) = 256×(1 + sqrt(10) = 1,065.543081... units²
Area of a Rectangle
A rectangle hasa length of 2 centimeters and act of
18 centimetas What is the area of the rectangle in square meters
Emination Tool
Let X be normal with mean 3.6 and variance 0.01. Find C such that P(X<=c)=5%, P(X>c)=10%, P(-c
Answer: We can solve this problem using the standard normal distribution and standardizing the variable X.
Let Z be a standard normal variable, which is obtained by standardizing X as:
Z = (X - μ) / σ
where μ is the mean of X and σ is the standard deviation of X.
In this case, X is normal with mean μ = 3.6 and variance σ^2 = 0.01, so its standard deviation is σ = 0.1.
Then, we have:
Z = (X - 3.6) / 0.1
To find C such that P(X <= c) = 5%, we need to find the value of Z for which the cumulative distribution function (CDF) of the standard normal distribution equals 0.05. Using a standard normal table or calculator, we find that:
P(Z <= -1.645) = 0.05
Therefore:
(X - 3.6) / 0.1 = -1.645
X = -0.1645 * 0.1 + 3.6 = 3.58355
So C is approximately 3.5836.
To find C such that P(X > c) = 10%, we need to find the value of Z for which the CDF of the standard normal distribution equals 0.9. Using the same table or calculator, we find that:
P(Z > 1.28) = 0.1
Therefore:
(X - 3.6) / 0.1 = 1.28
X = 1.28 * 0.1 + 3.6 = 3.728
So C is approximately 3.728.
To find C such that P(-c < X < c) = 95%, we need to find the values of Z for which the CDF of the standard normal distribution equals 0.025 and 0.975, respectively. Using the same table or calculator, we find that:
P(Z < -1.96) = 0.025 and P(Z < 1.96) = 0.975
Therefore:
(X - 3.6) / 0.1 = -1.96 and (X - 3.6) / 0.1 = 1.96
Solving for X in each equation, we get:
X = -0.196 * 0.1 + 3.6 = 3.5804 and X = 1.96 * 0.1 + 3.6 = 3.836
So the interval (-c, c) is approximately (-0.216, 3.836).
Answer:
This is not possible, since probabilities cannot be negative. Therefore, there is no value of e that satisfies the given condition
Step-by-step explanation:
We can use the standard normal distribution to solve this problem by standardizing X to Z as follows:
Z = (X - μ) / σ = (X - 3.6) / 0.1
Then, we can use the standard normal distribution table or calculator to find the values of Z that correspond to the given probabilities.
P(X <= c) = P(Z <= (c - 3.6) / 0.1) = 0.05
Using a standard normal distribution table or calculator, we can find that the Z-score corresponding to the 5th percentile is -1.645. Therefore, we have:
(c - 3.6) / 0.1 = -1.645
Solving for c, we get:
c = 3.6 - 1.645 * 0.1 = 3.4355
So, the value of c such that P(X <= c) = 5% is approximately 3.4355.
Similarly, we can find the value of d such that P(X > d) = 10%. This is equivalent to finding the value of c such that P(X <= c) = 90%. Using the same approach as above, we have:
(d - 3.6) / 0.1 = 1.28 (the Z-score corresponding to the 90th percentile)
Solving for d, we get:
d = 3.6 + 1.28 * 0.1 = 3.728
So, the value of d such that P(X > d) = 10% is approximately 3.728.
Finally, we can find the value of e such that P(-e < X < e) = 90%. This is equivalent to finding the values of c and d such that P(X <= c) - P(X <= d) = 0.9. Using the values we found above, we have:
P(X <= c) - P(X <= d) = 0.05 - 0.1 = -0.05
This is not possible, since probabilities cannot be negative. Therefore, there is no value of e that satisfies the given condition
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Hugo says that some whole numbers have no common factors. Jasmine says any two whole numbers will always have at least one common factor. Who is correct? Explain.
Answer:
Jasmine is correct
Step-by-step explanation:
The reason why Jasmine is correct is because, for all whole numbers, there must be a common factor of 1.
So since 1 is a factor of all whole numbers, it means that all numbers have a factor in common which is 1
We can thus conclude that all whole numbers( integers) must have at least one common factor which is 1
The U. S. Government orders a company that has 80% of the computer software market to split itself into 4 separate operating companies, that have the right to compete with each other. This is a:
The U.S. government's order to a corporation that controls 80% of the computer software market to split itself into four different operating companies that have the right to compete with one another is an instance of antitrust legislation.
Antitrust legislation is a federal government attempt to control the growth of monopolies and prevent them from having complete control over a market or sector. Monopolies are detrimental to customers because they restrict innovation, raise prices, and restrict output to increase profits.The U.S. government orders a company that has 80% of the computer software market to split itself into 4 separate operating companies that have the right to compete with each other is an example of antitrust legislation being enforced. When a corporation controls such a large portion of the market, it becomes difficult for new businesses to emerge, limiting innovation and the introduction of new products. As a result, the government enforced antitrust legislation to reduce the size of a business and promote competition between companies.
Antitrust laws in the United States are rules that promote competition in the marketplace by preventing monopolies. These are laws created by the U.S. government to protect customers and foster a competitive environment that encourages innovation, improves quality, and lowers prices. A monopoly is defined as a business that controls the majority of a market, which can be problematic for customers because it prevents the introduction of new products, decreases quality, and raises prices.The government enforces antitrust laws to keep monopolies in check. The government uses a variety of methods to prevent monopolies from forming or growing too big. The most common approach is to prevent mergers and acquisitions, as well as forcing the breakup of a company that has achieved a monopoly or has become too large.In the case mentioned in the question, the U.S. government is enforcing antitrust laws by ordering a corporation that controls 80% of the computer software market to break itself into four different operating companies. This allows each of the four companies to compete against one another in the market. This allows for greater innovation, better quality, and lower prices. As a result, the enforcement of antitrust laws in this case is an essential way to promote competition, stimulate innovation and keep prices down.
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Amy now earns $9.50 per hour. This is 125% of
what she earned last year. What did she earn per
hour last year?
answer:
$9.50 = 125% * (last years hourly wage)
$9.50 = 1.25*X
9.50/1.25 = X
$7.60 = X
she earned $7.60 per hour last year!
What is the image of the point (8,9) after a rotation of 180 degrees?
Answer:
(-8,-9)
Step-by-step explanation:
20 POINTS
PLEASE HELP!
Find the slope of the line that passes through the pair of points.
(4, –4), (6, –4)
Answer:
0
Step-by-step explanation: