A quadrilateral has vertices at A(-5,5), B(1,8), C(4,2), and D(-2,-2). Use slope to determine if the quadrilateral is a rectangle. Show your work.

Answers

Answer 1

Answer:

The quadrilateral is not a rectangle

Step-by-step explanation:

we know that

If a quadrilateral ABCD is a rectangle

then

Opposite sides are congruent and parallel and adjacent sides are perpendicular

Remember that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

The formula to calculate the slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

we have

A(-5,5), B(1,8), C(4,2), and D(-2,-2)

Plot the figure to better understand the problem

see the attached figure

Find the slope of the four sides and then compare

step 1

Find slope AB

A(-5,5), B(1,8)

substitute in the formula

[tex]m=\frac{8-5}{1+5}[/tex]

[tex]m=\frac{3}{6}[/tex]

[tex]m_A_B=\frac{1}{2}[/tex]

step 2

Find slope BC

B(1,8), C(4,2)

substitute in the formula

[tex]m=\frac{2-8}{4-1}[/tex]

[tex]m=\frac{-6}{3}[/tex]

[tex]m_B_C=-2[/tex]

step 3

Find slope CD

C(4,2), and D(-2,-2)

substitute in the formula

[tex]m=\frac{-2-2}{-2-4}[/tex]

[tex]m=\frac{-4}{-6}[/tex]

[tex]m_C_D=\frac{2}{3}[/tex]

step 4

Find slope AD

A(-5,5), D(-2,-2)

substitute in the formula

[tex]m=\frac{-2-5}{-2+5}[/tex]

[tex]m=\frac{-7}{3}[/tex]

[tex]m_A_D=-\frac{7}{3}[/tex]

step 5

Verify if the opposites are parallel

Remember that

If two lines are parallel, then their slopes are the same

The opposite sides are

AB and CD

BC and AD

we have

[tex]m_A_B=\frac{1}{2}[/tex]

[tex]m_C_D=\frac{2}{3}[/tex]

so

[tex]m_A_B \neq m_C_D[/tex]

It is not necessary to continue verifying, because two of the opposite sides are not parallel

therefore

The quadrilateral is not a rectangle

A Quadrilateral Has Vertices At A(-5,5), B(1,8), C(4,2), And D(-2,-2). Use Slope To Determine If The

Related Questions

convert 300 grams into kilograms ​

Answers

Hey!

-------------------------------------

Solution:

1 gram = 0.001 kilogram's

300 * 0.001 = 0.3

-------------------------------------

Answer:

300 grams = 0.3 kilograms

-------------------------------------

Hope This Helped! Good Luck!

In order to get the answer to this question you will have to know that 1 gram equals 0.01 kilograms.

[tex]1=0.01[/tex]

[tex]100=0.1[/tex]

[tex]300=0.3[/tex]

[tex]=0.3[/tex]

Therefore your answer is "0.3 kilograms."

Hope this helps

A swimming pool has 500 gallons of water in it and is leaking. The change in the amount of water in the pool is -3 gallons per hour. How many gallons of water will the pool contain after 6 hours?​

Answers

Answer:it will be -18 gallons

Step-by-step explanation:

Answer:

482 gallons

Step-by-step explanation:

if the total amount in the pool is 500 gallons and it is leaking at -3 gallons per hour then we can solve for how much it has lost in 6 hours by using this equation:

-3(amount loss per hour) x 6(number of hours)= -18

Now we do 500(total)-18(amount lost in 6 hours)= 482 gallons

Which means there are 482 gallons of water left after 6 hours.

What is the range of this function?

Answers

The range of the function is A



Use the graph shown to fill in the blank.

When x = 1, then y = a0.

Answers

Answer:

When x=1 then the value of y=-2.

Step-by-step explanation:

We are given that a line  on the graph

We have to find the value of  y when x=1

From given graph, the line intersect the x- axis x=3 .Therefore, the point is (3,0).The line intersect y- axis at -3 .Therefor, the point is (0,-3).

We can see that the line passing from (3,0),(2,-1),(1,-2) and (0,-3).

When x=1 then the value of y=-2.

Hence, y=-2 when x=1

Answer:

the correct answer is -2

Step-by-step explanation:

hope this helps

The circumference of a circle is 32 centimeters. Which is closest to the radius? A. 10.2 centimeters B. 5.1 centimeters C. 16 centimeters D. 5.3 centimeters

Answers

The answer is B 5.1 cm

Answer:

B.5.1 cm

Step-by-step explanation:

Hello, I think I can help you with this

the circumference of a circle is given by:

[tex]s=2*\pi *radius[/tex]

Step 1

Let

s=32 cm

radius=?

isolate the radius from the equation

[tex]s=2*\pi *radius\\\frac{s}{2\pi } =radius\\s=32,so\\radius=\frac{32}{2\pi } \\radius=5.1\ cm[/tex]

5.1 cm ⇔B.

I hope it helps ,Do not hesitate to ask me any questions about it. Have a fantastic day


The point (-3, 4) is on the line x+4y=13.

Answers

Answer:

yes

Step-by-step explanation:

To determine if the point lies on the line substitute the coordinates into the left side of the equation and if equal to the right side then the point lies on the line

- 3 + (4 × 4) = - 3 + 16 = 13 = right side

Hence (- 3, 4) lies on the line x + 4y = 13

What are the factors of 60

Answers

Answer : 1,2,3,4,5,6,10,12,15,20,30,60,

Hope this helped you! Enjoy! :)

What is 0.42 rounded to the hundredths place

Answers

Answer:There is no need for rounding because 2 is the hundredths place so it's still 0.42

Step-by-step explanation:

Answer:

0.42 is rounded to 0.40

(15+70-5 2) divided by (36-6)

Answers

Hey!

-----------------------------------------------

Solution:

[tex]= \frac{(15 + 70 - 5^2)}{(36-6)}[/tex]

[tex]= \frac{(15+70-25)}{30}[/tex]

[tex]= \frac{85 - 25}{30}[/tex]

[tex]= \frac{60}{30}[/tex]

[tex]= 2[/tex]

-----------------------------------------------

Answer:

2

-----------------------------------------------

Hope This Helped! Good Luck!

A small transport truck can carry about 200 pounds of fruits and vegetables. How many ounces of fruits and vegetables can the truck carry? (1 pound = 16 ounces) A. 12.5 ounces B. 25 ounces C. 200 ounces D. 1,600 ounces E. 3,200 ounces

Answers

Well this is a simple equation.
All you have to do is convert the pounds into ounces by doing 200 x 16! That equals 3,200! So therefore your answer would be “The truck can carry 3,200 ounces of fruits and vegetables or 200 pounds!” AKA E.

Answer:
All you have to do is convert the pounds into ounces by doing 200 x 16! That equals 3,200! So therefore your answer would be “The truck can carry 3,200 ounces of fruits and vegetables or 200 pounds!” AKA E.

The question: A parallelogram has vertices at (0,0), (0,6), (4,4), and (4, -2). Which transformation maps the parallelogram to itself?

Answers

Answer:

C

Step-by-step explanation:

Consider all options.

A. A reflection across the line x=2 gives us the parallelogram A'B'C'D' (see first attached diagram) with vertices A'(4,0), B'(4,6), C'(0,4) and D'(0,-2). As you can see this is not the same parallelogram as parallelogram ABCD.

B. A reflection across the line y=2 gives us the parallelogram A''B''C''D'' (see first attached diagram) with vertices A''(0,4), B''(0,-2), C''(4,0) and D''(4,6). As you can see this is not the same parallelogram as parallelogram ABCD.

C. A rotation of 180° about the point (2,2) gives us the same parallelogram ABCD (see second attached diagram), because the image of A is C, the image of B is D, the image of C is A and the image of D is B.

D. A rotation of 180° about the point (0,0) gives us the  parallelogram A'''B'''C'''D''' (see second attached diagram) that differs from parallelogram ABCD.

Answer:

c

Step-by-step explanation:

How do I complete Q4 part a?

Answers

[tex]\bf \begin{cases} f(x)=x^2+1\\ \cline{1-1} g(x)+x=3\\ g(x) = 3-x \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{llll} \boxed{a}\\\\ (f+g)(x)\implies f(x)+g(x)\\\\ (x^2+1)+(3-x)\\\\ x^2-x+4\\ \cfrac{}{} \end{array}~\hfill \begin{array}{llll} \boxed{b}\\\\ (f+g)(-2)\\\\ (-2)^2-(-2)+4\\\\ 4+2+4\\\\ 10 \end{array}~\hfill \begin{array}{llll} \boxed{c}\\\\ (f-g)(x)\\\\ (x^2+1)-(3-x)\\\\ x^2+x-2\\ \cfrac{}{} \end{array}[/tex]

7 divided by 4,088 in long division

Answers

Answer:584

Step-by-step explanation:

Final answer:

To simplify 2.4 times 10¹³ divided by 8 times 10⁷, subtract exponents to get 2.4 times 10⁶, or adjust the numerator and divide by 8 to find 3 times 10⁵ as the result to perform the calculation mentally.

Explanation:

When dealing with the division of expressions involving powers of ten, using exponent subtraction is often useful to simplify the problem. For the expression 2.4 times 10¹³ divided by 8 times 10⁷, one approach is to directly subtract the lower exponent from the higher one, yielding 2.4 times 10¹³⁻⁷, which simplifies to 2.4 times 10⁶. However, to perform in my head, an alternative way is to adjust the numerator by dividing it by 8, which results in 0.3 times 10¹³. Moving the decimal point in the numerator gives 3 times 10¹², and then dividing by 10⁷ gives a final result of 3 times 10⁵.

What are whole numbers and their opposites called?

Answers

Answer:There are positive integers, for example, 3, and its opposite, a negative integer, -3.

Step-by-step explanation:

Answer:

Any of the numbers {0, 1, 2, 3, ...} etc.  There is no fractional or decimal part. And no negatives.

Trevor spent $27 and now has no money left. What did he have before his purchase

Answers

Answer:$27

Step-by-step explanation:

x-27=0

0+27=27

27-27=0

What is the value of x when x + 10=4​

Answers

ANSWER: -6

x+10-10 = 4-10x=-6
Answer
-6
x+10=4
x=4-10
x=(-6)

Priya and Han plan a fundraiser for the running club. They begin with a balance of -80 because of expenses. In the first hour of the fundraiser they collect equal donations from 9 parents, which brings their balance to -44. How much did each parent give?

Answers

Answer:

Each parent donated 4 dollars

Step-by-step explanation:

80 - 44 = 36

so they got 36 dollars.

36÷9 = 4

You work for a landscaper that has a customer needing to seed an area of land 80 feet by 40 feet in size. The garden center
has 5-pound bags of grass seed. Each bag of seed costs $3.00 and can cover 25 square yards of land.
To determine the cost of materials, you multiply 80 x 40 = 3200, divide by 9 = 355.55 and then multiply by 3. The cost of
materials will be $1067. Is this correct?

Answers

Final answer:

The correct calculation for the total cost to seed an area of 80 feet by 40 feet is $45.00, substantially less than the incorrect $1067 identified due to proper area conversion and cost calculation.

Explanation:

The question about the cost of seeding an area of 80 feet by 40 feet involves calculations for area conversion, determining the number of seeds needed, and calculating the total cost. The initial step involves calculating the area in square feet (80 x 40 = 3200 sq ft) and then converting this area into square yards by dividing by 9 (since there are 9 sq ft in a sq yd), which equals approximately 355.56 sq yds. The bags of grass seed required is then determined by the coverage rate of 1 bag per 25 square yards, yielding about 14.22 bags. However, since you cannot purchase a fraction of a bag, you would need to buy 15 bags of seeds. At a cost of $3.00 per bag, the total cost is $45.00, contrasting significantly with the incorrect calculation provided in the question.

A glass pitcher is filled with water. 1/8 of the water is poured equally into 2 glasses.
a. What fraction of the water is in each glass?
b. If each glass has 3 fluid ounces of water in it, how many fluid ounces of water were in the full pitcher?
c. If 1/4 of the remaining water is poured out of the pitcher to water a plant, how many cups of water are left in the pitcher?

Answers

Answer:

Step-by-step explanation:

Part a)

Let the volume of water in glass pitcher be 'V'

Now it is given that 1/8 of water is poured in 2 glasses

Thus the volume of water in each glass is

[tex]V'=\frac{1}{2}\times \frac{V}{8}=\frac{V}{16}[/tex]

Part b)

Now it is given that volume of water in each glass is 3 fluid ounces thus to obtain the original volume we euate the volume obtained in part a with 3. Thus

[tex]\frac{V}{16}=3\\\\\therefore V=3\times 16=48ounces[/tex]

Part c)

After pouring out 1/8 water from the orifinal glass the volume of watre that remains in the pitcher euals

[tex]V_{rem}=V-\frac{V}{8}=\frac{7V}{8}[/tex]

Now since 1/4 of the above volume is poured out which euals

[tex]V_{poured}=\frac{1}{4}\times \frac{7V}{8}=\frac{7V}{32}[/tex]

Thus the volume of water that remains euals

[tex]V'_{rem}=\frac{7V}{8}-\frac{7V}{32}=\frac{21V}{32}[/tex]

Applying the value of V we get

[tex]V'_{rem}=\frac{21\times 48}{32}=31.5[/tex]ounces

Six subtracted from b is less than or equal to 19

Answers

Answer:

b≤25

Step-by-step explanation:

b-6≤19

start by adding 6 to both sides. the result would be b≤25. The answer is that simple.

If f(x) = 2x2 – 5 and g(x) = -x + 3, what is the value of f(g(4))?

Answers

Answer:

-3

Step-by-step explanation:

f(x) = 2x2 – 5 and g(x) = -x + 3,

g(4) = -4+3=-1

f(g(4)) = f(-1) = 2(-1)² -5 = -3

Given the functions f(x) = 3x2, g(x) = x2 - 4x + 5, and h(x) = -2x2 + 4x + 1, rank them from least to greatest based on their axis of symmetry.


f(x), g(x), h(x)

f(x), h(x), g(x)

g(x), h(x), f(x)

g(x), f(x), h(x)

Answers

Answer:

If we rant their axis of symmetry from least to greatest, it would be:

f(x),h(x), g(x)

Step-by-step explanation:

Axis of symmetry is a line that divides an object into two equal halves, thereby creating a mirror like reflection of either side of the object.

We can find axis of symmetry with the help of formula:

x = -b/2a

We know that the quadratic equation is written like:

ax^2+bx+c

where a,b are coefficients: c is constant term and x is variable

Now look at the function f(x)= 3x^2

For this function we have a= 3, b =0 , c=0

Put the values in the above mentioned formula:

x = -b/2a

x = - (0)/2(3)

x = 0/6 = 0

Thus the axis of symmetry for f(x) = 0

Now  g(x) = x2 - 4x + 5

a = 1 , b = -4 , c =5

x = -b/2a

x = -(-4)/2(1)

x = 4/2

x = 2

Axis of symmetry for g(x) = 2

h(x) = -2x2 + 4x + 1

a = -2 , b =4 , c=1

x = -b/2a

x = -(4)/2 (-2)

x = -4 /-4

x = 1

Axis of symmetry for h(x) = 1

So if we rant their axis of symmetry from least to greatest, it would be:

f(x),h(x), g(x)

Suppose an elevator starts at street level (0), goes down 4 floors to the parking deck and then goes up to 9 floors to the conference center. The conference center is on what floor? Show work!

Answers

Answer:

he's on the 5th floor

Step-by-step explanation:

If he's at 0, then he goes down 4. 0-4=(-4)

Then, He goes up 9 floors from -4.

-4+9=5

Hope this helps!!!

Brady

Final answer:

The elevator starts at street level (0), goes down to -4 and then rises 9 floors to reach the conference center. The sum of -4 + 9 gives 5 which is the floor number for the conference center.

Explanation:

The elevator starts at street level, which we are defining as floor 0. It then goes down 4 floors, so it's at -4. However, it then travels up to the conference center, moving a total of 9 floors. You need to add these 9 floors to where the elevator currently is. So you'll calculate -4 (the current floor number) + 9 (the number of floors it goes up) which equals 5. Therefore, the conference center is on the 5th floor.

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Write the equation of the line that passes through the points (8,1) and (2,-5) in standard form, given the the point- slope for is y+1=2/3(x-8)

Answers

first off, those two points above do not give that point-slope form, however, the issue is just what's the standard form.

keeping in mind that standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

[tex]\bf y+1=\cfrac{2}{3}(x-8)\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3(y+1)=3\left( \cfrac{2}{3}(x-8) \right)}\implies 3y+3=2(x-8) \\\\\\ 3y+3=2x-16\implies 3y=2x-19\implies -2x+3y=-19 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill 2x-3y=19~\hfill[/tex]

Final answer:

The equation of the line that passes through the points (8,1) and (2,-5) in standard form is 2x - 3y = 13.

Explanation:

To find the equation of the line that passes through the given points we need to understand the slope (rise over run) and the y-intercept. The provided equation, y + 1 = 2/3(x - 8), is in point-slope form (which is y - y1 = m(x - x1) where m is the slope and (x1, y1) is a point on the line). To transform to the standard form, we distribute the 2/3 on the right side, subtract 1 from both sides to move y to the left side.

Following these steps, we get: 2x - 3y = 13, as the equation of the line in the standard form.

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What’s the gcf for 31,32

Answers

Factors of 31: 1, 31

Factors of 32: 1, 2, 4, 8, 16, 32

Which number is found in both lists?

GCF(31, 32) = 1

Answer: 1

The perimeter P of a square whose side length is n… is this direct variation?

Answers

The perimeter of a square is four times the side, since you have to sum all sides, and they're all the same length:

[tex]P=n+n+n+n=4n[/tex]

This is direct variation, because we have

[tex]P=4n \iff \dfrac{P}{n}=4[/tex]

and if the ratio between two variables is constant (in this case, 4), then the two variables are in direct variation.

Final answer:

The perimeter of a square is directly proportional to its side length, therefore it's an example of direct variation.

Explanation:

Yes, the perimeter (P) of a square with side length (n) is an example of direct variation. In this case, P is directly proportional to n. To understand this, think of a square. A square has four equal sides. Thus, its perimeter (P) is n times 4, or P = 4n. If n is increased, the perimeter also increases proportionally, which supports that it's a direct variation relationship. A change in one quantity leads to a proportional change in the other one.

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A recipe uses 5 cups of water, 3 cups of rice, and 1 cup of black beans. What is the ratio of cups of rice to cups of water?

Answers

I believe it is 5:3:1. I'm not completely sure, but that's what I think it is.

The ratio of cups of rice to cups of water in the recipe is 3:5, as there are 3 cups of rice for every 5 cups of water.

To find the ratio of cups of rice to cups of water from the recipe that calls for 5 cups of water and 3 cups of rice, you can simply compare the two quantities directly. The question asked does not require considering additional batches or conversions, so we look at the given amounts.

For every 3 cups of rice, there are 5 cups of water. This can be written as 3:5 or as a fraction \\(\frac{3}{5}\\).

Therefore, the ratio of cups of rice to cups of water is 3:5.

through: (-5, -5), slope =4/5

Answers

Answer:

[tex]y = \frac{4}{5}x - 1[/tex]

Step-by-step explanation:

-5 = ⅘[-5] + b

-4

-1 = b

I am joyous to assist you anytime.

20 POINTS¡!!!!!

At top speed, the Spirit of Australia boat can cover 1,533 kilometers in 3 hours. At what unit rate does the boat travel during this time frame?


The boat travels at a unit rate of ____ kilometers per hour during the given time frame.

Answers

It’s traveling at 511 kilometers per hour
The unit rate that the boat can travel during this time frame is 511 kilometers in 1 hour.

What is the sum of the polynomials?

17m-12n-1+4-13m-12n

Answers

[tex]\text{Hello there!}\\\\\text{Combine like terms:}\\\\17m-12n-1+4-13m-12n\\\\4m-12n-1+4-12n\\\\4m-24n-1+4\\\\\boxed{4m-24n+3}[/tex]

Final answer:

The sum of the given polynomials is 4m - 24n + 3.

Explanation:

The sum of the polynomials 17m-12n-1+4-13m-12n can be found by combining like terms. To combine like terms, we group the terms containing the same variable and their coefficients.

Here’s how you can solve this:

Combine the terms with m: 17m and -13m to get 4m.Combine the terms with n: -12n and -12n to get -24n.Combine the constant terms: -1 and 4 to get 3.

After combining like terms, the sum of the polynomials is 4m - 24n + 3.

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