a unit vector that points in the direction of the vector −4 7 can be written as

Answers

Answer 1

The unit vector that points in the direction of the vector −4 7 can be written as u = (-4/[tex]\sqrt{(65)}[/tex], 7/ [tex]\sqrt{(65))}[/tex]

To find a unit vector that points in the direction of the vector −4 7, we need to divide the vector by its magnitude.

The magnitude of a vector v = ⟨v1, v2⟩ is given by:

|v| = [tex]\sqrt[/tex]([tex]v1^2[/tex] + [tex]v2^2[/tex])

So, the magnitude of vector −4 7 is:

|-4 7| = [tex]\sqrt(-4)^2[/tex] + [tex]7^2[/tex]) =[tex]\sqrt[/tex](16 + 49) = [tex]\sqrt[/tex](65)

To obtain a unit vector, we need to divide the vector −4 7 by its magnitude:

u = (-4/ [tex]\sqrt[/tex](65), 7/ [tex]\sqrt[/tex](65))

Therefore, a unit vector that points in the direction of the vector −4 7 is:

u = (-4/ [tex]\sqrt[/tex](65), 7/ [tex]\sqrt[/tex](65))

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Answer 2

A unit vector that points in the direction of the vector (-4, 7) can be expressed as either (-4/sqrt(65), 7/sqrt(65)) or (-4, 7)/sqrt(65).

To find a unit vector that points in the direction of the vector (-4, 7), we need to first find the magnitude of the vector. The magnitude of a vector v = (v1, v2) is given by the formula ||v|| = sqrt(v1^2 + v2^2).

For the vector (-4, 7), we have ||(-4, 7)|| = sqrt((-4)^2 + 7^2) = sqrt(16 + 49) = sqrt(65).

Next, we can find the unit vector in the direction of (-4, 7) by dividing the vector by its magnitude. That is, we can write the unit vector as:

(-4, 7)/sqrt(65)

This vector has a magnitude of 1, which is why it's called a unit vector. It points in the same direction as (-4, 7) but has a length of 1, making it useful for calculations involving directions and angles.

The unit vector can also be written in component form as:

((-4)/sqrt(65), (7)/sqrt(65))

This means that the vector has a horizontal component of -4/sqrt(65) and a vertical component of 7/sqrt(65), which together make up a vector of length 1 pointing in the direction of (-4, 7).

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Related Questions

Are all lines of longitude measured in degrees north and south of the prime meridian?

Answers

No , all lines of longitude are not  measured in degrees north and south of the prime meridian

Lines of longitude run north to south and measure places expressed in degrees east or west of the Prime Meridian.The basic work of the longitude lines is to show the distance at which a place lies, east or west of the Prime Meridian.

Longitude is a measurement of location east or west of the prime meridian at Greenwich, London, England, the specially designated imaginary north-south line that passes through both geographic poles and Greenwich. Longitude is measured 180° both east and west of the prime meridian.

Any location's distance from the equator may be determined using its latitude, which is based on its degree. We can locate any point on Earth using longitude and latitude. The GPS or Global Positioning System uses these coordinates.

The grid system that enables us to locate absolute or precise places on the surface of the Earth is made up of latitude and longitude. Latitude and longitude can be used to pinpoint certain locations. Landmark identification also benefits from knowledge of latitude and longitude

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Find the coordinates of the vertices of the figure after the given transformation.

Dilation of 1.5

Answers

Answer:

[tex]D'(-3,-1.5), E'(0,4.5), F'(3,-3)[/tex]

Step-by-step explanation:

Assuming the dilation is centered at the origin, it is known that for a dilation of scale factor [tex]k[/tex] centered at the origin, [tex](x,y) \to (kx,ky)[/tex].

In your own words, tell me what is the solution set of the equation if the x-intercept method leads to a horizontal line that coincides with the x-axis.

Answers

The solution of the system of equations for this problem is given as follows:

(x-intercept, 0).

How to obtain the solution of the system of equations?

Via graphing, the solution of the system of equations is obtained by the point of intersection of the points.

An horizontal line can be traced through the point of intersection.

This line coincides with the x-axis, hence the y-coordinate of the solution is given as follows:

y = 0.

Due to the x-intercept method, the x-coordinate of the solution is the x-intercept.

Missing Information

The equations for this problem are not given, hence the solution is given in general terms.

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use pascal’s triangle to expand (3s+2)^5

Answers

The  pascal’s triangle to expand (3s+2)⁵ is 243s⁵ +810s⁴ + 1080s³ + 720s² + 240s + 32.

What is the expanded form of an expression?

Expanded form, also known as expanded notation, is a method of writing numbers that allows you to see the math value of individual digits. When numbers are separated into individual place values and decimal places, a mathematical expression can be formed.

Most people are introduced to Pascal's triangle via a seemingly arbitrary set of rules. Begin with a 1 on top and 1s running down both sides of a triangle. Each new number is located between and below two other numbers, and its value is the sum of the two numbers above it. The theoretical triangle is infinite and continues indefinitely downward, but only the first six lines are shown in figure 1. More rows of Pascal's triangle are shown in the article's final figure. Another way to look at the triangle is to imagine the first line as an infinite sequence of zeros with the exception of a single 1.Add every adjacent pair of numbers and write the sum between and below them to get successive lines. Pascal's triangle is the non-zero part.

Pascal 's triangle is

1

1,1

1,2,1

1,3,3,1

1,4,6,4,1

1,5,10,10,5,1

The expanded form of (3s+2)⁵ is

= 1×(3s)⁵×2⁰ + 5×(3s)⁴×2¹+ 10×(3s)³×2² +10×(3s)²×2³ + 5×(3s)¹×2⁴+ 1×(3s)⁰×2⁵

=243s⁵ +810s⁴ + 1080s³ + 720s² + 240s + 32

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What triangles are similar to ABC
A. FED only
B. HIG only
C. Both
D. Neither

Answers

The triangle is similar to FED only

Help this gemotry work help help due today

Answers

According to the isosceles triangle theorem, if two sides of a triangle are congruent, the angles across from those sides are likewise congruent.

What is Isosceles Triangle Theorem?

According to the isosceles triangle theorem, if two sides of a triangle are congruent, the angles across from those sides are likewise congruent.

∆ABC is an isosceles triangle with AB = AC.

Construction: Altitude AD from vertex A to the side BC.

Explanation To Prove: ∠B = ∠C.

Proof: We know, that the altitude of an isosceles triangle from the vertex is the perpendicular bisector of the third side. Thus, we can conclude that,

∠ADB = ∠ADC = 90º ----------- (1)

BD = DC ---------- (2)

Consider ∆ADB and ∆ADC

AB = AC [Given]

AD = AD [common side]

BD = DC [From equation (2)]

Thus, by SSS congruence we can say that,

∆ADB ≅ ∆ADC

By CPCT, ∠B = ∠C.

Hence, we have proved that if two sides of a triangle are congruent, then the angles opposite to the congruent sides are equal.

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Suppoe you have $5000 to invet, and you want to earn $1000 imple interet in 5 year. What i the lowet interet rate that will allow you to do thi?

Answers

Answer:

4%

Step-by-step explanation:

[tex]I=Prt \\ \\ 1000=5000(r)(5) \\ \\ 1000=25000r \\ \\ r=0.04=4\%[/tex]

graph the direct variation y=-=1.5x. using the graph find the value of x when y=-3,4,5 and 6

Answers

The graph of function y = -1.5x, for x = -3, 4, 5, and 6 is shown.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
y = -1.5x.

Substitute the value of x = -3, 4, 5, and 6.

x = -3
y = -1.5(-3)
y = 4.5

Similarly,
x = 4   ;y = -6

x = 5  ;y = -7.5
x = 6  ;y = -9

Thus, the graph for the value of has been shown,

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Do sides 10 cm 24cm 26cm from a right angled triangle justify?

Answers

The sides 10 cm, 24 cm and 26 cm can form a right-angled triangle. The Pythagorean theorem can be used to verify this.

From Pythagorean theorem, it can be said that, the square of hypotenuse side is equal to the sum of other two sides of a right angled triangle.

Let AB, CA and BC be the sides of a right triangle. CA is the hypotenuse side, AB and BC are the base and height sides of the right triangle. The equation can then be expressed as,

CA² = AB² + BC²

Now, let us check this rule for the above given sides of the triangle.

Longest side² = Sum of squares of other two sides

26² = 24² + 10²

676 = 576 + 100

Thus, the sides 10 cm, 24 cm and 26 cm can form a right-angled triangle.

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George wants to participate in a triathlon competition where he has to swim, cycle and run some distances. The cycling distance is 4 times the running distance. The swimming distance is 5.5 miles less than the running distance, and is 24 miles less than the cycling distance. Find the total distance of the race.​

Answers

Answer:total distance is 14

Step-by-step explanation:because 4 x 5.5 miles -14

Right triangle ABC has an area of 16 cm². Segment AB has a length of 8 cm, and segment CA is the hypotenuse. What is the distance between C and A?

Answers

Therefore , the solution of the given problem of triangle comes out to be CA = 8.94 cm .

A triangle is what exactly?

An triangle is a polygon since it has four or more parts. It is a simple geometric shape. A square having angles A, B, and C is referred to as a triangle ABC. When the sides are not collinear, Euclidean geometry generates a single plane and square. If a triangle has three sides and three corners, it is a polygon. The corners of a triangle are where its three sides meet. The sum of the angles in a triangle is 180 degrees.

Here,

Given : A right triangle ,

Area  =16 cm squarea

=> 1/2 * b * h = 16

=> 8*h = 32

= > h  =4

=> 8²+ 4²= CA²

=>  CA² =  64 + 16

=>  CA² =  80

=> CA = √80

=>CA = 8.94 cm

Therefore , the solution of the given problem of triangle comes out to be CA = 8.94 cm .

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HELP PLS RIGJT NOW solve systems of linear Equations

Answers

Answer: (5, -2)

Step-by-step explanation:

They give you two equations with two variables. You can solve this using elimination or substitution. However, it seems as though the problem wants you to do it through elimination. On the right, you have the equation

    6x + 10y = 10

+  -6x - 24y = 18

After add these equations, you get -14y = 28. By dividing both sides by -14, you get y = -2. You can plug y = -2 back into either one of the original equations, and solve for x.

x = 5.

So your answer is (5, -2)

4 square miles of land is separated into sections that each have an area of 1/2 square mile

Answers

The number of sections that each have an area of 1/2 square mile will be 8.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

4 square miles of land are separated into sections that each have an area of 1/2 square mile.

Then the number of the equal section is given as,

⇒ 4 / (1/2)

⇒ 8 section

The number of sections that each have an area of 1/2 square mile will be 8.

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help me with this please and thank you

Answers

Answer:

4, 1, 2, 3

Step-by-step explanation:

let x = cost of 1 bar

cost of 75 bars = $65

cost of one bar => 75/75 = $65/75

x = $0.87

Answer:

4.  c = $0.97 rounded to the nearest hundredth

1.  Let c = cost of one bar

[tex]\textsf{2.} \quad 75c=\$65[/tex]

[tex]\textsf{3.} \quad \dfrac{75}{75}c=\dfrac{\$65}{75}[/tex]

Step-by-step explanation:

Step 1

Define the variable:

Let c = cost of one bar

Step 2

Given that one box of 75 Toblerone chocolate bars costs $65:

[tex]75c=\$65[/tex]

Step 3

To find the cost of one Toblerone chocolate bar, divide both sides of the equation by 75:

[tex]\dfrac{75}{75}c=\dfrac{\$65}{75}[/tex]

Step 4

Simplify both sides of the equation and round the solution to the nearest hundredth:

c = $0.97 rounded to the nearest hundredth

please help
Find the value of x.
Round to the nearest tenth.
a 28
b x
22
11
x =?
c

Answers

Answer:

  69.9° or 110.1°

Step-by-step explanation:

You want to know the angle opposite the side of length 22 in a triangle in which a 28° angle is opposite a side of length 11.

Law of Sines

The law of sines tells you ...

  sin(B)/b = sin(A)/a

  sin(x)/22 = sin(28°)/11

  sin(x) = 22/11 · sin(28°)

  x = arcsin(2·sin(28°)) ≈ 69.9° or 110.1°

__

Additional comment

There are generally two solutions to a Law of Sines problem in which the given angle is opposite the shorter of two given sides. The exception is when the triangle is a right triangle.

Prove the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus. Find the slope of ef and gd.

Answers

The slope of ef and gd can be found by using the formula: slope = (y2 - y1) / (x2 - x1) where ef = (x1, y1) and gd = (x2, y2) are the coordinates of the points e and g.

Isosceles Trapezoid Form A Rhombus

A rhombus is a quadrilateral with all sides equal in length. To prove that the segments joining the midpoint of consecutive sides of an isosceles trapezoid form a rhombus, we can use the following properties of an isosceles trapezoid:

       - The two bases (the parallel sides) are congruent.

       - The two legs (the non-parallel sides) are congruent.

       - The diagonals of the trapezoid bisect each other.

Using these properties, we can see that:

       - The midpoints of the legs are congruent, since the legs are congruent.

       - The midpoints of the bases are congruent, since the bases are congruent.

       - The segments joining the midpoints of the legs and the bases are congruent, since they are both the same distance from the midpoint of the bisected diagonal.

Therefore, the segments joining the midpoints of the sides of an isosceles trapezoid are congruent, and since they are congruent they form a rhombus.

        The slope of ef and gd can be found by using the formula: slope = (y2 - y1) / (x2 - x1) where ef = (x1, y1) and gd = (x2, y2) are the coordinates of the points e and g.

Since the slope of the line perpendicular to the diagonals of a rhombus is always opposite reciprocal, the slope of ef and gd are opposite reciprocal, which means:

the slope of ef = -1/slope of gd.

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someone please help, fast!! ​

Answers

Answer:

b) m = -2 and b=10 and c) m= 2/5 and b=4

Step-by-step explanation:


For b, we know that the b value (y-intercept) is 10 because it is the y value when x= 0, which is shown on the table as 10.

Next, to find the slope (m-value) we know that 10 gets added to the y value so then x(2) + 10 = 6

subtract 10 from both sides and you get 2x = -4

divide both sides by 2 to get x= -2 or our m-value (slope)
-------------------------------------------------------------------------------------------------------------
For c, we know that the graph intercepts the y-axis at 4, so that is our b value.

We know know: y= m(x) + 4

To find the slope, we use the formula: rise/run

When the graph goes up 6 to get to y=10, the x value goes 15 across

Rise = 6 ;  Run = 15

6/15 = 2/5

Therefore, the m value is 2/5

Find the smallest positive integer divisible by every positive integer less than or equal to ten.

please could you explain the method to me... i'm pretty confused

Answers

2520. you just have to find the least common multiple of 1 through 10. it must be even, end in 0, and divisible by all other integers. the lcm of 1 through 6 is 60 (which is pretty easy to find). the lcm of 1 through 7 is 420 (60x7). the lcm of 1 through 8 is 840 because 420/8=52.5, so you multiply by 2 to get an integer. by this same logic, you get 2520 for one through 9 and since it is a multiple of 10 you are done.

How do you make a table of values for an equation?

Answers

Prior to selecting an input value range, create the table. Replace each input value with its equivalent in the supplied equation's left-hand column.

what is function ?

Mathematics encompasses the study of numbers, formulas and related structures, shapes and the spaces in which they exist, quantities and their variations, and spaces in which they exist. A function is an association between a set of inputs, each of which has an output. Simply described, a function is a relationship between inputs and outputs, where each input results in a single, distinct output. Each function has a domain and a codomain, often known as a scope. Typically, the letter f is used to denote functions (x). is the input. There are four different categories of functions. based on one-to-one functions, many-to-one functions, on functions, within functions, and one-to-one functions.

given

Prior to selecting an input value range, create the table.

Replace each input value with its equivalent in the supplied equation's left-hand column.

The output value can be found by analyzing the equation in the middle column.

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S = a + b + c

Solve for b.

Answers

[tex]s=a+b+c[/tex] solve for b

Flip:

[tex]a+b+c=s[/tex]

Add -a to both sides:

[tex]a+b+c+-a=s+-a[/tex]

[tex]b+c=-a+s[/tex]

Add -c to both sides:

[tex]b+c+-c=-a+s+-c[/tex]

[tex]\fbox{b = -a - c + s}[/tex]

Answer:

S - c - a = b or b = S - c - a ( same answer just written differently)

Step-by-step explanation:

S = a + b + c move the unwanted exponents to the other side

S = a + b + c / - c

S - c = a +b / - a

S - c - a = b

What are the rules for substitution?

Answers

The rules for substitution are, first simplify the given equation, solve one of the equations for any unknown value, substitute the step 2 solution in another equation, solve the new equation, and finally solve the equation to find the second variable.

The substitution method is the algebraic method to solve different linear equations. In this method, the value of one variable from either of the equation is substituted in the other equation.

The following steps of rules are used to solve an equation by substitution method:

Step 1. Simplify the given equation by removing the parenthesis.

Step 2. Solve one of the equations for any unknown value.

Step 3. Substitute the step 2 solution in the other equation.

Step 4. Now solve the equation which gets from step 3 obtained using elementary arithmetic operations.

Step 4. Finally, solve the final equation for the second variable.

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Can somebody help me?

Answers

An picture is warped to fit a target brain by applying a coordinate transformation on the source image. The degree of coordinate transformation difficulty depends on the spatial normalization's regional scope.

Why do we need coordinate transformation?

An essential method for converting data between reference systems uses a set of control points that are measured in both systems, which is known as a coordinate transformation. To pinpoint the location of robots, sensors, and other items in robotics applications, a variety of different coordinate systems can be used. Position and orientation data can typically be used to specify where an object is located in 3-D space.

The rotation matrix is used to transform coordinate systems with various orientations. This changes the components of any vector with regard to a coordinate frame into the components of a frame that has been rotated with respect to the original frame. The geographic coordinate system of the layers is calculated to be converted to match the geographic coordinate system in the transformation.

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At a new Italian restaurant, you order a salad for $3.50 and baked ziti for $9.25. If you want to leave a 15% tip, how much money should you leave for the waiter as tip?

Answers

Answer:

The total cost of the salad and baked ziti is $3.50 + $9.25 = $12.75

To calculate the tip, you need to multiply the total cost by the tip percentage (expressed as a decimal)

Tip = $12.75 x 0.15 = $1.91

So you should leave $1.91 as a tip for the waiter.

Step-by-step explanation:

Y=3/4x+3 I’m so confused on how to graph the and solve it please helpp

Answers

In Y=3/4x+3 the Slope is 3/4, the Y-intercept is (0,-3) and the usual form is 3x4y=12. , which does not have a conic section. as opposed to asymptotes.

How to draw a graph ?

Use the slope and y-intercept, or two points, to graph the line. 3 / 4 of a slope; y-intercept: (0,-3) Write in formal language. 3 x-4 y=12         Discover the negative reciprocal of the original line's slope.

[tex]$$m_{\text {perpendicular }}=-\frac{4}{3}$$[/tex]

In order to identify the periods during which the equation is increasing or decreasing, graph it. Continued Growth There are no asymptotes since the equation Y=3/4x+3 is not a reasonable expression. There are no asymptotes. Any conic section's form is not compatible with the equation. Not a Conic Section.This subject can't be explored any further. Please double-check the supplied phrase or select a different subject.

[tex]$$y={3}/{4} x-3$$[/tex][tex]$$y={3}/{4} x+3$$[/tex]

Identify the y-intercept = b , y = mx + b. Plot the y-intercept. The focus will be (0, b). Calculate the slope=m of the equation y = mx + b. Create a single step utilizing the rise and run from the slope. Connect those two places with your line.

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Kyle has a storage box that is 2 ft. long, 3 ft. high, and has a volume of
12

ft.
3
12

ft.
3
. Myla has a storage box that is 4 ft. high, 2 ft. long, and has a volume of
16

ft.
3
16

ft.
3
. What are the widths of Kyle and Myla's boxes? Explain how you know.

Answers

The widths of Kyle and Myla's boxes are both 2ft respectively.

How to calculate the width of the storage boxes?

For Kyle;

The volume of his storage box = 12ft³

The length of the box = 2ft

The height of the box = 3ft

The width of the box = ?

But volume of a box = length×width×height

12 = 2×3×width

make width the subject of formula;

Width = 12/6 = 2 ft

For Myla;

The volume of his storage box = 16ft³

The length of the box = 2ft

The height of the box = 4ft

The width of the box = ?

But volume of a box = length×width×height

16= 2×4×width

make width the subject of formula;

Width = 16/8 = 2 ft

Therefore, the width of the both boxes are the same in measurement.

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How many types of coordinate system are in Revit?

Answers

There are three types of coordinate systems in Revit: Project Coordinates, Shared Coordinates, and Site Coordinates.

There are three types of coordinate systems in Revit: Project Coordinates, Shared Coordinates, and Site Coordinates. Project Coordinates are the default coordinates used in Revit and are based on the project origin. This is the origin point of the model and all elements in the project are positioned relative to this point.

Shared Coordinates are used to link multiple projects together. This origin point is determined by a shared coordinate system, which is based on the origin of the shared coordinate system.

Site Coordinates are used to set the project origin in the real-world location of a site. This location is determined by the user and the coordinate values can be set in the Site Location dialog box. All elements in the project are then positioned relative to this real-world site location.

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The graph below shows the relationship between the number of hours Elisa works and the total amount of money in her bank account. Which equation can be used to find the amount of money in Elisa’s bank account (y) when she works for (x) hours?

Answers

If he works 14 hours then he will earn the amount of $105 which is true and if he works 16 hours then he will earn $120 which is true.

What is the Linear equation?

You should be aware that a linear equation is defined as an equation in which the highest power of the variable is one.

The given graph represents Elisa's work and the amount of money he earns at his job.

According to the given graph,

We can see two points are (4, 30) and (8, 60)

The linear equation will be

⇒ y - 30 = (60-30)/(8-4)(x-4)

⇒ y - 30 = (30)/(4)(x-4)

⇒ y - 30 = 7.5(x-4)

⇒ y = 7.5x - 30 + 30

⇒ y = 7.5x

Elisa's work = 14 hours then we verify the response by substituting x = 14 in the above equation,

⇒ y = 7.5(14)

⇒ y = 105

Thus,  if he works 14 hours then he will earn $105

Elisa's work = 16 hours then we verify the response by substituting x = 16 in the above equation,

⇒ y = 7.5(16)

⇒ y = 120

Thus, if he works 16 hours then he will earn $120.

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Correct question:

The graph below shows the relationship between the number of hours

Cody works and the amount of money he earns at his job. Which of the

following statements is not true about the relationship?

100

90

80

70

60

MONEY EARNED

50

40

30

20

10

1

2

3

4

5

6

7

8 9 10

HOURS WORKED

Where is (-4,-2.5) in the easiest way to put it

Answers

(-4, -2.5) represents a point on the cartesian coordinate system having -4 units on the x axis and -2.5 units on the y axis

What is cartesian coordinate system?

A Cartesian coordinate system in a plane is a system of coordinates that identifies each point uniquely by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular oriented lines, measured in the same unit of length.

The two fixed perpendicular oriented lines are

x axisy axis

They are represented by a pair of numerical coordinates called ordered pair. The ordered pair are arranged such that the x values are first then a comma and the y values.

This is written as (x, y) hence for (-4, -2.5) x = -4 and y = -2.5

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What is a 2 3 ratio file?

Answers

A 2:3 ratio file refers to a digital image file with a width-to-height aspect ratio of 2:3.

This means that for every 2 units of width, the file has 3 units of height. This ratio is commonly used in photography and results in images that are similar in shape to standard prints.

This ratio is commonly used in digital photography, and it is a standard aspect ratio for many camera sensors, which results in a proportion that is similar to standard prints.

This ratio is also used in other fields such as video and graphic design. The 2:3 ratio is a common aspect ratio for digital cameras and is also used for printing photographs in standard sizes, such as 4x6, 5x7, and 8x10 inches. This ratio can also be represented as 1.5:1 in decimal form.

To learn more about the ratio file at

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If the area of an isosceles right triangle is 72, find the length of the hypotenuse.

Answers

Answer: The length of a hypotenuse can be found if you use the Pythagorean theorem and by doing that, the length of the square will equal the same squares of the lengths of the other two sides.

Step-by-step explanation: I am so sorry i tried to paraphrase so pls dont be mad at me. ( i am not good at it but atleast i tried, no hate pls)

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