Which is the most precise description of quadrilateral ABCD?

Which Is The Most Precise Description Of Quadrilateral ABCD?

Answers

Answer 1

The most precise description of quadrilateral ABCD is a square.

We have,

Quadrilateral ABCD.

We see that,

AB is parallel to CD

AB = CD _____(1)

AD is parallel to BC.

AD = BC _____(2)

Now,

AB = AD ______(30

From (1), (2), and (3).

AB = BC = CD = AD

This means,

The Quadrilateral ABCD is a square.

Thus,

The most precise description of quadrilateral ABCD is a square.

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Related Questions

Write the equation of the line that passes through (7,- 4) and (-1, -2) in slope-intercept form.
O y = x-1
O y = -x-1
O y=-x-2
O y=-4x-6

Answers

To find the equation of the line passing through the points (7, -4) and (-1, -2), we need to first find the slope of the line. The slope of a line passing through two points (x1, y1) and (x2, y2) is given by:

m = (y2 - y1) / (x2 - x1)

Substituting the given values, we get:

m = (-2 - (-4)) / (-1 - 7) = 2/8 = 1/4

Now that we have the slope, we need to find the y-intercept of the line, which is denoted by 'b'. We can use the slope-intercept form of a line, which is:

y = mx + b

where m is the slope and b is the y-intercept.

To find b, we can use one of the given points. Let's use (7, -4):

-4 = (1/4)(7) + b
-4 = 7/4 + b
b = -4 - 7/4
b = -23/4

Now we have the slope and y-intercept, so we can write the equation of the line in slope-intercept form:

y = mx + b
y = (1/4)x - 23/4

Therefore, the correct answer is: y = (1/4)x - 23/4.

Pls help me ASAP PLEASE ​

Answers

Answer: bellshaped

Step-by-step explanation:

Help me solve and show my work please

Answers

The above prompts are related to the concepts of Degrees, Radians, Sines and Cosines. See the solutions below.

What are the solutions to the above prompts?


1)

(a) Cos 150 degrees

To convert 150 degrees to radians, we multiply by π/180:

150 degrees = (150π/180) radians = (5π/6) radians

We can use the unit circle and reference angle of π/6 to find the cosine of 5π/6:

cos(5π/6) = -cos(π/6) = -(√3/2) = -√3/2

Therefore, cos 150 degrees = -√3/2.

(b) Sin 240 degrees

To convert 240 degrees to radians, we multiply by π/180:

240 degrees = (240π/180) radians = (4π/3) radians

We can use the unit circle and reference angle of π/3 to find the sine of 4π/3:

sin(4π/3) = -sin(π/3) = -(√3/2) = -√3/2

Therefore, sin 240 degrees = -√3/2.

2)

To use the law of cosines, we need either a side and the two angles opposite that side, or two sides and the angle between them. In this case, we have two angles and the side opposite one of them, so we can use the law of sines to find the other side and then use the law of cosines to find the remaining side or angle.

Using the law of sines, we have:

sin A / AB = sin B / AC

where AC is the side opposite angle B. Substituting the given values, we get:

sin 52 / 26.7 = sin 70 / AC

Solving for AC, we get:

AC = sin 70 / sin 52 * 26.7 = 30.4

Now we can use the law of cosines to find the remaining side, x:

x^2 = AB^2 + AC^2 - 2ABACcos A

Substituting the given values, we get:

x^2 = 26.7^2 + 30.4^2 - 226.730.4*cos 52

Solving for x, we get:

x ≈ 22.1

Therefore, the missing side is approximately 22.1.


To find the area of the triangle, we can use the formula:

Area = (1/2) * a * b * sin C

where a and b are the lengths of the two sides, and C is the included angle. Substituting the given values, we get:

Area = (1/2) * 7 * 9 * sin 30

Using the fact that sin 30 = 1/2, we can simplify this to:

Area = (1/2) * 7 * 9 * (1/2) = 15.75

Therefore, the area of the triangle is 15.75 square units.

From the law of sines, we have:

sin A / a = sin B / b

Substituting the given values, we get:

sin 45° / (7√2) = sin B / 7

Solving for sin B, we get:

sin B = (7/7√2) * sin 45° = √2/2

Therefore, B = 45° or 135°. We can use the fact that the angles of a triangle sum to 180° to find C:

C = 180° - A - B = 90° or 0°

If C = 0°, then the triangle is degenerate and the sides a and b lie on top of each other. Therefore, we must have C = 90°.

Now we can use the Pythagorean theorem to find the remaining side:

c^2 = a^2 + b^2 - 2ab*cos C

Substituting the given values, we get:

c^2 = (7√2)^2 + 7^2 - 2(7√2)(7)*cos 90°

Solving for c, we get:

c = √(98 + 49) = √147 = 7√3

Therefore, the sides of the triangle are:

a = 7√2

b = 7

c = 7√3



Using the law of cosines to find x:

In triangle ABC with side lengths AB = 18, AC = 15, and angle A = 108 degrees, we want to find the length of side BC (denoted by x). Using the law of cosines:

x^2 = 18^2 + 15^2 - 2(18)(15)cos(108 degrees)

We can evaluate the cosine of 108 degrees using the identity cos(180 - 108) = -cos(108):

cos(108 degrees) = -cos(180 - 108 degrees) = -cos(72 degrees)

Substituting this into the equation above, we get:

x^2 = 18^2 + 15^2 - 2(18)(15)(-cos(72 degrees))

Simplifying:

x^2 = 729

Taking the square root of both sides:

x = ±27

Since x represents a length, we take the positive root:

x = 27

Therefore, the length of BC is 27 units.

Using the law of cosines to find theta:

In triangle ABC with side lengths AB = 20, BC = 12, and AC = 10, we want to find the measure of angle B (denoted by theta). Using the law of cosines:

cos(B) = (12^2 + 10^2 - 20^2) / (2(12)(10)) = -1/2

Since -1/2 is the cosine of an angle in the second quadrant, we have:

B = 180 degrees - arccos(-1/2)

Using a calculator, we find:

B ≈ 150.5 degrees

Therefore, the measure of angle B is approximately 150.5 degrees (or theta = 150.5 degrees).

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Figure A is a scale image of figure b as shown the scale that maps figure a onto figure b is 1:1 3/4

Answers

The value of x is 21.75.

We need to convert from mixed number to decimal number. To do this you can follow the steps shown below:

We must divide the numerator of the fraction by the denominator of the fraction.

Now we must add the quotient obtained to the Whole number part.

So, we get:

7 1/4 = 7.25

Then, the scale image that maps "Figure a" onto "Figure b" is: 1 : 7.25.

Finally, in order to find the value of "x", you need to multiply the given length of the corresponding side of "Figure a" by 7.25,

Therefore, you get that the result is:

x = 3(7.25)

x = 21.75

Hence the value of x is 21.75.

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The complete question is ;

Figure a is a scale image of figure b the scale that maps figure a onto figure b is 1:7 1/4 enter the value of x

Both figures are triangles

Figure a is smaller than figure b

Figure a to the right has a 3

Figure b to the right has a x

3/4 + x = 2. What is the value of x?

Answers

3/4 + x = 2
Subtract 3/4 to both sides to get x by itself:
x = 2 - 3/4
Calculate:
x = 5/4
***explanation to 2 - 3/4 = 5/4:
To subtract fractions, we must get a common denominator. 2 can also be written as 2/1 or 4/2, or 8/4. So we will do 8/4 - 3/4. When adding/subtracting fractions, only calculate the numerator and keep the denominator. So 8 - 3 = 5. 8/4 - 3/4 = 5/4

So the value of x is 5/4 or 1 1/4 or 1.25.

Hope this helped!

Given a circle with center C and m∠SCR = 42°, determine each of the following.




mSR⌢ =_______ degrees


mSCQ⌢ =______ degrees


mSQR⌢ =______ degrees


mQV⌢ =-_____ degrees


m∡QSV =______ degrees


m∡QVR = ___ degrees

(45 pointswill give brainiest for effort)

Answers

The measures of the angles are

MSR = 42

MSCQ = 138 degree

mSQR = 318 degrees

mQV = 42 dgerres

How to solve for the angles

MSCQ + MSCR = 180

MSR = MSCR = 42

MSCQ + 42 = 180

MSCQ = 138 degree

MSQR = 360 - 42

= 318 degrees

MQV = MSR vertically opposite

= 42 degree

MQSR = 1/2 x 42

= 21 degrees

MQV = 1/2 x 180 = 90 degrees

The measures of the angles have been solved for

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NEED HELP ASAP!!!!!!! Let f(p) be the average number of days a house stays on the market before being sold for price p in $1,000s. Which statement best describes the meaning of f(275)?

A. Houses sell on the market for an average of $275,000 and stay on the market an average of 275 days before being sold
B. Houses sell for an average of $275,000.
C. f(275) indicates houses stay on the market an average of 275 days before being sold.
D. f(275) represents the average number of days houses stay on the market before being sold for $275,000.

Answers

f(275) represents the average number of days houses stay on the market before being sold for $275,000.

Which statement best describes the meaning of f(275)?

From the question, we have the following parameters that can be used in our computation:

f(p) is the average number of days a house stays on the market before being sold for price p in $1,000s

This means that

In f(275), we have

p = 275

So, the meaning is:

f(275) is the average number of days a house stays on the market before being sold for price $275,000s

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What is the solution of this system of equations?
y = -6x + 5
4x - y = 5

Answers

The solution of the system of equations given y = -6x + 5 and 4x - y = 5,  is (1, -1).

To solve this system of equations, we can use the substitution method. We can rearrange the first equation to solve for y in terms of x:

y = -6x + 5

Next, we can substitute this expression for y in the second equation:

4x - (-6x + 5) = 5

Simplifying this equation, we get:

4x + 6x - 5 = 5

Combining like terms, we get:

10x = 10

Dividing both sides by 10, we get:

x = 1

Now that we have the value of x, we can substitute it back into one of the original equations to solve for y. Using the first equation, we get:

y = -6(1) + 5 = -1

Therefore, the solution of the system of equations is (1, -1). This means that the two equations intersect at the point (1, -1) on the coordinate plane, and this is the only point that satisfies both equations simultaneously.

In summary, to solve the system of equations y = -6x + 5 and 4x - y = 5, we used the substitution method to find that the solution is (1, -1).

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PLEASE HELP PLEASE ASAP I NEED THIS NOW

Answers

The slope-intercept form of the equation is y = 18x.

What is the function in slope-intercept form

To find the function in slope-intercept form, we have to write the general form below as;

y = mx + c

m = slope

c = y-intercept

To find the slope, we need to take two points from the table given;

slope (m) = y2 - y1 / x2 - x1

m = 720 - 450 / 40- 25

m = 18

The slope of the line is 18

we can use this with any point to find the y - intercept

y = mx + c

720 = 18(40) + c

720 = 720 + c

c = 720 - 720

c = 0

The equation of the line in slope-intercept form is y = 18x

b. To determine how far he travelled with 55 gallons of gas

y = 18x

y = 18(55)

y = 990 miles

c. How many gallons will be required to cover 630 miles

y = 18x

630 = 18x

x = 630 / 18

x = 35 gallons

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Side of a triangle is utility pole. Henry wouls like to know how long the guy wire, c, should be. The telephone pole is perpendicular to the ground. Henry knows that a = 20 ft and b = 15 ft. The length of the guy wire should be

Answers

The length of the guy wire should be option D √(25) ft. that is 25 ft.

What is perpendicular mean?

Perpendicular means that two lines or objects intersect each other at a 90-degree angle, forming a right angle. This means that if you were to draw a line at the point of intersection, it would split the angles on either side of it into two equal parts. In simpler terms, if you imagine a horizontal line and a vertical line intersecting each other, they would be perpendicular to each other. The concept of perpendicularity is important in geometry and is used in many different applications, such as construction, engineering, and design.

We can use the Pythagorean theorem to find the length of the guy wire c. According to the theorem, in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. Therefore:

c² = a² + b²

Substituting the given values:

c² = (20 ft)² + (15 ft)²

c² = 400 ft² + 225 ft²

c² = 625 ft²

Taking the square root of both sides:

c = √(625) ft

c = 25 ft

Therefore, the length of the guy wire should be 25 feet.

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Last week 12 boxes of recycled paper were used this week double that number are used how many boxes in this?

Answers

24  boxes were used this week


How to calculate the number of boxes that were used for the week?

12 boxes of recycled paper were used last week
For this week double of this amount was used

When calculating double the amount that was used, this means we have to multiply the initial amount by 2

In this case, we have to multiply 12 by 2

= 12 × 2

= 24

Hence 24 boxes of recycled paper was used this week

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A project has estimated annual net cash flows of $55,800 it is estimated to cost $262,260 determine the cash pay bag. Round the answer to one decimal place

Answers

The cash payback period for the project is 4.7 years.

What is cash payback period?

The cash payback period is a financial metric that calculates the amount of time it takes for a project to generate enough cash flows to recover the initial investment (cost). It is calculated by dividing the initial investment by the estimated annual net cash flows.

What is decimal?

Decimal refers to a system of numbers based on the number 10, where each digit represents a different power of 10. It is a way of expressing numbers using a decimal point to separate the whole number from the fractional part.

Given:

Estimated annual net cash flows = $55,800

Initial investment (cost) = $262,260

Cash Payback Period = Initial Investment / Estimated Annual Net Cash Flows

Putting the values:

Cash Payback Period = $262,260 / $55,800

Calculating the cash payback period:

Cash Payback Period = 4.7 years (rounded to one decimal place)

Therefore, the cash payback period for the project is 4.7 years.

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Find sin L, cos L, tan L., sin M, cos M, and tan M when = 12, m= 12√3, and n = 24. Match each ratio to the corresponding trigonometric
expression.

Answers

The values of the a gles using trigonometric ratios are;

tan L = (1/√3)

sin L = 0.5

cos L = ½√3

sin M = 2/√3

cos M = 0.5

How to Use trigonometric ratios?

The three most basic trigonometric ratios are;

sin x = opposite/hypotenuse

cos x = adjacent/hypotenuse

tan x = opposite/adjacent

We are given;

l = 12

m = 12√3

n = 24

Using trigonometric ratios, we have;

12/(12√3) = tan L

tan L = (1/√3)

L = tan¯¹(1/√3)

L = 30°

Similarly;

12/24 = sin L

sin L = 0.5

cos L = (12√3)/24

cos L = ½√3

Similarly;

sin M = 24/12√3

sin M = 2/√3

cos M = 12/24

cos M = 0.5

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The solid below is dilated by a scale factor of . Find the surface area of the solid
created upon dilation.

Answers

The surface area of the solid created upon dilation is equal to 36 units².

How to calculate surface area of a cylinder?

In Mathematics and Geometry, the surface area (SA) of a cylinder can be calculated by using this mathematical equation (formula):

SA = 2πrh + 2πr²

Where:

h represents the height.r represents the radius.

By substituting the given parameters into the formula for the surface area (SA) of a cylinder, we have the following;

Surface area = 2πrh + 2πr²

Surface area = 2(π)(9)(9) + 2(π)(9²)

Surface area = 324π units²

After applying a dilation with a scale factor of 1/3, the surface area of the cylinder is given by;

Surface area = 324π × (1/3)²

Surface area = 324π × 1/9

Surface area = 36 units²

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Can someone please help me I don’t understand

Answers

The one to one functions in the options includes

Graph 1Graph 4Graph 6

What is one to one functions?

A one-to-one function, also known as an injective function, is a type of function in mathematics where every element in the domain maps to a unique element in the range.

So we can say that, each input value corresponds to exactly one output value, and no two distinct input values have the same output value.

Graphically, one-to-one functions pass the horizontal line test, meaning that no horizontal line intersects the graph of the function more than once.

Applying the horizontal line test shows that the one-to-one function are: Graph 1, 4 and 6

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Substitute the supplied value and simplify both sides of the equation, if necessary. Then decide if the supplied value is or is not a solution.

m + 2(m + 1) = 14 {4}

Answers

The supplied value 4 is a solution to the equation m + 2(m + 1) = 14.

Is the supplied value {4} a solution to the given equation?

To solve the equation m + 2(m + 1) = 14 for the supplied value of m = 4, we substitute the value of m into the equation and simplify both sides of the equation.

First, we replace every occurrence of m in the equation with 4:

m + 2(m + 1) = 14

Substitute m with 4

4 + 2(4 + 1) = 14

The parentheses around (4 + 1) indicate that we need to add 4 and 1 together first, before multiplying by 2. This gives us:

4 + 2(5) = 14

We simplify further by performing the multiplication:

4 + 10 = 14

14 = 14

Therefore, when we substitute m = 4 into the equation, we get a true statement. Therefore, 4 is a solution to the equation.

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Please help I’m really bad at this

Answers

Answer:

the first one

Step-by-step explanation:

you move N to the left of the equation,

and then K to the right of the equation.

voila.

The lateral area of a cone is 587 pi symbol cm^2. The radius is 32cm. Finf the slant height to the nearest tenth.

Answers

Answer:

The lateral area of a cone is given by the formula:

L = πrs

Where r is the radius of the base, s is the slant height, and π is pi.

We are given that the lateral area L is 587π cm^2 and the radius r is 32 cm. Substituting these values into the formula, we get:

587π = π(32)s

Simplifying, we can cancel the π on both sides of the equation:

587 = 32s

Dividing both sides by 32, we get:

s = 18.34375

Rounding to the nearest tenth, we get:

s ≈ 18.3 cm

Therefore, the slant height is approximately 18.3 cm.

Step-by-step explanation:

Write an equation in slope intercept form for the line perpendicular to y= -2x +9 and containing the point (4,-3)

Answers

Step-by-step explanation:

lets call the line (d)

amd the given eq of the line is (d')

so (d) is perpendicular to (d')

slope(d)×slope(d')=-1

-2(1/2)=-1

so (d): y=1/2x + b

point A (4, -3) belongs to (d) so,

Ya=1/2Xa+b

-3=1/2(4)+b

b=-5

(d):y=1/2x-5

Manny's grocery store has a rectangular logo for their business that measures 1.9 meters long with an area that is exactly the maximum area allowed by the building owner.


Create an equation that could be used to determine L, the unknown side length of the logo.

Answers

Let's let L be the unknown side length of the logo, in meters. The area of the logo is given by the formula:

Area = length x width

Since we know that the logo is rectangular and that the length is 1.9 meters, we can write:

Area = 1.9L

We also know that the area is exactly the maximum area allowed by the building owner. Let's call this maximum area A. Then we can write:

Area = A

Putting these two equations together, we get:

1.9L = A

This is the equation that could be used to determine L, the unknown side length of the logo, based on the maximum area allowed by the building owner. To solve for L, we can simply divide both sides of the equation by 1.9:

L = A/1.9

Therefore, the length L of the logo is equal to the maximum area allowed by the building owner, divided by 1.9 meters.

(cscx+sexc)/(sinx + cosx) = cotx + tanx

Answers

It is true. The trigonometric identity  [tex]\frac{cscx+secx}{sinx + cosx}[/tex] = cotx + tanx

How do we verify or prove that the trigonometric identity (cscx+secx)/(sinx + cosx) = cotx + tanx?

To verify that (cscx+secx)/(sinx + cosx) = cotx + tanx

csc = [tex]\frac{1}{sin}[/tex]  and Sec = [tex]\frac{1}{cos}[/tex]

If we insert the values, it would be

[tex]\frac{ 1/sinx + 1/cosx}{sinx + cosx}[/tex]

= [tex]\frac{cosx + sinx}{sinx * cosx}[/tex] ÷  ([tex]\frac{1}{sinx + cosx}[/tex])

= [tex]\frac{1}{sinx * cosx}[/tex]

[tex]\frac{Sin^2 x + Cos^2x}{Sin x Cos x}[/tex]  =  [tex]\frac{Sin^2x}{SinxCosx}[/tex]  +  [tex]\frac{Cos^2x}{SinxCosx}[/tex]

= cotx + Tanx

Mind you

cotx = [tex]\frac{1}{tanx}[/tex] = [tex]\frac{cosx}{sinx}[/tex]

tanx = [tex]\frac{sinx}{cosx}[/tex]

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A sphere has a radius of 4 in choose true or false for each statement

Answers

The true statements are (a) A sphere with half the radius has 1/8 of the volume and (c) A sphere with 3 times the radius has 27 times the volume

Finding the true statements from the radius and volume

Given that the radius of the sphere is represented as

Radius, r = 4 inches

The formula of the volume of the sphere is represented as

V = 4/3πr³

For the transformed volume, we have

V₂ = 4/3πR³

Where

R = kr and k is the scale factor

So, we have

V₂ = 4/3π(kr)³

V₂ = 4/3πr³k³

This gives

V₂ = Vk³

Testing the statements, we have

(a) A sphere with half the radius has 1/8 of the volume

V₂ = V(1/2)³

Evaluate

V₂ = 1/8V

So, the statement is true

(b) A sphere with twice the radius has 6 times the volume

V₂ = V(2)³

Evaluate

V₂ = 8V

So, the statement is false

(c) A sphere with 3 times the radius has 27 times the volume

V₂ = V(3)³

Evaluate

V₂ = 27V

So, the statement is true

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Complete question

A sphere has a radius of 4 inches.

Choose True or False for each statement.

(a) A sphere with half the radius has 1/8 of the volume

(b) A sphere with twice the radius has 6 times the volume

(c) A sphere with 3 times the radius has 27 times the volume

party opposed to expanding slavery (2 words, section 1)

Answers

Answer:

The party opposed to expanding slavery in the United States was the Republican Party. It was actually formed to go against slavery.  

A fair spinner is number from one to four the result of 28 spins are shown below, for which number does the theoretical probability match the experimental probability

Answers

The number 2 is the one for which the theoretical probability matches the experimental probability.

How to determine which number does the theoretical probability match the experimental probability

To determine which number has a theoretical probability that matches the experimental probability, we need to calculate both the theoretical and experimental probabilities for each of the four numbers.

The theoretical probability of spinning any one of the four numbers is 1/4, or 0.25. This is because there are four equally likely outcomes, and each outcome has a probability of 1/4.

To calculate the experimental probability, we need to count the number of times each number was spun and divide by the total number of spins. Here are the results:

- Number 1 was spun 9 times out of 28 spins, so its experimental probability is 9/28, or approximately 0.321.

- Number 2 was spun 7 times out of 28 spins, so its experimental probability is 7/28, or approximately 0.250.

- Number 3 was spun 6 times out of 28 spins, so its experimental probability is 6/28, or approximately 0.214.

- Number 4 was spun 6 times out of 28 spins, so its experimental probability is 6/28, or approximately 0.214.

To find the number that has a theoretical probability that matches the experimental probability, we can compare the theoretical probability to each of the experimental probabilities. The number that has an experimental probability that is closest to the theoretical probability of 0.25 is number 2, which has an experimental probability of approximately 0.250.

Therefore, the number 2 is the one for which the theoretical probability matches the experimental probability.

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What is 0.81818181818 as a fraction in its simplest

Answers

81/100
I think this is what you mean

5000 people attend a match 50 people win a T-shirt whats the probability of winning a T-shirt

Answers

0.01 , 1/10, 1 percentage

Which of the points below correctly plots the point (2,7π/4)?
Points are plotted on a polar graph.

Answers

Answer: E is correct

Step-by-step explanation:

Remember that the coordinates (2,7π4) tell us the radius r=2 and the angle θ=7π4. So the point should be on the circle labeled 2 and form an angle of 7π4 with the positive x-axis. Point E is the correct point.

Find cos(2π/3) I need help

Answers

Answer:

We can use the cosine double angle formula to find cos(2π/3):

cos(2θ) = cos^2(θ) - sin^2(θ)

Letting θ = π/3, we get:

cos(2π/3) = cos^2(π/3) - sin^2(π/3)

Using the values of cosine and sine of π/3 (which are known), we have:

cos(2π/3) = (1/2)^2 - (√3/2)^2

Simplifying, we get:

cos(2π/3) = 1/4 - 3/4

cos(2π/3) = -1/2

Therefore, cos(2π/3) is equal to -1/2.

Answer:

cos(2π/3) = cos(π/3 + π/3)

= cos²(π/3) - sin²(π/3)

= (1/2)² - (√3/2)²

= 1/4 - 3/4

= -2/4

= -1/2

Step-by-step explanation:

here are the steps:

Convert 2π/3 to degrees: 2π/3 * (180/π) = 120°Use the double angle formula for cosine: cos(2θ) = cos²(θ) - sin²(θ)Substitute π/3 for θ: cos(2π/3) = cos²(π/3) - sin²(π/3)Use the values of cosine and sine of π/3 from the unit circle: cos(π/3) = 1/2 and sin(π/3) = √3/2Substitute these values into the formula: cos(2π/3) = (1/2)² - (√3/2)²Simplify the expression inside the parentheses: cos(2π/3) = 1/4 - 3/4Combine like terms: cos(2π/3) = -2/4Simplify the fraction: cos(2π/3) = -1/2

Therefore, cos(2π/3) = -1/2

Help guys come on I believe in you tell me answer

Answers

Answer:

a) 3/4

b) 21/4  

Step-by-step explanation:

To find the scale factor from A to B take any side of B and divide it by the corresponding side of A

The ratio will be the same for all sides

We have
scale factor = 3/4

We see that the sides 9 and 12 are also in this ratio: 9/12 = 3/4

a) So scale factor from A to B is 3/4

b) w of shape B corresponds to the side with length 7 in shape A

The ratio of w to 7 must be equal to the scale factor

So w/7 = 3/4

w = 7 x 3/4

w = 21/4

Select all functions that have a y-intercept of 0,5. I need help (posts test!!!)

Answers

It’s easy , just put x=0
1) becomes 7-2=5
2) becomes -5+10=5
3) I cannot see clearly because of the mouse but if the number is not zero, it’s not the answer
4) becomes 2+5=7
5) becomes -3-5=-8
So the answers are 1,2
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