PLEASE HELP ME OUT !

PLEASE HELP ME OUT !

Answers

Answer 1

[tex]

\sin(\beta)=\frac{y}{h} \\

\sin(27)=\frac{y}{350} \\

y=350\sin(27)\approx\boxed{158.9}

[/tex]


Related Questions

You put $400 in a savings account. The account earns 2% simple interest per year. A. What is the interest earned after 6 years? The interest earned is $ after 6 years. B. What is the balance after 6 years? The balance is $ after 6 years.

Answers

Step-by-step explanation:

for the each year, the interest is increased by 2%,

so after 1 year, earned interest is 2% of $400

=2/100 × 400=$8

so the earned balance is $(400+8)=$408

so after 2 year, earned interest is 2% of $408

=2/100 × 408=$8.16

so the earned balance is $(408+8.16)=$416.16

after 3 year, earned interest is 2% of $416.16

=2/100 × 416.16=$8.32

so the earned balance is $(416.16+8.32)=$424.48

after 4 year, earned interest is 2% of $424.48

=2/100 × 424.48=$8.48

so the earned balance is $(424.48+8.48)=$480.48

after 5 year, earned interest is 2% of $480.48

=2/100 × 480.48=$9.6

so the earned balance is $(480.48+9.6)=$490.08

after 6 year, earned interest is 2% of $490.08

=2/100 × 490.08=$9.8

so the earned balance is $(490.08+9.8)=$499.88

therefore the interest earned after 6 years is

$(8+8.16+8.32+8.48+9.6+9.8)=$52.36

and the balance after 6 years is $499.88

Find the greatest common factor: 24y^8 + 6y^6

Answers

Find the Greatest Common Factor (GCF)

GCF = 6y^6

Factor out the GCF. (Write the GCF first. Then, in parenthesis divide each term by the GCF.)

6y^6(24y^8/6y^6 + 6y^6/6y^6)

Simplify each term in parenthesis

6y^6(4y^2 + 1)

100 POINTS+BRAINLIEST!!! MATH

A diameter of a circle has endpoints P(-10, -2) and Q(4,6)

a. Find the center of the circle.
b. Find the radius. If your answer is not an integer, express it in radical form.
c. Write an equation for the circle.

If your answer is incorrect/incomplete or you are just answering for the points, your answer will be reported and removed and the points will get refunded.

Answers

P and Q are endpoints, so the center of the circle would be the midway point.

A. The midpoint is found using:

(x1 + x2 /2 , y1 +y2 /2)

-10 + 4 = -6 /2 = -3

-2 + 6 = 4 /2 = 2

The center of the circle is at (-3,2)

B) The radius would be the distance from the midpoint to an end point.

Using the distance formula:

√((x2-x1)^2 + (y2-y1)^2)

√(4 - -3^2 + 6-2^2)

√(7^2 + 4^2)

√(49+16)

√65

C) Using the circle equation form of (x-h)^2 + (y-k)^2 = r^2

H,K is the center point found in part A and r is the radius found in part B.

The equation becomes (x-(-3))^2 + (y -2)^2 = √65^2

Which simplifies to: (x+3)^2 + (y-2)^2 = 65

Erin planted t tomato plants. Leo planted 5 fewer tomato plants than Erin. Filipe planted 10 fewer tomato plants than Erin. Drag and drop the expressions into the boxes to write an expression that represents the total number of tomato plants Erin, Leo, and Filipe planted in all.

Answers

Answer:

Total number of plants = 3t - 15 = 3(t-5) tomato plants

Explanation:

We are given that:

Erin planted t tomato plants

Leo planted 5 fewer tomato plants than Erin, this means that:

Leo planted = t - 5 tomato plants

Fillip planted 10 fewer tomato plants than Erin, this means that:

Fillip planted = t - 10 tomato plants

Now, we want to find the total number of tomato plants

This means that we will add the number of plants planted by Erin, Leo and Fillip

Therefore:

Total number of plants = t + t - 5 + t - 10

Total number of plants = 3t - 15 = 3(t-5) tomato plants

Hope this helps :)

Final answer:

The expression that represents the total number of tomato plants Erin, Leo, and Filipe planted is 3t - 15, where t is the number of plants Erin planted.

Explanation:

If Erin planted t tomato plants, then we can express the number of tomato plants Leo and Filipe planted using algebraic expressions that are based on this initial quantity. Leo planted 5 fewer tomato plants than Erin, so we can describe the number of plants Leo planted as t - 5. Similarly, Filipe planted 10 fewer tomato plants than Erin, and his number can be represented by t - 10.

To find the total number of tomato plants all three of them planted together, you would add these expressions:

Total number of plants = Erin's plants + Leo's plants + Filipe's plants

Total = t + (t - 5) + (t - 10)

Simplify the expression by combining like terms:

Total = t + t - 5 + t - 10

Total = 3t - 15

So the expression that represents the total number of tomato plants Erin, Leo, and Filipe planted in all is 3t - 15.

Please please help me

Answers

Answer:

(x - 3)² + (y - 2)² = 17

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r the radius

here (h, k) = A(3,2), thus

(x - 3)² + (y - 2)² = r²

The radius is the distance from the centre to a point on the circle

Calculate r using the distance formula

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (3, 2) and (x₂, y₂ ) = (- 1, 1) ← point on circle

r = [tex]\sqrt{(-1-3)^2+(1-2)^2}[/tex] = [tex]\sqrt{(-4)^2+(-1)^2}[/tex] = [tex]\sqrt{17}[/tex]

Hence r² = ([tex]\sqrt{17}[/tex] )² = 17

(x - 3)² + (y - 2)² = 17 ← equation of circle

Warren measured a rectangular window to find out how much plastic he would need to cover it. The window measured 5 ft 6 inches by 2 ft 9 inches. About how many square inches of plastic does Warren need to cover the window?

Answers

5 feet 6 inches is equal to ((5*12)+6) inches, which is equal to 66 inches since 5*12=60 and 60+6=66

2 feet 9 inches is equal to ((2*12)+9) inches, which is equal to 33 inches since 2*12=24 and 24+9=33

Since 66 and 33 are the length and width (there isn't any specific order as to which measurement is the length or width) and the question is asking for square inches,(which is the area) so what needs to be done next is 66*33, which equals 2178, the square inches of plastic needed is 2718 square inches.

I couldn't keep the answer in the format of _ft _in because they are asking for the area in inches, and I don't think it would be smart to convert inches to decimal values of feet for reasons I won't talk about.

So yeah, your answer is 2178 square inches of plastic.

(Pleaseeee dont ignore, need help) ❗️ Find the value of X.

Answers

Answer:

23.

Using Thales theorem, we have:

AP/BP = AQ/CQ

=> 8/40 = x/45

=> x = (45 · 8)/40 = 9

24.

Also using Thales theorem, we have:

5/6 = (x - 1)/12

x - 1 = (12 · 5)/6 = 60/6 = 10

x     = 10 + 1 = 11

25.

Because we already have the bisector, we know that:

x/6.9 = 18.3/6.2

x        = (6.9 · 18.3)/6.2 ≈ 20.4

Hopefully all of them are correct

An object is launched into the air. The projectile motion of the object can be modeled using the function h(t) = –16t2 + 72t + 5, where t is the time in seconds since the launch and h(t) represents the height in feet of the object after t seconds. What is true about the projectile motion of this object?

Answers

Answer:

Step-by-step explanation:

Height is 5 feet

What is the volume of the prism given below? The height is 3 and the bases are 8 and 12.

Answers

Answer:

Your answer would be 288

Step-by-step explanation:

You start off with the equation ( V= Bh )

Where "B" represents the area of the base ( which case you multiply 8 and 12 and thus getting 96 as your answer for finding "B")

and Lastly you multiply your "B" with the "h" ( which represents the height) and therefore you multiply 96 and 3

which equals to 288

( hope this helps )

Answer: 144

Step-by-step explanation:

PLEASE HELP DUE TOMORROW


Explain how the formulas V = lwh and V = Bh are alike

Answers

Both formulas are alike because they both find the Volume of a shape.

Is ΔFGH~ΔJKL? If so, identify the similarity postulate or theorem that applies.

Answers

Answer:

Correct choice is  C. Similar AA.

Step-by-step explanation:

We have been given a picutre of the triangles. Using those information we need to find the correct choice.

Consider triangle FGH and triangle JKL.

∠F≅∠J  {Both are equal to 30°}

∠H≅∠L  {Both are equal to 50°}

Then triangle  FGH is similar to the triangle JKL by AA - similarity of the triangle. Because we are getting two congruent angle pairs.

Hence correct choice is  C. Similar AA.

which of the following can be determined from the table above?

A. events D and A are independent

B. events D and B are independent

C. events A and B are independent

D. events E and B are independent

Answers

Answer:

D. Events E and B are independent.

Step-by-step explanation:

It can be determined that Events E and B are independent. The correct answer is: D.

To determine independence between events, we can use the formula:

[tex]\[ P(A \cap B) = P(A) \times P(B) \][/tex]

Let's check for events D and A:

[tex]\[ P(D \cap A) = 0.2 \][/tex]

[tex]\[ P(D) \times P(A) = 0.5 \times 0.2 = 0.1 \][/tex]

Since [tex]\(0.2 \neq 0.1\),[/tex] events D and A are not independent.

Checking for events D and B:

[tex]\[ P(D \cap B) = 0.3 \][/tex]

[tex]\[ P(D) \times P(B) = 0.5 \times 0.3 = 0.15 \][/tex]

Since [tex]\(0.3 = 0.15\)[/tex], events D and B are independent.

Similarly, events A and B:

[tex]\[ P(A \cap B) = 0.15 \][/tex]

[tex]\[ P(A) \times P(B) = 0.2 \times 0.5 = 0.1 \][/tex]

Since [tex]\(0.15 \neq 0.1\)[/tex],events A and B are not independent.

For events E and B:

[tex]\[ P(E \cap B) = 0.15 \][/tex]

[tex]\[ P(E) \times P(B) = 0.3 \times 0.5 = 0.15 \][/tex]

Since [tex]\(0.15 = 0.15\)[/tex], events E and B are independent.

Therefore, the correct answer is: D. Events E and B are independent.

Given: mTP= 70°,m∠EPT = 54° Find: Angles of △SPT

Answers

Answer:

The Angles of △SPT are

[tex]m\angle STP=35\°[/tex]  

[tex]m\angle SPT=126\°[/tex]

[tex]m\angle PST=19\°[/tex]

Step-by-step explanation:

step 1

Find the measure of angle PET

we know that

The inscribed angle is half that of the arc it comprises.

[tex]m\angle PET=\frac{1}{2}(arc\ PT)[/tex]

substitute the given values

[tex]m\angle PET=\frac{1}{2}(70\°)[/tex]

[tex]m\angle PET=35\°[/tex]

step 2

Find the measure of angle PTE

we know that

The sum of internal angles of a triangle must be equal to 180 degrees

In the triangle PET

[tex]m\angle PET+m\angle EPT+m\angle PTE=180\°[/tex]

substitute the given values

[tex]35\°+54\°+m\angle PTE=180\°[/tex]

[tex]m\angle PTE=180\°-89\°=91\°[/tex]

step 3

Find the measure of angle STP  

we know that

The inscribed angle is half that of the arc it comprises.

[tex]m\angle STP=\frac{1}{2}(arc\ TP)[/tex]

substitute the given values

[tex]m\angle STP=\frac{1}{2}(70\°)=35\°[/tex]

step 4

Find the measure of angle SPT

we know that

[tex]m\angle SPT+m\angle EPT=180\°[/tex] ----> by supplementary angles

[tex]m\angle SPT+54\°=180\°[/tex]

[tex]m\angle SPT=180\°-54\°=126\°[/tex]

step 5

Find the measure of angle PST

we know that

The sum of internal angles of a triangle must be equal to 180 degrees

In the triangle SPT

[tex]m\angle STP+m\angle SPT+m\angle PST=180\°[/tex]

substitute the given values

[tex]35\°+126\°+m\angle PST=180\°[/tex]

[tex]m\angle PST=180\°-161\°=19\°[/tex]

Pls help!!!

The tip of a probe has the shape of an inverted rectangular prism, as shown in the diagram.

How many cubic centimeters of titanium are needed to manufacture one tip?

Answers

Answer:

The area of the base B is equal to [tex]770\ cm^{2}[/tex]

The volume  is equal to [tex]10,087\ cm^{3}[/tex]

Step-by-step explanation:

I will proceed to resolve the problem indicated in the attached figure.

The figure shown a inverted rectangular pyramid

The base is a rectangle

The area of the base B is equal to

[tex]B=(35)(22)=770\ cm^{2}[/tex]

To find how many cubic centimeters of titanium are needed to manufacture one tip, calculate the volume of the figure

Find the volume of the inverted rectangular pyramid

The volume of the pyramid is equal to

[tex]V=\frac{1}{3}BH[/tex]

we have

[tex]B=770\ cm^{2}[/tex]

[tex]H=39.3\ cm[/tex]

substitute

[tex]V=\frac{1}{3}(770)(39.3)=10,087\ cm^{3}[/tex]

A group of 40 people went to the theme park. While there, each person bought popcorn. Regular bags of popcorn sold for $6 per bag. Super size sold for $8 per bag. The group's popcorn bill was $286. How many super size bags did the group buy?

A) 19
B) 21
C) 23
D) 25

Answers

Answer: C.

Step-by-step explanation: popcorn are made out of corn

Answer is D (: !!!!!!!!!!

.
Match each expression with its value if x = -3.

1.
21

2.
9

3.
-12

4.
-18


a.
6x

b.
4x

c.
-3x

d.
-7x

Answers

For this case we have the variable [tex]x = -3[/tex]:

[tex]A) 6x = 6 (-3) = - 18\\B) 4x = 4 (-3) = - 12\\C) -3x = -3 (-3) = + 9\\D) -7x = -7 (-3) = + 21[/tex]

Now, matching each expression with its value we have:

A goes with 4

B goes with 3

C goes with 2

D goes with 1

ANswer:

A goes with 4

B goes with 3

C goes with 2

D goes with 1

4. A discus is thrown from a height of 4 feet with an initial velocity of 65 ft/s at an angle of 44° with the horizontal. How long will it take for the discus to reach the ground?

Answers

I believe the time would be about 4 seconds

Answer:

9.29 seconds

Step-by-step explanation:

Attached is my work because it's difficult to type

Attached is an image of where I got my equations from

the answer may be wrong

Bowl I contains eight red balls and six blue balls. Bowl II is empty. Four balls are selected at random, without replacement, and transferred from bowl I to bowl II. One ball is then selected at random from bowl II. Calculate the conditional probability that two red balls and two blue balls were transferred from bowl I to bowl II, given that the ball selected from bowl II is blue.

Answers

Final answer:

To calculate the conditional probability, we need to find the probability of transferring two red balls and two blue balls from Bowl I to Bowl II and the probability of selecting a blue ball from Bowl II which is 0.0923


Explanation:

To calculate the conditional probability, we need to find the probability of transferring two red balls and two blue balls from Bowl I to Bowl II and the probability of selecting a blue ball from Bowl II.

First, we calculate the probability of transferring two red balls and two blue balls from Bowl I to Bowl II. There are 14 balls in Bowl I, so the probability of transferring a red ball on the first draw is 8/14. After transferring one red ball, there are now 13 balls in Bowl I, so the probability of transferring another red ball is 7/13. Similarly, the probability of transferring a blue ball on the first draw is 6/14, and the probability of transferring another blue ball is 5/13. To find the overall probability, we multiply these probabilities: (8/14) * (7/13) * (6/14) * (5/13).

Next, we calculate the probability of selecting a blue ball from Bowl II. After transferring four balls from Bowl I, there are now 10 balls in Bowl II, with 6 blue balls. The probability of selecting a blue ball is therefore 6/10.

Finally, we calculate the conditional probability by dividing the probability of transferring two red balls and two blue balls from Bowl I to Bowl II by the probability of selecting a blue ball from Bowl II:

= (8/14) * (7/13) * (6/14) * (5/13) / (6/10)

= 0.0923 (rounded to four decimal places).

Learn more about conditional probability here:

https://brainly.com/question/32171649

#SPJ12

Please help me out please

Answers

Answer:

V = 400

Step-by-step explanation:

The volume (V) of the pyramid is

V = [tex]\frac{1}{3}[/tex] area of base × perpendicular height (h)

Consider a right triangle from the vertex to the midpoint of the base across to the slant height, with hypotenuse of 13

Using Pythagoras' identity on the right triangle, then

h² + 5² = 13²

h² + 25 = 169 ( subtract 25 from both sides )

h² = 144 ( take the square root of both sides )

h = [tex]\sqrt{144}[/tex] = 12

Area of square base = 10² = 100, thus

V = [tex]\frac{1}{3}[/tex] × 100 × 12 = 4 × 100 = 400

A square pyramid is shown below: A square pyramid is shown. The sides of the square base are labeled 0.8 foot. The height of one of the triangular sides is labeled 6 feet. What is the surface area of the pyramid? 4.41 square feet 5.44 square feet 1.84 square feet 10.24 square feet

Answers

Answer:

  10.24 square feet

Step-by-step explanation:

The area of one triangular face is ...

  A = (1/2)bh = (1/2)(0.8 ft)(6 ft) = 2.4 ft²

Then the four triangular faces will have a total area of ...

  lateral area = 4·(2.4 ft²) = 9.6 ft² . . . . . sufficient to help you choose the correct answer

__

The area of the square base is the square of the side length:

  base area = (0.8 ft)² = 0.64 ft²

Then the total surface area is ...

  surface area = lateral area + base area

  surface area = 9.6 ft² + 0.64 ft² = 10.24 ft²

You would multiply the Area of a square which is B x H the Area for the square is 0.8 x 0.8 = 0.64

Then you multiply the Area of a triangle and the Area of a triangle is B x H divided by 2  and so you multiply the number of triangles there are which is 0.8 x 6 = 4.8 then divide that by 2 which is 2.4 then multiply that with the number of triangles we have all together. there are 4 triangles.

Multiply 2.4 x 4 = 9.6 then add the Area of the square which is 0.64 + 9.6 and the answer is 10.24  

Hope this helps

What are the slope and the y-intercept of the linear function that is represented by the equation y=9x-2? The slope is –2, and the y-intercept is 9. The slope is 2, and they y-intercept is 9. The slope is 9, and the y-intercept is –2. The slope is 9, and the y-intercept is 2.

Answers

Hello there!

Answer:

The slope is 9, and the y-intercept is –2

Step-by-step explanation:

The equation is y = 9x - 2

This follows the equation y = mx + b

Where as:

m = slope

b = y-intercept

When you know this, you would figure out that 9 is in the same place as m, and -2 is in the same place as b.

The y-intercept would not be a positive 2 because when there's a minus sign next to the number in the y-intercept spot, then you would have to bring that over to the number. We can also say the minus sign belongs to the 2, making it a -2.

With the information we know now, we can say that the slope of the equation is 9, and the y-intercept would be -2.

Therefore, giving your answer as "The slope is 9, and the y-intercept is –2"

Final answer:

The slope of the linear function represented by y=9x-2 is 9, and the y-intercept is -2. This is determined by comparing the equation to the slope-intercept form y = mx + b.

Explanation:

The slope and y-intercept of the linear function represented by the equation y=9x-2 can be identified by comparing it to the slope-intercept form of a linear equation, which is y = mx + b, where m is the slope and b is the y-intercept. In the given equation, 9 is the coefficient of x, which means it is the slope of the line. The constant term, -2, is the y-intercept because it indicates the point at which the line crosses the y-axis.

What is the equation of the line of best fit for the following data? Round the slope and y intercept of the line to three decimal places

Answers

Answer:

Choice B

Step-by-step explanation:

We can perform a least squares regression model in Ms. Excel to determine the equation of the line of best fit for the data given;

The first step is to enter the data into any two adjacent columns of an excel workbook. Next, click on the Data ribbon followed by the Data Analysis tool pack. We then proceed to select regression from the pop-up window. The final step is to select the y range and the x range of values from our data.

Once we click ok, Excel returns our least squares regression model as shown in the attachment below.

The coefficient of X variable 1 is our slope.

Answer:

b

Step-by-step explanation:

Greatest to least

2 4/5 , 2 3/20 , 2 1/2 , 2 11/20 , 2 9/20

Answers

Answer:

2 (4/5) = 2.80

2 (11/20) = 2.55

2 (1/2) = 2.50

2 (9/20) = 2.45

2 (3/20) = 2.15

Step-by-step explanation:

100 POINTS, THANKS, 5 STARS, AND BRAINLIEST FOR GOOD ANSWERS!! HURRY!! BAD ANSWERS WILL BE REPORTED AND DELETED, REVOKING ALL POINTS YOU RECEIVED FROM ANSWERING!



Can someone help me create a good conclusion for this?



In the book Mice and Men, dreams are a driving theme as well as a form of characterization. This novel specifically focuses on “The American Dream”. Each character has their own dream. At one point or another, each of these characters’ dreams are ruined by one force or another.



Steinbach most likely used dreams as a driving theme to really explain each character’s viewpoint and feelings. He also may have done this to justify each character’s actions throughout the book. Along with this, he may have wanted to be able to create tension and conflicts in different places in the novel.



Dreams symbolize each character’s goal in life and how it is unattainable from most if not all means. The characters in this book all have one dream or another, yet none of them are capable to fully (for some characters, not even partially) fulfilling that dream. Along with that, I feel like the constant deaths in the book represent the feebleness of life in general.



I believe many authors use dreams as symbolism to create a drive for their characters. In this book, George and Lenny’s dream is to have a farm (Lenny mostly wanting to tend to the rabbits. This dream is ruined by a large series of events, for example, Lenny killing the Rabbit, Lenny killing Candy’s dog, Lenny killing Curly’s wife, and George killing Lenny.

Answers

Answer:

In conclusion, dreams are the driving theme and characterization in the novel. They help explain each character's motivation for the actions they take and the way they feel. All of the characters have a obstacles in their life stopping them from reaching their goal. Authors use dreams to give their characters something to live for and strive for. Without the character's dreams and goals for the future, the characters would have nothing to work towards and they would be much less complex  

A conclusion for an essay on dreams in 'Of Mice and Men' should discuss the portrayal of the elusive American Dream, the use of dreams as a literary device, and the reflection of societal constraints and collective unconscious.

When crafting a conclusion for an essay about the theme of dreams in Of Mice and Men, you must strive to encapsulate the essence of the theme and its impact on the characters and the reader's understanding of the novel's message. The unattainable nature of the American Dream is vividly portrayed through the characters' struggles, symbolizing the universal experience of aspiration and loss. While each character harbors personal ambitions, the novel ultimately reveals the harsh reality of shattered dreams and the perseverance of hope, despite life's unpredictable and often tragic course. Understanding the role of dreams as a literary tool employed by John Steinbeck deepens one’s appreciation for his exploration of the human psyche and the societal constraints of the time period. Dreams in Steinbeck’s work reflect a combination of the characters' inner desires and the collective unconscious that connects them to the broader human experience, as Carl Jung would suggest.

PLEASE HELP ASAP!!!! Thanks!!
The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 10 cm, and its area is 12 cm2. Find the radius of the inscribed circle.

Answers

Answer:

1.2 cm

Step-by-step explanation:

Quadrilateral circumscribing a circle is a quadrangle whose sides are tangent to a circle inside it (see attached diagram).

The area of circumscribed quadrilateral is

[tex]A=p\cdot r,[/tex]

where [tex]p=\dfrac{a+b+c+d}{2}[/tex] is semi-perimeter and r is radius of inscribed circle.

In your case, [tex]A=12\ cm^2[/tex]

If a quadrilateral is circumscribed over the circle, then the sum of opposite sides is equal, so

[tex]a+c=b+d=10\ cm,[/tex]

so

[tex]P=10+10=20\ cm\\ \\p=\dfrac{20}{2}=10\ cm[/tex]

Now

[tex]12=10\cdot r\Rightarrow r=\dfrac{12}{10}=1.2\ cm[/tex]

Please please help me out

Answers

Answer:

A trinomial of degree 5

Step-by-step explanation:

A monomial has only 1 term

A binomial has 2 terms

A trinomial has 3 terms

4[tex]x^{5}[/tex] + 3x³ - 7x ← has 3 terms and is therefore a trinomial

The degree of a polynomial is determined by the largest exponent of the variable in the expression

4[tex]x^{5}[/tex] is the term with the largest exponent in the expression

Hence a polynomial of degree 5

The sum of the measures of the interior angles of a polygon with n sides is

Answers

ANSWER

[tex](n - 2) \times 180 \degree[/tex]

EXPLANATION

The sum of the interior angles of a triangle is 180°

We can rewrite this as:

[tex]1 \times 180 \degree = (3 - 2) \times 180 \degree = 180 \degree[/tex]

The sum of interior angles of a quadrilateral is 360°

We can also rewrite this as:

[tex]2 \times 180 \degree = (4- 2) \times 180 \degree = 360 \degree[/tex]In general an n-sided polygon has

the sum of the interior angles given by the formula:

[tex](n - 2) \times 180[/tex]

I NEED IMMEDIATE HELP!!!!
Which products result in a difference of squares? Check all that apply.

[A] (x-y)(y-x)

[B] (6-y)(6-y)

[C] (3+xz)(-3+xz)

[D] (y^2-xy)(y^2+xy)

[E] (25x-7y)(-7y+25x)

[F] (64y^2+x^2)(-x^2+64y^2)

Answers

Hello!

The answers are:

C) [tex](3+xz)(-3+xz)[/tex]

D) [tex](y^2-xy)(y^2+xy)[/tex]

F) [tex](64y^2+x^2)(-x^2+64y^2)[/tex]

Why?

To know which of the products results in a difference of square, we need to remember the difference of squares from:

The difference of squares form is:

[tex](a+b)(a-b)=a^{2}-b^{2}[/tex]

So, discarding each of the given options in order to find which products result in a difference of squares, we have:

A)

[tex](x-y)(y-x)=xy-x^{2}-y^{2} +yx=-x^{2} -y^{2}[/tex]

So, the obtained expression is not a difference of squares.

B)

[tex](6-y)(6-y)=36-6y-6y+y^{2}=y^{2}-12y+36[/tex]

So, the obtained expression is not a difference of squares.

C)

[tex](3+xz)(-3+xz) =(xz+3)(xz-3)=(xz)^{2}-3xz+3xz-(3)^{2}\\\\(xz)^{2}-3xz+3xz-(3)^{2}=(xz)^{2}-(3)^{2}[/tex]

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

D)

[tex](y^2-xy)(y^2+xy)=(y^{2})^{2}+y^{2}*xy-y^{2}*xy-(xy)^{2} \\\\(y^{2})^{2}+y^{2}*xy-y^{2}*xy-(xy)^{2}=(y^{2})^{2}-(xy)^{2}[/tex]

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

E)

[tex](25x-7y)(-7y+25x)=-175xy+(25x)^{2}+49y^{2}-175xy\\\\-175xy+(25x)^{2}+49y^{2}-175xy=(25x)^{2}+49y^{2}-350xy[/tex]

So, the obtained expression is not a difference of squares

F)

[tex](64y^2+x^2)(-x^2+64y^2)=(64y^2+x^2)(64y^2-x^2)\\\\(64y^2+x^2)(64y^2-x^2)=(64y^{2})^{2} -(x^{2}*64y^{2})+(x^{2}*64y^{2})-(x^{2})^{2}\\ \\(64y^{2})^{2} -(x^{2}*64y^{2})+(x^{2}*64y^{2})-(x^{2})^{2}=(64y^{2})^{2}-(x^{2})^{2}[/tex]

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

Hence, the products that result in a difference of squares are:

C) [tex](3+xz)(-3+xz)[/tex]

D) [tex](y^2-xy)(y^2+xy)[/tex]

F) [tex](64y^2+x^2)(-x^2+64y^2)[/tex]

Have a nice day!

The length of a rectangle is (x+4) inches long and the width is 4 2/5 inches. If the area is 28 3/5 square inches wight and solve an equation to find the length of the rectangle

Answers

Area = length times width

Length = x + 4

Width = 4_2/5, which we can write as the improper fraction 22/5.

Area is given to be 28_3/5, which can be written as 143/5.

Here is the set up:

(143/5) = (x + 4)(22/5)

Take it from here.

find the radius of a cylinder with a volume of 108ft and height of 12 ft

Answers

Answer:

1.69 ft (approx.)

Step-by-step explanation:

Formula for Volume of cylinder: pi x radius squared x height

Plug in 108 for volume, 3.14 for pi and 12 for height:

108 = 3.14 x r squared x 12

Multiply 3.14 and 12

108 = 37.68 x r squared

Divide both sides by 37.68

2.87 = r squared

"Unsquare" both sides (square root)

1.69 ft. = radius (approximate answer, rounded to nearest hundredth)

Answer:

1.69 ft

Step-by-step explanation:

V = πr²h formula  of a cylinder.

Volume = 108 ft

Height = 12 ft

Radius = r

V = πr²h

108 ft = 22/7 × r² × 12 ft

π = 22/7 or 3.14

108 ft = 264/7r²

108 ft  = 37.71r²

divide both sides by 37.71

108 ft/37.71 =r²

2.86 ft = r²

square root both side

√2.86 ft = √r²

the square cancels the square root

1.69 ft.

                                 To check

V = πr²h

108 = 22/7 × (1.69)² 12

108 = 22/7 × 2.8561 × 12

108 = 107.61≈108

108 ft = 108 ft.

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