MATHEMATICS MIDDLE SCHOOL

A magician is doing a rope trick with a rope that is 7/8 ft long. During the trick he cuts a piece that is 1/6 of the original. How long is the cut piece?

Answers

Answer 1

Answer:

Total length of rope 7/8 feet long.

He cuts a piece that is 1/6 of the original length.

Let x = length of the cut piece.

Can you finish?

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4 times what equals 36

Answers

4 x 9 = 36. Plug it back in to see if it is true: 36 / 9 = 4.

Answer:

Step-by-step explanation:

Use a fact family.

36 divided by 4 is 9.

9 times 4 is 36 as well.

I am in the need, in the need for your help.

Answers

Answer:

1)2⋅p3⋅p⋅q+q2

=2⋅p^4⋅q+q^2

2) yes

Step-by-step explanation:

Hope that helps and feel free to ask me more questions :)

Brainliest??

Answer:

Step-by-step explanation:

Polynomial form is greatest to least....The correct way to write that equation would be x^5-x^3-7x^2+2

when you find the area of a polygon how do you know whether to compose or decompose? does it matter ?

Answers

You have to use a formula specific to that polygon.

What do you suppose a decimal value for a day in the month means

Answers

It would be 0 till the end of the month because that’s where it started from and when it’s going to end

Say you’re on the 14th day of a month, and it’s noon on the 14th. I’d assume a decimal place after the day would mean how far you are through that day

What is the surface area of the cylinder?Use a = 3.14 and round to the nearest tenth, if needed.
d= 4 cm
8.2 cm
OA) 32.8 cm2
OB) 128.1 cm2
OC) 103 cm2
OD) 422.3 cm?

Answers

$\qquad \qquad\large\rm{Together \: We \: Go \: Far!} \n \qquad \qquad \sf \small{\red{♡}\:Swifties\:\red{♡}}$

Question :-

A cylinder has a diameter of 4 cm and a height of 8.2 cm. What is the surface area of the cylinder?

Answer :-

The surface area of the cylinder is 128.112 cm². Thus, the 2nd option, B makes it as the correct answer.

$\rule{180pt}{3pt}$

Diagram :-

$\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{2 \: cm}}\put(9,17.5){\sf{8.2 \: cm}}\end{picture}$

Solution :-

As per the provided information in the given question, we have been given that the diameter of the cylinder is 4 cm. Thus, the radius of the cylinder is 2 cm. The height of the cylinder is 8.2 cm. We have been asked to find or calculate the surface area of the cylinder.

To calculate the surface area of the cylinder, we will use the formula below :-

$\bigstar \:\:\:\boxed{\sf{\:\:Surface \: Area_((Cylinder)) = 2\pi r^2 + 2\pi rh \:\:}}$

Substitute the given values into the above formula and solve for surfacearea:

$\sf:\implies Surface \: Area_((Cylinder)) = 2\pi r^2 + 2\pi rh$

$\sf:\implies Surface \: Area_((Cylinder)) = (2)(3.14)(2 \: cm)^2 + (2)(3.14)(2 \: cm)(8.2\:cm)$

$\sf:\implies Surface \: Area_((Cylinder)) = (2)(3.14)(4 \: cm^2) + (2)(3.14)(16.4\:cm^2)$

$\sf:\implies Surface \: Area_((Cylinder)) = (2)(12.56 \: cm^2) + (2)(51.496 \: cm^2)$

$\sf:\implies Surface \: Area_((Cylinder)) = 25.12 \: cm^2 + 102.992 \: cm^2$

$\sf:\implies \bf{Surface \: Area_((Cylinder)) = 128.112 \: cm^2}$

Therefore :-

The surface area of the cylinder is 128.112 cm². Thus, the 2ndoption, B makes it as the correctanswer.

$\n$

Learn more about the surface area of the cylinder at brainly.com/question/30914875

Have a great day! <33

Calcule o perímetro do retângulo, considerando raiz de 3= 1,7

Answers

C=a/2=8/2=4b=8. 1.7/2=6.8p=4+4+6.8+6.8=21.6m

The perimeter of the rectangle is 21.6 m

Further explanation

To solve the above questions, we need to recall some of the formulas as follows:

Area of Square = (Length of Side)²

Perimeter of Square = 4 × (Length of Side)

Area of Rectangle = Length × Width

Perimeter of Rectangle = 2 × ( Length + Width )

Area of Rhombus = ½ × ( Diagonal₁ + Diagonal₂ )

Perimeter of Rhombus = 4 × ( Length of Side )

Area of Kite = ½ × ( Diagonal₁ + Diagonal₂ )

Perimeter of Kite = 2 × ( Length of Side₁ + Length of Side₂ )

Let us now tackle the problem !

Given:

Length of Diagonal = d = 8 m

Angle Between Diagonal and Width = θ = 60°

Unknown:

Perimeter = ?

Solution:

See the picture in the attachment ,

$\sin \theta = (BC)/(AC)$

$\sin 60^o = (BC)/(8)$

$(1)/(2) √(3) = (BC)/(8)$

$BC = 8 * (1)/(2) √(3)$

$BC = 4 √(3)$

$BC = 4(1.7)$

$\boxed {BC = 6.8 ~ m}$

$\cos \theta = (AB)/(AC)$

$\cos 60^o = (AB)/(8)$

$(1)/(2) = (AB)/(8)$

$AB = 8 * (1)/(2)$

$\boxed {AB = 4 ~ m}$

$Perimeter ~ = 2 ( AB + BC )$

$Perimeter ~ = 2 ( 4 + 6.8 )$

$Perimeter ~ = 2 ( 10.8 )$

$\large {\boxed {Perimeter ~ = 21.6 ~ m} }$

Learn more

The perimeter of a polygon : brainly.com/question/6361596
The perimeter of a rectangle : brainly.com/question/7619923
The perimeter of a triangle : brainly.com/question/2299951

Answer details

Grade: College

Subject: Mathematics

Chapter: Two Dimensional Figures

Keywords: Perimeter, Area , Square , Rectangle , Side , Length , Width

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