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3 years ago

6

The square on the right is a scaled copy of the square on the left. Identify the scale factor. Express your answer as a whole nu

mber or fraction in simplest form.
Need the answer asap

1 answer:

MaRussiya [10]3 years ago

8 0

Answer:

549.25 sorry if wrong

Step-by-step explanation:

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Explain how to derive the surface area formula of a cylinder: 2πr^2 + 2πrh

Arte-miy333 [17]

The surface area of a cylinder can be found by breaking it down into three parts:

The two circles that make up the ends of the cylinder.
The side of the cylinder, which when "unrolled" is a rectangle
In the figure above, drag the orange dot to the left as far as it will go. You can see that the cylinder is made up of two circular disks and a rectangle that is like the label unrolled off a soup can.

The area of each end disk can be found from the radius r of the circle.
The area of a circle is πr2, so the combined area of the two disks is twice that, or2πr2.
(See Area of a circle).
The area of the rectangle is the width times height.
The width is the height h of the cylinder, and the length is the distance around the end circles. This is the circumference of the circle and is 2πr. Thus the rectangle's area is 2πr × h.
Combining these parts we get the final formula:
area = 2 π r 2 + 2 π r h
where:
π is Pi, approximately 3.142
r is the radius of the cylinder
h height of the cylinder

By factoring 2πr from each term we can simplify this to
area = 2 π r ( r + h )

Hope that helped. Make sure to hit the thanks if it did.. or reply with any help.

4 0

4 years ago

Read 2 more answers

Complete the synthetic division problem below. -2 | 2 2 -2 4

erik [133]

Answer:

C. 2x² - 2x + 2

General Formulas and Concepts:

<u>Algebra II</u>

Long Division and Synthetic Division

Step-by-step explanation:

<u>Step 1: Define</u>

Function f(x) = 2x³ + 2x² - 2x + 4

Divisor Root (x + 2)

<u>Step 2: Synthetic Division</u>

<em>See Attachment.</em>

If the Remainder equals 0, then the Divisor Root is indeed an actual root of the function polynomial. If the Remainder does not equal 0, the Divisor Root is not an actual root of the function polynomial.

<em>Please excuse the bad handwriting. Hope this helped!</em>

6 0

3 years ago

Solve for xxx in the diagram below.

Ne4ueva [31]

Yeah answer is A I think

8 0

3 years ago

2(m + 9) = 24 find m

yan [13]

2m+18=24

or,m=6/2

therefore,m=3

6 0

4 years ago

Point C is on line segment \overline{BD} BD . Given CD=x,CD=x, BC=5x-5,BC=5x−5, and BD=2x+7,BD=2x+7, determine the numerical len

NARA [144]

Answer:

$CD = 3$

Step-by-step explanation:

Given

$CD = x$

$BC = 5x - 5$

$BD = 2x + 7$

Required

Determine CD

Since, C is a point on BD, the relationship between the given parameters is;

$BD = BC + CD$

Substitute the values of BD, BC and CD

$2x + 7 = 5x - 5 + x$

Collect Like Terms

$2x - 5x - x = -5 - 7$

$-4x = -12$

Divide both sides by -4

$\frac{-4x}{-4} = \frac{-12}{-4}$

$x = 3$

To determine the length of CD;

Substitute 3 for x in $CD = x$

Hence;

$CD = 3$

3 0

3 years ago