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BigorU [14]
3 years ago
14

What is the scale factor used when going from a larger rectangle to the smaller one?

Mathematics
1 answer:
romanna [79]3 years ago
7 0
The scale factor would be the ratio between the similar sides. Look at the picture below. These are two similar rectangles. Side AB corresponds to side EF. So the scale factor would be the length of the new rectangle divided by the length of the corresponding side for the original rectangle.

4/8 = 1/2

So the scale factor is 1/2. Note: If you're going from a bigger shape to a smaller one, you know that the scale factor must be less than 1. Similarly, if you're going from a smaller shape to a bigger shape, you know that the scale factor must be greater than 1.

And you have to divide the corresponding sides. If you knew side BD, you couldn't divide it from 4, because BD and EF aren't corresponding sides.

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The robots will be taking over ⅓ of the normal work. you have hired 4 robots. How much of the total work will they be doing?
Maru [420]

Answer:

they all as a group will be doing 1/3 of the work.  There are 4 robots.

how much will each individual robot be doing from the total work?

well, how many times does 4 go into 1/3?

Step-by-step explanation:

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Follow the process of completing the square to solve 2x2 + 8x - 12 = 0. After adding B2 to both sides of the equation in step 4,
valentina_108 [34]
 2x2 + 8x - 12 = 0
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4 0
3 years ago
What is the simplest form of this expression?<br> -(х – 2)(3х2 + 4х-5)
skad [1K]

Answer:

C

Step-by-step explanation:

3x^2 * -x =-3x^3

3x^2 * 2. =6x^2

4x* -x =-4x^2

4x * 2 = 8x

-5 * -x = 5x

-5 * 2 = -10

6x^2 + -4x^2 = 2x^2

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Ans: -3x^3 + 2x^2 + 13x -10

7 0
4 years ago
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How many 5-member chess teams can be chosen from 15 interested players? Consider only the members selected, not their board posi
ryzh [129]

<u>Answer</u>:

3003 number of 5-member chess teams can be chosen from 15 interested players.

<u>Step-by-step explanation:</u>

Given:

Number of the interested players =  15

To Find:

Number of 5-member chess teams that can be chosen = ?

Solution:

Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter. To calculate combinations, we will use the formulanCr = \frac{n!}{r!(n - r)!}

where

n represents the total number of items,

r represents the number of items being chosen at a time.

Now  we have n = 15 and r = 5

Substituting the values,

15C_5 = \frac{15!}{5!(15- 5)!}

15C_5 = \frac{15!}{5!(10)!}

15C_5 = \frac{15!}{5!(10)!}

15C_5 = \frac{15\times \times 14 \times 13 \times 12 \times 11 \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 }{5 \times 4 \times 3 \times 2 \times 1(10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1)}

15C_5 = \frac{15\times \times 14 \times 13 \times 12 \times 11}{(5 \times 4 \times 3 \times 2 \times 1)}

15C_5 = \frac{360360}{120}

15C_5 = 3003

7 0
3 years ago
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