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Nady [450]
3 years ago
12

- 10x - 11 = -12x + 21​

Mathematics
2 answers:
bogdanovich [222]3 years ago
6 0
-10x-11=-12x+21
Move variable to the left side and change its sign
Move constant to the right side and change its sign
-10x+12x=21+11
2x=21+11
2x=32
Divide both sides by 2
X=16
Helen [10]3 years ago
4 0
-10x=-12x + 21 + 11
-10x= -12 + 32
-10x + 12x = 32
2x = 32
X = 32/2
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2. Quadrilateral ABCD was dilated with the origin as the center of dilation to create quadrilateral A'B'C'D. Which rule best rep
Virty [35]

Answer:

(x,y) => (2.5x,2.5y)

Step-by-step explanation:

Given

See attachment for ABCD and A'B'C'D'

Required

Determine the dilation rule

Using AB and A'B' as points of references;

AB = (-1,2)\ to\ (2,1)

A'B' = (-2.5,5)\ to\ (5,2.5)

The dilation factor (k) is calculated as:

k = \frac{A'B'}{AB}

This gives:

k = \frac{(-2.5,5)}{(-1,2)} \ or\ k = \frac{(5,2.5)}{(2,1)}

Factorize

k = \frac{2.5*(-1,2)}{(-1,2)} \ or\ k = \frac{2.5*(2,1)}{(2,1)}

k = 2.5 \ or\ k = 2.5

Hence, the scale factor is 2.5

The dilation rule is:

(x,y) => k(x,y)

(x,y) => 2.5(x,y)

(x,y) => (2.5x,2.5y)

3 0
3 years ago
Bers
nataly862011 [7]
50 (fifty) is the natural number following 49 and preceding 51.
5 0
3 years ago
Find the value of each variable
HACTEHA [7]
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3 years ago
Two decks of cards. One deck has 52 cards, the other has 104. You pick two cards separately from a same pack. If both of two car
Westkost [7]

Answer:

52-card desk.

Step-by-step explanation:

It is kind of depending on the number of red cards in each box.

But if there is no information for that, I would probperly choose the desk that has 52 card. Because py probability of winning will be higher when the sample size is small. Defenitedly, 52 is smaller than 104 so please pick the 52-card desk.

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What is range in math
Oxana [17]

Answer :

★<u>Range</u> : Range is the difference of the largest value and the lowest value given in graph in STATICS.

<u>More</u> <u>information</u> :

The formula to find RANGE is :

Range = Maximum value — Minimum value

What is the use of Range :

Range gives us the idea(rough) of the outcome.

<h3>Example :</h3>

Given :

(3,5,12,67,87,13)

Here we can see that the largest value is 87

And the lowest value is 3

Thus,the Range here is ,

= 87 — 3

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8 0
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