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castortr0y [4]
4 years ago
12

What is 3x - 7 = 8x +23

Mathematics
1 answer:
dexar [7]4 years ago
7 0
3x-7 = 8x +23
-3x. -3x
-7= 5x+23
-30=5x
X= -6
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Consider that ΔXYZ is reflected across the y-axis and translated 2 units down.
DanielleElmas [232]

Answer:

X'Y' ≅ XY

∠Z ≅ ∠Z'

Step-by-step explanation:

we know that

A transformation that does not alter the size or shape of a figure is called a <u><em>Rigid Transformation</em></u>

Translations, rotations and reflections are rigid transformations

<u><em>Verify each statement</em></u>

case 1) X'Y' ≅ XY

The statement is true

Because

Reflecting and translating the triangle not change its shape or its size

The corresponding sides of the image and the pre-image are congruent

case 2) ∠Z ≅ ∠Z'

Because

Reflecting and translating the triangle not change its shape or its size

The corresponding angles of the image and the pre-image are congruent

case 3) ΔXYZ is not congruent to ΔX'Y'Z'

The statement is false

Because

ΔXYZ is congruent to ΔX'Y'Z'

case 4) Reflecting and translating the triangle change its shape and size

The statement is false

Because

Reflecting and translating the triangle not change its shape or its size

7 0
3 years ago
Indify 5(2x-3)=8x+3<br><br><br> .........
vivado [14]

Answer:

solution,

5(2x-3) = 8x +3

or, 10x -15 = 8x+3

or, 10x -8 x= 3+15

or, 2x = 18

or, x = 18/2

or, x = 9

.:. x = 9

6 0
3 years ago
427 thousand in a scientific notation
ira [324]

Answer:

4.27 x 10^{5}

Step-by-step explanation:

The whole digit cannot go past 10 or be less than 1:

1 - 10 is the numbers of its max.

427,000

We would move the decimal point between 4 and 2 making:

4.2700

(Originally the decimal point moved 5 places because 427,000 is a whole number, which means the decimal point would be considered at the end, as shown below)

427,000<u><em>.</em></u>

By moving 5 places to the left this will be part of your: scientific notation as

___ x 10^{5}

(Then plug in 4.27 in front of your notation)

4.27 x 10^{5}

That is your answer!

5 0
4 years ago
Please help me please
inn [45]

Answer:

36\sqrt{3} square units.

Step-by-step explanation:

The triangle shown is an equilateral triangle. This means all the side lengths are 12. The formula for the area of an equilateral triangle is a^{2}(\frac{\sqrt{3} }{4}).

Plug in 12 for a.

144\sqrt{3}/4

= 36\sqrt{3}

6 0
3 years ago
Read 2 more answers
Answer to question 5
kogti [31]
Three plus parenthesis four times twelve
7 0
3 years ago
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