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4 years ago

What is the reason for each proof?

Mathematics

1 answer:

Arisa [49]4 years ago

6 0

Answer:

Step-by-step explanation:

We have given the expression:

3x - 4 = 2(x + 8)

Now multiply the R.H.S

3x-4 = 2x+16 (Distributive property)

Add 4 to both sides:

3x-4+4=2x+16+4

3x = 2x+20 (Addition property of equality)

Subtract 2x from both sides:

3x-2x = 2x-2x+20

x=20 (Subtraction property of equality)....

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Type the correct answer in the box. Use numerals instead of words if necessary use the /

Lorico [155]

Answer:

The length of the TV is 45 inches and the height is 28 inches.

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4 years ago

WHAT IS THE SOLUTION TO THIS EQUATION 1. 8x - 5(x- 3)= 18

marysya [2.9K]

Answer:

x = 1

Step-by-step explanation:

8x - 5(x - 3) = 18

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3 years ago

Read 2 more answers

What is the square root of 58?

Westkost [7]

Answer:

7.6

Step-by-step explanation:

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3 years ago

−3(2+4k)+7(2k−1) eqivalent expression

Alex17521 [72]

Answer:

$\large\boxed{-3(2+4k)+7(2k-1)=2k-13}$

Step-by-step explanation:

$-3(2+4k)+7(2k-1)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-3)(2)+(-3)(4k)+(7)(2k)+(7)(-1)\\\\=-6-12k+14k-7\qquad\text{combine like terms}\\\\=(-12k+14k)+(-6-7)\\\\=2k-13$

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3 years ago

The vertices of a right triangle are (0, 0), (1, 0), and (0, 1).

Alchen [17]

Answer:

(3,3)

Step-by-step explanation:

Given

$Vertices: (0,0)\ (1,0)\ (0,1)$

$Scale\ Factor = 3$

Required

Determine which can't be any of the new vertices

First, we need to determine the new vertices:

$New\ Vertex = Scale\ Factor * Old\ Vertex$

For (0,0):

$New\ Vertex = 3 * (0,0)$

$New\ Vertex = (3 * 0,3 * 0)$

$New\ Vertex = (0,0)$

For (1,0):

$New\ Vertex = 3 * (1,0)$

$New\ Vertex = (3 * 1,3 * 0)$

$New\ Vertex = (3,0)$

For (0,1):

$New\ Vertex = 3 * (0,1)$

$New\ Vertex = (3 * 0,3 * 1)$

$New\ Vertex = (0,3)$

Comparing the calculated new vertices to the list of given options; (3,3) can't be any of the new vertices of the new triangle

5 0

4 years ago