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iren [92.7K]
3 years ago
7

Instructions: Drag each tile to the correct location on the algebraic problem. Not all tiles will be used.

Mathematics
2 answers:
jolli1 [7]3 years ago
6 0
The steps involving properties of equality are shown in painful detail.

For Step 4, you add 7 to both sides of the equation (with the goal of cancelling the -7 on the left). So you have
  6x -7 +7 = 12 +7 . . . . . . . showing 7 added to both sides

In the next step, this is simplified to the way you might have written it to start with:
  6x = 19

There should be no confusion in any of this. All solutions of all equations make use of the properties of equality like this. Addition is used to cancel subtraction, division is used to cancel multiplication. (Root-taking cancels powers, and vice-versa; inverse trig functions cancel trig functions; and so on.)

likoan [24]3 years ago
5 0
4x - 7 = -2x + 12                         //GIven

4x - 7 + 2x = -2x + 12 + 2x         //Addition property of equality

6x - 7 = 12                                //Simplification

6x - 7 + 7 = 12 + 7                    //Addition property of equality

6x = 19                                     //Simplification

6x/6 = 19/6                               //Division property of equality

x =  19/6                                  //Simplification 
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Factor the following polynomial completely.<br><br>y squared plus 5 zy plus 4 z squared<br><br>​
sweet [91]

Answer:

(y + z)(y + 4z)

Step-by-step explanation:

{y}^{2}  + 5zy + 4 {z}^{2}  \\  =  {y}^{2} + zy + 4zy + 4 {z}^{2}  \\  = y(y + z) + 4z(y  + z) \\  = (y + z)(y + 4z)

7 0
3 years ago
What is the measure of angle x°<br><br> 90°<br> 30°<br> 60°<br> 180°
forsale [732]

Answer:

it is 30°

Step-by-step explanation:

it is 30° because it is smaller that the it is 60° but bigger then the it is 90°(right angle)

4 0
2 years ago
Read 2 more answers
URGENT! PLEASE HELP.
Harrizon [31]

The distance BC from Tower 2 to the plane will be 14,065.5 ft and the height of the plane from the ground will be 5,720.9 ft.

<h3>What is a right-angle triangle?</h3>

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

A plane is located at C on the diagram.

There are two towers located at A and B.

The distance between the towers is 7600 feet and angles of elevation are given.

Then in the right-angle triangle ΔADC, we have

\rm \tan 16 = \dfrac{H}{7600 + X}\\\\\\H = 0.2867(7600 +X)\\\\\\H = 0.2756\ X + 2179.2649 ...1

Then in the right-angle triangle ΔBDC, we have

\rm \tan24 = \dfrac{H}{ X}\\\\\\H = 0.4452\ X ...2

From equations 1 and 2, we have

0.4452X = 0.2756 X + 2179.2649

0.1696X = 2179.2649

            X = 12849.439 ≅ 12,849.4 ft

Then the distance BC from Tower 2 to the plane will be

\rm BC = \dfrac{12849.4}{\cos 24}\\\\\\BC = 14065.5 \ ft

Then the height of the plane from the ground will be

\rm H = 12849.4 \times  \tan 24 \\\\\\H = 5720.9 \ ft

The figure is shown below.

More about the right-angle triangle link is given below.

brainly.com/question/3770177

#SPJ1

3 0
2 years ago
A website had 826,140 hits last mouth. What is the value of the in 826,140
iren [92.7K]
The value is 0 i think
4 0
3 years ago
Read 2 more answers
18. A glasscutter needs to cut rectangular pieces of
ololo11 [35]

For the cut glass pieces to be rectangular in shape, the glass cutter should ensure:

  1. All four interior angles = 90° each.
  2. Opposite sides are parallel and equal to each other.
  3. Diagonals should be of the same length and should bisect each other.

<h3>Properties of a Rectangle</h3>
  • All four angles of a rectangle are 90° each.
  • There are two pairs of parallel sides that are equal in length.
  • The diagonals bisect each other and are of equal length.

Thus, to ensure the cut glass pieces are rectangular in shape, he should ensure the following:

  1. Make the four interior angles 90° each.
  2. The opposite sides should be parallel and equal to each other.
  3. The diagonals should be of the same length and should bisect each other.

Learn more about properties of rectangle on:

brainly.com/question/2835318

4 0
2 years ago
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