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egoroff_w [7]
1 year ago
9

Squaring both sides of an equation is irreversible. Is Cubing both sides of an equation reversible? Provide numerical examples t

o help support your answer.
Mathematics
1 answer:
nikitadnepr [17]1 year ago
4 0

Answer:

<h2>Cubing both sides of an equation is reversible.</h2>

Step-by-step explanation:

Squaring both sides of an equation is irreversible, because the square power of negative number gives a positive result, but you can't have a negative base with a positive number, given that the square root of a negative number doesn't exist for real numbers.

In case of cubic powers, this action is reversible, because the cubic root of a negative number is also a negative number. For example

\sqrt[3]{x} =-1

We cube both sides

(\sqrt[3]{x} )^{3} =(-1)^{3} \\x=-1

If we want to reverse the equation to the beginning, we can do it, using a cubic root on each side

\sqrt[3]{x}=\sqrt[3]{-1} \\\sqrt[3]{x}=-1

There you have it, cubing both sides of an equation is reversible.

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Orthographic projection and isometric projection are two ways to show three-dimensional objects in a two-dimensional space, such
DerKrebs [107]

Answer:

Orthographic Projection is used for making the projects but Isometric Projection is used to have better understanding of the object.

Orthographic drawings are typically two dimensional views of an object. For instance, if you were designing a table, you would draw a top view, side view and a bottom view. Should these three views not fully explain the design of the table other views would need to be drawn. When drawing an perspective view in an orthographic manner, you would utilize a 45 degree triangle for the lines that extend back or forward from the vertical lines. This type of perspective is not a true perspective because you can measure the true length of all the details shown. An isometric drawing is meant to depict a 3D image of an object in what appears to be a perspective view. However, similar to an orthographic perspective, all of the lines in an isometric drawing can be measured to their true length. What makes it different from an orthographic perspective is that its angled lines are drawn at 30 or 60 degrees or divisions of them. Drawing this by hand you would use a 30/60/90 triangle.

In either case, both types of perspectives can be accurately measured with a ruler in order to know the objects measurements.

Step-by-step explanation:

5 0
1 year ago
Triangle ABC is translated according to the rule (x, y) → (x + 2, y – 8). If the coordinates of the pre-image of point B are (4,
Fed [463]
*Hint: In order to find the coordinates, you plug in the coordinates into the rule and solve.

(x, y) → (x + 2, y - 8)
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The coordinates of B' is (6, -13).
8 0
2 years ago
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The line with the equation 4/5x +1/3y=1 is graphed one the xy-plane. What is the x-coordinate of the x-intercept of the line?
leva [86]

Answer:

x = 4/5

Step-by-step explanation:

The x-intercept looks like (x, 0); the coordinate 0 indicates that the point lies on the x-axis.  If we start with 4/5x + 1/3 y= 1 and let y = 0, we will get an equation for the x-intercept:

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Then 4/5x = 1, and (5/4)(4/5)x = (1)(4/5).

Thus, x = 4/5, and the x-intercept is (4/5, 0).

4 0
2 years ago
If 3x-1=11, then 2x=?
choli [55]
<span>If 3x-1=11, then 2x=?
</span><span>
 2x + x - 1 = 11
 2x = -x +12</span>
7 0
2 years ago
in mathematics competition,the winner won $100 more than twice the amount won by the runner-up. how much money did the runner-up
11111nata11111 [884]

Answer:

1,175

I only halfed it.

Hope it's right.

3 0
2 years ago
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