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mina [271]
3 years ago
6

What property is occurring in the following example? 11.5 + (- 11.5) = 0

Mathematics
1 answer:
kramer3 years ago
5 0

Answer: A property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.

Step-by-step explanation:

A property where sum of any number and its inverse is equal to zero is called additive inverse property.

For example, 11.5 + (-11.5) = 0

Here, 11.5 is the number and its inverse is (-11.5). The sum of both these is equal to zero. Hence, it shows a property of additive inverse.

Thus, we can conclude that property occurring in the example 11.5 + (-11.5) = 0, is additive inverse.

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A washer and a dryer cost 634 dollars combined. The washer cost 66 dollars less than the dryer. What is the cost of the dryer?
Nutka1998 [239]

Steps to Solve:

1.  634 / 2 = 317

2. 317 + 66 = 383

Answer:

A = $383

Notes:

Read the question, this problem is not that hard to solve!

8 0
3 years ago
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Suppose you are given a parabola with two points that have the same y-value, such as (-7, 11) and (3, 11). Explain how to find t
Hoochie [10]

By using the midpoint formula and the equation of the line, the equation of the line of symmetry is x = - 2.

<h3>How to derive the equation of the axis of symmetry </h3>

In this question we know the locations of two points with the same y-value, which means that the axis of symmetry is parallel to the y-axis and that both points are equidistant. Thus, the axis of symmetry passes through the midpoint of the line segment whose ends are those points.

First, calculate the coordinates of the midpoint by the midpoint formula:

M(x, y) = 0.5 · (- 7, 11) + 0.5 · (3, 11)

M(x, y) = (- 2, 11)

Second, look for the first coordinate of the midpoint and derive the equation of the line associated with the axis of symmetry:

x = - 2

By using the midpoint formula and the equation of the line, the equation of the line of symmetry is x = - 2.

To learn more on axes of symmetry: brainly.com/question/11957987

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3 0
1 year ago
Carpet costs $15 per square yard.
4vir4ik [10]

Answer:

$2700

Step-by-step explanation:

You multiply 180 by 15 and you get 2700 dollars.

3 0
3 years ago
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X +x= telllllllllkkkll​
amid [387]

Answer: X + X= 2x or X squared.

Step-by-step explanation:

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3 years ago
What is the value of X? (20 points)
Vitek1552 [10]

Answer:

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Step-by-step explanation:

x \degree =  \frac{1}{2} (160 \degree - 51 \degree) \\  \\ x \degree =  \frac{1}{2} \times 109 \degree \\  \\ x \degree =  54.5 \\  \\ x = 54.5

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3 years ago
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