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Serhud [2]
3 years ago
9

Give an example to show that subtraction does not follow the associative rule

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

(6 - 2) - 1 = 4 - 1 = 3

6 - (2 - 1) = 6 - 1 = 5

The associative rule doesn't work for subtraction because you get different results when you move the parentheses.

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Someone please help me!!
kobusy [5.1K]
<h3>Answer:</h3>

A) Isosceles

E) Obtuse

<h3>Step-by-step explanation:</h3>

Ways to Define a Triangle

Triangles can be defined in two ways: by angles and by sides. Equilateral, isosceles, and scalene are based on side length. Acute, right, and obtuse are based on angle measurements. Triangle may only fall under one category for side length and one for angle measure (2 categories total).

Side Length

First, let's define equilateral, isosceles, and scalene.

  • Equilateral - All 3 sides of the triangle are congruent (equilateral are always acute angles).
  • Isosceles - 2 of the sides are congruent.
  • Scalene - There are no congruent sides; each side has a different length.

The triangle above has 2 congruent sides as shown by the tick marks on the left and right sides. This means the triangle is isosceles.

Angle Measurements

Now, let's define acute, right, and obtuse.

  • Acute - All 3 angles are less than 90 degrees; all angles are acute.
  • Right - 1 of the angles is exactly 90 degrees; it has a right angle.
  • Obtuse - 1 of the angles is greater than 90 degrees; there is an obtuse angle.

The largest angle in the triangle is 98 degrees, which is obtuse. This means that the triangle is obtuse.

7 0
2 years ago
What is the interquartile range of this data? 6 8 9
vladimir1956 [14]

Answer:

24

Step-by-step explanation:

Just subtract the first quartile form the third quartile.

third quartile - first quartile

32 - 8 = 24 IQR

FIRST quartile: 8

SECOND quartile: 20

THIRD quartile: 32

So the IQR is 24

Hope this helps :)

3 0
3 years ago
Read 2 more answers
Find the value of 50 5x + 15<br>​
lukranit [14]
7
5 times 7
equals 35
then you add 15
and get 50
3 0
3 years ago
What is the value of y in terms of x in the equation 3x+y/2x =152 ? Select one: A. 72x B. 3x C. 8x D. 12x
nadezda [96]

Answer:

The answer is: 12x

Step-by-step explanation:

I did the equation, and i got it right.

4 0
3 years ago
A line segment with one end at A (-3,2) has midpoint M (2,-3). Find the coordinate of the other end point B.
NARA [144]

Answer:

D

Step-by-step explanation:

since all x coordinates are distinct, lets just find the x coordinate (multiple choice question)

Midpoint formula:

given two points, (x1, y1) and (x2, y2)

the midpoint is ((x1+x2)/2, (y1+y2)/2)

-3+x2 = 2*2

x2 = 7

4 0
3 years ago
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