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garik1379 [7]
3 years ago
8

Consider the following sets. U = {all triangles} E = {x|x ∈ U and x is equilateral} I = {x|x ∈ U and x is isosceles} S = {x|x ∈

U and x is scalene} A = {x|x ∈ U and x is acute} O = {x|x ∈ U and x is obtuse} R = {x|x ∈ U and x is right} Which is a subset of I? E S A R
Mathematics
1 answer:
Semmy [17]3 years ago
8 0

Answer: E

Step-by-step explanation:

took a test :)

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If the circumference of the circle is 72 what is the minor arc of a 60 degree angle
telo118 [61]
The circumference involves 360 degrees.
60 degrees is one sixth of the circle (60/360)
So, one sixth of 72 is 12.


6 0
4 years ago
Use the following ordered pairs
Lynna [10]

The ordered pair for Y is (-4,-2)

Step-by-step explanation:

Given

X(-2,3)

Z(-6,-7)

As Y is the mid-point of XZ, it will divide Xz in two equal segments. Y is the mid-point of the segment.

Let (x_Y, y_Y) be the coordinates of the mid-point

Then

(x_Y, y_Y) = (\frac{x_1+_2}{2} , \frac{y_1+y_2}{2})

Putting the values

=(frac{-2-6}{2} , \frac{3-7}{2})\\=(\frac{-8}{2} , \frac{-4}{2})\\=(-4, -2)

Hence,

The ordered pair for Y is (-4,-2)

Keywords: Coordinate geometry, Mid-point

Learn more about coordinate geometry at:

  • brainly.com/question/2116906
  • brainly.com/question/2131336

#LearnwithBrainly

3 0
4 years ago
Matt picks a marble from a bag, replaces it and then chooses a second
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Answer:

Step-by-step explanation:

6 0
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Type into a calculator 2000*(3/8)

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Read 2 more answers
The ratio of the lengths of a triangle are 4:6:9 and its perimeter is 57cm. Find the length of the shortest side.
sergeinik [125]

Answer:12cm

Step-by-step explanation:

The ratio are:

4:6:9

Perimeter=57cm

Let a be the unknown value.

The triangle has three sides: 4a, 6a, 9a

Perimeter=The sum of three sides

57=4a + 6a +9a

57=19a

Divide both side by 19

a=57/19

a=3

Therefore

4a:6a:9a

4×3:6×3:9×3

12:18:27

So the shortest side is 12cm

5 0
3 years ago
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