3 years ago

Which triangle, if any, has side lengths of 15, 15, and 15?

2 answers:

4 0

equilateral triangle is a triangle in which all three sides are equal. In traditional or Euclidean geometry equilateral triangle

Delvig [45]3 years ago

3 0

Here, All the sides are equal so it would be "Equilateral Triangle"

In short, Your Answer would be Option A

Hope this helps!

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Question 3

Thepotemich [5.8K]

Answer:

√(36+9) = √45 = 6.7 this is the answer, just estime it

8 0

2 years ago

2y = x + 3 5y = x - 7 What is the solution set of the given system?

prohojiy [21]

2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7

so
2y - 3 = 5y + 7
2y - 5y = 7 + 3
-3y = 10
y = -10/3
y = -3 1/3

2y = x + 3
2 (-10/3) = x + 3
-20/3 - 3 =x
-29/3 = x
-9 2/3 =x
or
x = -9 2/3

solutions: x = -9 2/3 and y = -3 1/3

5 0

3 years ago

Read 2 more answers

Consider the universal set U and the sets X, Y, Z. U={1,2,3,4,5,6} X={1,4,5} Y={1,2} Z={2,3,5} What is (Z⋃X′)⋂Y?

beks73 [17]

X' = U - X

= {1,2,3,4,5,6} - {1,4,5}

= {2,3,6}

(ZUX') = {2,3,5} U {2,3,6}

= {2,3,5,6}

(Z⋃X′)⋂Y = {2,3,5,6} ⋂ {1,2}

= {2}

3 0

3 years ago

3x − 2y = 18 y = 2x − 13

jenyasd209 [6]

Answer:

x = - 8

3x - 2y = 18 is the same as 3x - (2x - 13 times 2) = 18

Then I used an algebra site for the rest.

It should be x = - 8

3 0

2 years ago

Read 2 more answers

Which equation describes the sum of the vectors plotted below?

Alex787 [66]

Answer: $A) \ 3\vec{x} -2\vec{y}$

Step-by-step explanation:

The resultant can be calculated using triangular law of vector addition as :

$\rm \vec{r}=\vec{AB} +\vec{AC}=2x+y+x-3y=\boxed{3x-2y }$

8 0

3 years ago