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aniked [119]
4 years ago
10

What is the value of x in trapezoid ABCD

Mathematics
2 answers:
Serjik [45]4 years ago
7 0

Answer:

x = 15

Step-by-step explanation:

9x + 3x = 180

12x = 180

x = 15

statuscvo [17]4 years ago
5 0
So the trapezoid has 2 parallel sides making segments AD and BC  transversals

Therefore making angle c and angle b add up to 180

(180-3x) + 3x + 180-9x +9x

180 +12x = 360

180= 12x
x= 15

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3 0
3 years ago
seven people arrive to dinner, but the circular table only seats six. if two seatings such that one is a rotation of the other a
Alenkinab [10]

6 different people chosen from 7 can sit around the circular table in 840 ways.

Given that there are 7 people who have arrived for dinner.

But the circular table only seats 6.

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This can be done in 7 ways, which is a simple case of permutation.

A permutation is a combination of objects arranged in a particular sequence. The elements of sets are arranged in this case in a linear or sequential sequence.

Now 6 people will have to sit on the circular table.

Now from the properties of combination we know that , if n people sit around a circular table, then they can sit in n! ways.

Therefore 6 people can sit around a circular table in 6! ways.

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5 0
1 year ago
What is the missing length 11 + = ×16 = ÷2 =209
zzz [600]
11 plus what number equals 16 in order to complete your problem.
3 0
3 years ago
Based on the following system of equations, determine the number of solutions.
larisa [96]

2 solutions x,y= 2,7

5 0
3 years ago
Bob's Skate Shop had a profit of $3,563 during the month of August. The company models its profit using p=x^2+10x-12 where x is
Elis [28]
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you could also try this equation. B=the number attached to x so 10, a=the number attached to x^2(or in other equation x^3 etc) so 1 and c is the number, so -12.

3 0
4 years ago
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