Find the pattern in these numbers. Seems easy, just don't see a pattern that'll fit. PLEASE?

Question

0, 1, 3, 7, x, 31

What is x?

THANK YOU!

By the way, what is a compound statement, my teacher talks about it all the time and I don't understand. Thanks again guys. Hope you're having a good night, have a great night's sleep!

For example, which one of these are compound statements?

1 The sides and angles in an equilateral triangle are equal.
2 The sides of a square are equal and the opposite sides of a square are parallel.
3 The opposite sides of a rectangle are equal and parallel.
4 The center of a circle is at the same distance from all points on its circumference.

Answer 1

x = 15 (2^4 - 1)
The pattern is 2^n - 1 where n starts from 0.

Added after viewing Additional details:
Compound statements normally refer to two or more things which are related into a statement.
Answer 1(sides and angle) and 2(sides, opposite side) will be compound statements. Answer 3 only refers to characteristics of opposite sides. Answer 4 only refers to distance from center to points on circumference.

Answer 2

15

Answer 3

15

2^0 - 1 = 1 - 1 = 0
2^1 - 1 = 2 - 1 = 1
2^2 - 1 = 4 - 1 = 3
2^3 - 1 = 8 - 1 = 7

So the next one is:

2^4 - 1 = 16 - 1 = 15

Just to verify:

2^5 - 1 = 32 - 1 = 31

Answer 4

x= 15

0,1 = 0+1 = 1
1,3 = (1+1) +1 =3
3,7 = (2+2) +3 = 7
7,x = (4+4) +7 = 15
15,31 = (8+8) +15 = 31

see how the numbers in the brackets double each time

Answer 5

0, 1, 3, 7, 15, 31....

x is 15 since the difference between two numbers is getting doubled.

Answer 6

Okay..

Its

the number...times 2..plus 1

so itd be

0, 1,3,7,15,31,62

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