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SAT Math 1.4 Numbers and Operations. Solve the equation.
SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?
SAT Math 2.1 Numbers and Operations 218 Views
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Description:
SAT Math 2.1 Numbers and Operations. How many dots will be in the 6 th term of this sequence?
Transcript
- 00:03
Hope you left room for an extra helping of Shmoop.
- 00:06
How many dots will be in the 6th term of this sequence?
- 00:10
And here are the potential answers:
- 00:14
Oh look! We're building bigger and bigger triangles!
- 00:17
Looks like there's a pattern here...
Full Transcript
- 00:24
So from the first dot to the second picture...we have columns of 1 dot and 3 dots...
- 00:30
…from the second to the third...we get columns of 1, 3, and 5 dots...
- 00:33
So it looks like we're increasing the number of dots in each column by 2 as we go from term to term.
- 00:39
So the fourth term will have columns of 1, 3, 5, 7…for 16 dots total…
- 00:45
The fifth term will have columns of 1, 3, 5, 7, 9… or 25 dots total…
- 00:51
…and the sixth term will have columns of 1, 3, 5, 7, 9, 11…or 36 dots total.
- 00:57
Answer's E.
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