Thursday 00:0910 00:0780 Two boys timed their race from the classroom door to the end of the building.

1. The school record is 6:90. Tom is still _ seconds behind the record.

2. The time difference between Matt and Tom is _ seconds.

1 answer is  8

2 answer is 2

Step-by-step explanation:

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for