The explicit rule for any arithmetic sequence is:
a(n)=a+d(n-1), a=initial term, d=common difference, n=term number
In this case a=-3 and d=7 so:
a(n)=-3+7(n-1)
a(n)=-3+7n-7
a(n)=7n-10
20*15=300
It's "too short", but there's not much else to say here.
The numbers 0, 1, 2, 3, 4 could all be the missing digit because they're all numbers that round down. hope this helped!
Answer:
6
Step-by-step explanation:
Hello,
The two triangles are <u>similar</u> and x is <u>positive</u>, <u>different from 0</u>, so we can write.
Thanks
