Answer: Hopefully the math terms won't confuse anyone.
So in the series, a_3 = -1 and a_7 = -13. Since it's an arithmetic sequence, all the terms in the series can be represented as:
a_n = a_0 + n * k
where n is the nth number. K is a constant you add to reach the next term, and a_0 is the starting constant.
a_7 = a_0 + 7 * k
a_3 = a_0 + 3 * k
solving this system gives you that
k = - 3 and a_0 = 8
Hence:
a_22 = 8 + 22 * -3 = -58
Step-by-step explanation:
We have to check if LHS = RHS
First solve LHS
Answer:
-4x^3+ 7x^2 + 5x-8
Step-by-step explanation:
Answer:
x = 1, y = -3
Step-by-step explanation:
see graph above ^
Trip G at 1000 miles earning 5 points a mile plus an extra 20 for every 500
