Answer:
28
Step-by-step explanation:
2x + 7 = 4x - 7
14 = 2x
x = 7
BC = 4x = 4(7) = 28
Answer:
Both are equations, one is linear, one is not linear boom
Step-by-step explanation:
Answer:
-9
Step-by-step explanation:
find the value of i2, which is -9, find the value of i7, which is 6
Then, add them together and multiply by the number of terms in the sequence divided by 2 (6/2=3)
Answer:
12.57
Step-by-step explanation:
hope this helps