The answer is A. You have to use pathagoream theorem
Answer:
382
Step-by-step explanation:
520 - 50 = ?
520 - 50 = 470
500 is the best estimate
Answer:
Step-by-step explanation:
a4= 3 then a4-1= -1
an= a4-1 + ×
X= an - a4-1
X= 3-(-1) = 4
The recurcive formula is
An= an-1 + 4
The answer should be B
Answer:
The answer is 6
Step-by-step explanation:
3(7)-15
3 ×7=21
21-15=6
