Actually, there is no such thing. You may be thinking of PEMDAS, which is the abbreviation for the order of operations in math.
P stands for Parentheses
E stands for Exponents
M stands for multiplication and D stands for dividing. If there are both of these operations in the problem, do them from left to right.
A stands for Addition, and S stands for Subtraction. Same rules for multiplying and dividing.
Starting with P, you would go down the list of letters when solving a multi operation problem. <3 I hope I helped!!
Answer:
Step-by-step explanation:
An arithmetic sequence that is described by the explicit formula ...
can also be described by the recursive formula ...
Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...
B.13.1 that’s the answer
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Answer:
158
Step-by-step explanation:
2(x square + y square)
2 (X+y) square -2 xy
2(10) square -2(21)
2×100-42
200-42
=158
