How do you evaluate #8+3(7-4) - (13-9)#?
13
Using the PEMDAS principle, the operations must be carried out in the following order if the expression consists of parenthesis, exponents, +, –, ×, and ÷. First, work on any calculations that are contained in parenthesis. Afterward, calculate the exponents. Next, perform multiplication or division, working from left to right. Finally, perform addition or subtraction, working from left to right.
First, we'll figure out the parenthesis.
13–9 + 8 + 3 (7–4)
8 + 3 (3) - (4)
8 + 9 -4
17 - 4 = 13
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To evaluate 8+3(7-4) - (13-9), follow the order of operations (PEMDAS/BODMAS):
- Start with the parentheses: (7-4) = 3.
- Next, multiply: 3(3) = 9.
- Now, perform addition and subtraction from left to right: 8 + 9 - (13 - 9).
- Inside the parentheses: 13 - 9 = 4.
- Perform subtraction: 8 + 9 - 4 = 13.
Therefore, the answer is 13.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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