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Chapter 1: Q19. (page 9)

Find the value of each expression

6+72-1

Short Answer

Expert verified

Value of6+72-1 is 25

Step by step solution

01

- Order for simplification 

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

- Simplify expression inside grouping symbol

To evaluate the value of the given expression, first simplify the expression inside the parenthesis and then multiply it with 2 as shown below

6+72−1=132−1=26−1

03

- Subtract 1 from 26

Now, to simplify further subtract the numbers to get

26−1=25

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Most popular questions from this chapter

Answer the question that was posed at the beginning of the lesson.

How are formulas used by nurses?

Include the following in your answer:

  • an explanation of why a formula for the flow rate of an IV is more useful than a table of specific IV flow rates, and
  • a description of the impact of using a formula, such as the one for IV flow rate, incorrectly.

Simplify each expression

1216-4a-3412+20a

Find the value of each expression

262-9

Evaluate each expression if w=6,x=0.4,y=12,and z=-3

w-3x+y

Evaluate each expression

59.9
See all solutions

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