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Chapter 1: Q62. (page 10)

Evaluate each expression

169

Short Answer

Expert verified

Expression 169 results into 13

Step by step solution

01

- Meaning of a

The symbol is used to denote square root of a number.

Thus a denotes square root of 'a'

02

- Find a whole number whose square is 169

Since, 132=169

So, a whole number whose square is 169 is 13

03

- Simplify 169

Since, square of 13 is 169

So, square root of 169 is 13, 169=13

Thus, value of 169 is 13

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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.

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4.83+6

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23.4+64÷8×4÷2

FIREWORKS

Suppose you are about a mile from a firework display. You count 5 seconds between seeing the light and hearing the sound of the firework display. You estimate the viewing angle is about 4°. Using the information at the left, estimate the width of the firework display.

Information at the left

To estimate the widthw in feet of a firework burst, use the formula w=20At. In this formula,A is the estimated viewing angle of the firework display andt is the time in seconds from the instant you see the light until you hear the sound.

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

2z-15x3y
See all solutions

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