Question

Find $x$ correct to one decimal place.

   Find $x$ correct to one decimal place.

Algebra and Trigonometry

Algebra and Trigonometry

James Stewart,… 2nd Edition

Chapter 6, Problem 40

Instant Answer

Solved by Expert Arulmozhi T

09/03/2020

Step 1

Let BC = y. We know that $\tan 60^{\circ} = \frac{opposite side}{adjacent side}$. So, we can write $\tan 60^{\circ} = \frac{85}{y}$. Show more…

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Find $x$ correct to one decimal place.

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Key Concepts

Rounding

Rounding is the process of modifying a number to a given level of precision. This involves looking at the digit immediately after the desired place value and determining whether to increase the last retained digit or leave it unchanged according to standard rules.

Decimal Approximation

Decimal approximation involves expressing a number in terms of its decimal representation up to a specified number of digits after the decimal point. When rounding to one decimal place, the number is simplified to retain exactly one digit beyond the decimal point, making it easier to work with in computations and comparisons.

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