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blagie [28]
3 years ago
15

Estimate the square root to the nearest (a) whole number and (b) tenth. Make sure you list 2 answers for these problems.

Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

<em>C</em><em>r</em><em>e</em><em>d</em><em>i</em><em>t</em><em>s</em><em> </em><em>T</em><em>o</em><em> </em><em>T</em><em>h</em><em>e</em><em> </em><em>R</em><em>i</em><em>g</em><em>h</em><em>t</em><em> </em><em>O</em><em>w</em><em>n</em><em>e</em><em>r</em>

Aleksandr-060686 [28]3 years ago
7 0

Answer:

  • -15i
  • -14.8i

Step-by-step explanation:

<h3>(a)</h3>

The nearest squares to 220 are 14² = 196 and 15² = 225. Since 220 is closer to 225 than to 196, the nearest whole number to the square root of 220 is 15.

The square root of -220 is imaginary, so the nearest whole number value will be 15i.

__

<h3>(b)</h3>

The decimal fraction part of the root can be estimated from the nearest squares to be ...

  (220 -196)/(225 -196) ≈ 0.828

Then the root of 220 to the nearest tenth is 14.8. The root of -220 to the nearest tenth will be the imaginary number 14.8i.

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