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mamaluj [8]
4 years ago
13

Rationalize the denominator of (click photo)

Mathematics
1 answer:
Ede4ka [16]4 years ago
6 0
\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\
\frac{\sqrt{-1*7*7}}{3-11i}=\\
\frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\
\frac{(7i)*(3+11i)}{3^2-(11i)^2}=\\
\frac{21i+77i^2}{9+121}=\\
\frac{21i-77}{130}=\\
\frac{-77+21i}{130}

so it is the last option
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13 42 m; B; 0.57 m

Step-by-step explanation:

Data:

Pool A:  r = 22 ft

Pool B: D = 13.6 m  

Calculations:

1. Radius of Pool A

r = 22 ft × (0.305 m/1 ft) = 6.71 m

2. Diameter of Pool A

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The diameter of Pool A is 13.42 m.

3. Compare pool diameters

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So, the diameter of Pool <u>B</u> is greater.

4. Compare circumferences

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C = 2πr or C = πD

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The circumference is greater by <u>0.57 m.</u>

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The number of months it would take the bunny farm to triple in size is 5.3 months.

<h3>When would the bunny farm be triple its size?</h3>

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