Answer: ![-2\sqrt{b}](https://tex.z-dn.net/?f=-2%5Csqrt%7Bb%7D)
Step-by-step explanation:
the conjugate is:
![-2\sqrt{b}](https://tex.z-dn.net/?f=-2%5Csqrt%7Bb%7D)
The actual height of building is 1800 feet.
Step-by-step explanation:
Given,
Height of building in model = 3 inches
Scale used by engineer;
1 inch = 600 feet
Therefore;
Actual height of building = Height in model * Scale used
Actual height of building = 3 * 600
Actual height of building = 1800 feet
The actual height of building is 1800 feet.
Answer:
4. false 1 is nor prime nor composite
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