Carcass wrote:
Quantity A |
Quantity B |
\(0.4\) |
\(\sqrt{0.4}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
CHALLENGE: Build your number sense skills by solving this one without using a calculator. Let's examine some other roots:
√0.64 = 0.8 (since 0.8² = 0.64)
√0.49 = 0.7 (since 0.7² = 0.49)
√0.36 = 0.6 (since 0.6² = 0.36)
Since 0.4 is BETWEEN 0.36 and 0.49, we know that √0.4 is BETWEEN √0.36 and √0.49
In other words, √0.4 is BETWEEN 0.6 and 0.7
We get:
QUANTITY A: 0.4
QUANTITY B: some number between 0.6 and 0.7
Answer: B
Cheers,
Brent