Question Detail

Evaluate
\begin{aligned}
\sqrt{0.00059049}
\end{aligned}

0.00243
0.0243
0.243
2.43

Answer: Option B

Explanation:

Very obvious tip here is, after squre root the terms after decimal will be half (that is just a trick), works awesome at many questions like this.

1. Evaluate
\begin{aligned}
\sqrt{248+\sqrt{64}}
\end{aligned}

Answer: Option C

Explanation:

\begin{aligned}
= \sqrt{248+\sqrt{64}}
\end{aligned}

\begin{aligned}
= \sqrt{248+8}
\end{aligned}

\begin{aligned}
= \sqrt{256}
\end{aligned}

\begin{aligned}
= 16
\end{aligned}

2. Evaluate
\begin{aligned}
\sqrt{53824}
\end{aligned}

Answer: Option B

3. Evaluate \begin{aligned}
\sqrt{1471369}
\end{aligned}

1213
1223
1233
1243

Answer: Option A

4. if a = 0.1039, then the value of
\begin{aligned} \sqrt{4a^2 - 4a + 1} + 3a \end{aligned}

12.039
1.2039
11.039
1.1039

Answer: Option D

Explanation:

Tip: Please check the question carefully before answering. As 3a is not under the root we can convert it into a formula , lets evaluate now :

\begin{aligned}
= \sqrt{4a^2 - 4a + 1} + 3a \end{aligned}

\begin{aligned}
= \sqrt{(1)^2 + (2a)^2 - 2x1x2a} + 3a \end{aligned}

\begin{aligned}
= \sqrt{(1-2a)^2} + 3a \end{aligned}

\begin{aligned}
= (1-2a) + 3a \end{aligned}

\begin{aligned}
= (1-2a) + 3a \end{aligned}

\begin{aligned}
= 1 + a = 1 + 0.1039 = 1.1039 \end{aligned}

5. Evaluate
\begin{aligned}
\sqrt{6084}
\end{aligned}

Answer: Option C

Question Detail

Evaluate \begin{aligned} \sqrt{0.00059049} \end{aligned}

1. Evaluate \begin{aligned} \sqrt{248+\sqrt{64}} \end{aligned}

2. Evaluate \begin{aligned} \sqrt{53824} \end{aligned}

3. Evaluate \begin{aligned} \sqrt{1471369} \end{aligned}

4. if a = 0.1039, then the value of \begin{aligned} \sqrt{4a^2 - 4a + 1} + 3a \end{aligned}

5. Evaluate \begin{aligned} \sqrt{6084} \end{aligned}

Evaluate
\begin{aligned}
\sqrt{0.00059049}
\end{aligned}

1. Evaluate
\begin{aligned}
\sqrt{248+\sqrt{64}}
\end{aligned}

2. Evaluate
\begin{aligned}
\sqrt{53824}
\end{aligned}

3. Evaluate \begin{aligned}
\sqrt{1471369}
\end{aligned}

4. if a = 0.1039, then the value of
\begin{aligned} \sqrt{4a^2 - 4a + 1} + 3a \end{aligned}

5. Evaluate
\begin{aligned}
\sqrt{6084}
\end{aligned}