Question

3. A decimal fraction when multiplied with itself results in 1.1449. Find the decimal fraction.
9. What least number must be subtracted from 6,275 to get a perfect square?​

Answer 1

Answer:

Step-by-step explanation:

A number multiplied by itself is a square. By square rooting the answer, we can find the original number

$x^{2} =1.1449\\x = \sqrt{1.449}$

x = 1.203....

perfect square:

$\sqrt{6275}$ = $5\sqrt{251}$

So that number is not a perfect square. If we change the answer into a decimal, we get 79.2148...

Round down to 79

79^2 = 6241

6275-6241 = 34