How to square a decimal

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SAT Math › How to square a decimal

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Evaluate:

0.082

0.0064

CORRECT

0.064

0.00064

0.64

0.08 * 0.08

First square 8:

8 * 8 = 64

Then move the decimal four places to the left:

0.0064

If all real values of $x$ lie between 0 and 1, which of the following is always greater than 1?

$x+1$

CORRECT

$x^{2}$

$x^{4}$

$5x^{2}$

$\frac{x}{10}$

If $x$ is greater than 0, then adding 1 to $x$ will make it greater than 1. Taking a number between 0 and 1 to a power results in a smaller number.