Tan (x) = 0.8. To calculate the angle x, find the tan⁻¹ (0.8) = 38.7°
23 x 10,000 = 230,000
Another name for 23 ten thousand is: Two hundred thirty thousand
And another name also is: 230 Thousands
|a| = -a if a < 0
The absolute value and the opposite of rational number is equal when a number is negative.
Examples:
|-7| = - (-7) = 7
|-0.5| = - (-0.5) = 0.5
The converse of a conditional statement switches the hypothesis and conclusion.