Find the area of a triangle with base of 6 m and altitude of 4 m.
12
20x3 = 60 (total amount of hours he worked)
900/60 = $15 per hour
<span>27 142 145 146 154 162
27 is definitely an outlier. You could temporarily drop it and focus on
</span>{142 145 146 154 162}. The median of this 5-numeral set is 146; it'd be a good "center." So would the mean (<span>142 +145 +146 +154 +162) /5. No one value shows up more than once, so forget about "mode."
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X² - 1 = 0
x² = 1
x = +/-√1
x = +/- 1