Answer:
73
Step-by-step explanation:
-9+84+(-2) =
-9+82 =
= 73
Hope this helps
IT supposed to be 2 because 1/2 1/3 of 1/5 of 60 is "2".
<span><span> x-4/x3-64</span> </span>Final result :<span> x4 - 64x3 - 4
—————————————
x3 </span>
That number is already in standard form.
If you need to write it in scientific notation, then do this.
<span>731,934,000
Look at all the digits that are not zero, and place the decimal point in a way that you have a number from 1 to less than 10.
Take 731934, and place the decimal point after the 7 giving 7.31934.
The original decimal point was after the third zero, so now using the original number, count the number of decimal places you moved the decimal point. The decimal point moved 8 places to the left. That means you need an exponent of 8.

</span>
Since the areas are the same (5 x 6 = 30 units), and the height of the triangle (DC) is 5 so the length of the triangle must be 12. (1/2 of 5 x 12 is also 30)
So now we use the Pythagorean theorem
a² + b² = c² we have 5² + 12² = c² or 25 + 144 = c² or 169 = c²
The square root of 169 is 13 so side DE is 13 units.