The answer is 3 because 3×5=15
20 thousands would be 200 hundreds
It’s b I’m positive because I did 1.25 to the power of 3 and put that into fractional form
4x + 15
24 - 8x - 9 + 12x
Add or subtract the common variables
4x + 15
<u>Answer</u> : The demonstration is below :)
Step-by-step explanation :
<u>We use Pythagoras' </u><u>theorem </u><u>:</u>
- In the triangle ABC we have :
AB² = AC² - BC² = 15² - 9² = 144 = 12²
- In the triangle ABD we have :
DB² = AD² - AB² = 13² - 12² = 5²
cos(a) = BD/AD = 5/13
