<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
Answer:
A. 15
B. 16
C. 21
Step-by-step explanation:
A. ((3x5)/2)x2 = 15
B. ((4x2)/2)x4 = 16
C. 5x5 - 2x2 = 21
Answer:
The result will be: 5x³ -11x² -9x + 18
Answer:
x=27.44
Step-by-step explanation:
sin(61)=24/x
x*sin(61)=24
x=24/sin(61)
x=27.44
Answer:
what are the options?!? you should tell us so I can help
