Answer:
x = -2
Step-by-step explanation:
12 + x = 10
x = 10 - 12
x = -2
Answer:
20 seconds
Step-by-step explanation:
roots are (0,0) and (20,0) so 20-0 will provide the time from takeoff to landing
It is the first one I can’t explain it but yea it’s the first choice.
The answer is .25 kilometers a minute.
This is because so you need substitute then divide to find the answer
You can check this answer by doing 15÷60 which comes out to .25 km a minute.
SOLUTION:
from OA=AB
\theta +\theta 45=180
2\theta =180-45
\theta =\frac{180-45}{2}=67.5
from sin rule,
\frac{OA}{sin\theta }=\frac{AB}{sin\theta }=\frac{OB}{sin45}
\therefore \frac{1}{sin67.5}=\frac{1}{sin67.5}=\frac{OB}{sin45}
\therefore OB=\frac{sin45}{sin67.5}=0.765366864730ml
\therefore net displacement OB=o.77ml