Energy is either released or absorbed
Answer:
-4
Step-by-step explanation:
That's the answer above
ΔABC is an isosceles triangle therefore ∡B = ∡C.
ΔDCA is a rectangular triangle therefore ∡y + ∡C = 90°
22° + ∡C = 90° |subtract 22° from both sides
∡C = 68°
If u and v are perpendicular, then their dot product is zero:
Solve for p :
A should be the right answer