Answer:
0
Step-by-step explanation:
The + on the zero means the limit as x approaches 0 from the right side
Px - 45 = QX + 75
Px - Qx = 75 + 45 = 120
A. If P = - 45 and Q = - 75, then
- 45x + 75 x = 120
30x = 120 and x = 40
B. If P = 45 and Q = - 15, then
45x - 15x = 120
30x = 120
x = 40
D. If P = 15 and Q = 75, then
15x - 75x = 120
- 60x = 120
x = - 2
C. If P = 15 and Q = 15, then
15x - 15x = 120
0 = 120 which is absurd.
Hence, P = 15 and Q = 15 result in an equation with no solution.
D. 6. months. This can be extended for a further three years, however.
Answer:
Cosine Formula :
AC² = AB² + BC² - 2(AB)(BC)cosB
AC² = (40)² + (60)² - 2(40)(60)cos(115°)
AC² = 1600 + 3600 - (4800×(-0.42))
AC² = 5200 + 2016
AC² = 7216
AC = √(7216)
AC = 84.95 km
Hence, the distance of the straight line AC is <u>84.95 km</u>
- <u>84.95km</u> is the right answer.