Answer:
31/5
Step-by-step explanation:
[f(4) - f(-1)] / 4-(-1)
No no no no no no no no no no no no
Answer:
32/4
simplified is 8/1
Step-by-step explanation:
Answer:
Step-by-step explanation:
- Let the speed of the boat be x
- Speed against the current in the river is x - 2
<u>Time in the river:</u>
<u>Time in the lake:</u>
<u>The difference:</u>
Solve for x to find the speed of the boat
<u>Multiply both sides by x(x - 2) to clear the fraction:</u>
- 6x = 15(x - 2) - x(x - 2)
- 6x = 15x - 30 - x² + 2x
- x² - 11x + 30 = 0
- (x - 5)(x - 6) =0
- x -5 = 0, x - 6 = 0
- x = 5 km/h, x = 6 km/h
Answer:
Quadrant IV
Step-by-step explanation:
15π/4 is the same angle as 15π/4 − 2π = 7π/4. Which terminates in the fourth quadrant.
