Answer:
2 1/3 hours or 2 hours 20 minutes.
51.4 mph to 1 decimal place.
Step-by-step explanation:
Time = distance speed
First 50 miles time taken = 50 / 60 = 5/6 hours
Second 50 miles - time = 50/40 = 5/4 hours.
Final 20 miles - time taken = 20 / 80 = 1/4 hours.
Total time taken = 5/6 + 5/4 + 1/4
= 5/6 + 6/4
= 10/12 + 18/12
= 28/12
= 7/3 or 2 1/3 hours or 2 hours 20 minutes.
Average speed = total distance / total time
= 120 / 7/3
= 120 * 3/7
= 51.4 mph to 1 decimal place.
Answer:
D) y=-4x+1
Step-by-step explanation:
Solution:
<u>Note that:</u>
<u>Substituting the values into the equation.</u>
- Volume = LBH = 160 cm²
- => (5)(2)H = 160 cm²
<u>Find the height (H).</u>
- => 10H = 160 cm²
- => H = 16 cm
Answer:
D
Step-by-step explanation:
If x=±6, that will result in the function hitting infinity