Answer:
2 hours 1 minute 9.23 seconds
Step-by-step explanation:
Since they are traveling in opposite directions, their separation speed is the sum of the magnitudes of their speeds: 30 +22 = 52 mph.
The time is related to speed and distance by ...
time = distance / speed
= (105 mi)/(52 mi/h = 2 1/52 h ≈ 2 h 1 min 9.23 sec
It will take a little over 2 hours before they are 105 miles apart.
knowing the answer is between 3 & 4 plug those as x and see what you get for answers than adjust the number accordingly
3^3+2(3) = 33 so its higher than 3
4^3 + 2(4) = 72 so it is lower than 4
try the middle so try 3.5
3.5^3 + 2(3.5) = 49.875
question states use 1 decimal place so now try 3.6
3.6^3+2(3.6) = 53.856
3.5 is closest
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Formula for circumference = 2πr
where r = radius
π = 3.14
10. Radius = 4in
Circumference = 2πr = 2 × 3.14 × 4
= 25.12in
11. Radius = 7 yard
Circumference = 2πr = 2 × 3.14 × 7
= 43.96 yard
12. Radius = 3.6 km
Circumference = 2πr = 2 × 3.14 × 3.6
= 22.608 km
13. Radius = 1.1mm
Circumference = 2πr = 2 × 3.14 × 1.1
= 6.908mm
14. Radius = 1/4mi
Circumference = 2πr = 2 × 3.14 × 0.25
= 1.57mi
