Answer:
18 s
Step-by-step explanation:
We are given that
Distance between Bob and John=450 feet
Speed of Bob=11ft/s
Speed of John=14 ft/s
We have to find the time after they will meet when they are travel towards to each other.
Total distance traveled by Bob and John in 1 s=11+14=25 ft
25ft covered by Bob and John in 1 s
1 ft covered by Bob and John in 
450 ft covered by Bob and John in 
Hence, they will meet after 18 s.
Answer:
The ratio is 2:1
Step-by-step explanation:
This is since there are 2 times the amount of hands as there are phones
Pulling out a black pen first will grant you a 40% chance of that occurring, then when you put it back the probability of you pulling out a red pen would be 50% so in decimal form these two values would be .40 and .50 multiply these two together you should get .20 or a 20% chance. Also a written fraction would be 1/5, all of which are valid answers.
Answer: 299 m/s
Step-by-step explanation:
The first step is to take the first derivative of the equation given. This will give us the equation for velocity which we will then substitute the 7 in for t.
To derive the equation you multiply the coefficient by the power of the variable, then subtract one from the variable.
v(t) = 6t^2 + 5
Now input 7 in for t to find the velocity.
v(7) = 6(7)^2 + 5
v(7) = 299 m/s
Answer is C but if its on grad point your answer is 0.5(2)^x