The formula is
We have:
Substituting these values into the formula, we have
⇒ divide each term by 16
⇒ find the pair of numbers that multiply to give 4 and sum gives -5 which is -1 and -4
⇒ We have two values of t
⇒
⇒
The time when the projectile reached 64 feet is at t=1 and t=4
The solution for the #23 equation is either x=9 or x= -3
Answer:
Malcom's maximum speed is 200 km/h
Ravi's maximum speed is 320 km/h
Step-by-step explanation:
First we have to make two equations one that represents the maximum average speed of the 2 together and another that represents the relationship between their maximum speeds
R = Ravi's maximum speed
M = Malcom's maximum speed
(R + M) /2 = 260 km/h
2M = R + 80 km/h
we are going to solve for M in the first equation
(R + M) /2 = 260 km/h
(R + M) = 260 * 2
M = 520 - R
we replace M with (520 - R) in the second equation
2M = R + 80 km/h
2(520 - R) = R + 80
1040 - 2R = R + 80
1040 - 80 = R + 2R
960 = 3R
960/3 = R
320 = R
replace R with its value in the first equation
M = 520 - R
M = 520 - 320
M = 200
Malcom's maximum speed is 200 km/h
Ravi's maximum speed is 320 km/h
Answer:
113.1 in
Step-by-step explanation:
C = πd
d = 36
C = 36π = 113.1 in
