| 9 - 21 |
| -12 |
The distance between (9,18) and (21,18) is 12.
Answer:
40 mph
Step-by-step explanation:
To find the maximum speed at which the car can travel, as the distance it requires to stop is 168 feet, we just need to use the value of d = 168 in the equation, and then find the value of s:
168 = 0.05s^2 + 2.2s
0.05s^2 + 2.2s - 168 = 0
Using Bhaskara's formula: we have:
Delta = 2.2^2 + 4*0.05*168 = 38.44
sqrt(Delta) = 6.2
s1 = (-2.2 + 6.2)/0.1 = 40 mph
s2 = (-2.2 - 6.2)/0.1 = -84 mph (a negative value does not make sense as 's' is the speed of the car)
So the maximum speed of the car is 40 mph
Let one of the integers be x
Other integer = x + 2
x + x +2 = 244244
2x = 244242
x = 122121
x + 2 = 122123
Thus the two integers are 122121 and 122123
Answer:
the answer to this question is clearly a
The answer is c because all you are doing here is subbing the variable r for 5b.
