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
The value added to the equation 
exists 
.
<h3>What is a perfect square?</h3>
A perfect square exists as a number that can be described as the product of an integer by itself or as the second exponent of an integer.
The perfect square trinomial exists
± 
= 
± 2ab + 
then 
The value of a = x and b = 3
The value added to the equation exists .
To learn more about perfect square refer to: brainly.com/question/6946048
#SPJ4
Answer: False
Step-by-step explanation:
Answer:
uh is the length of city a and city b's distance on the map 2.2ft? if it is the answer for 3.08 ft for c and d is 375.
Step-by-step explanation:
250/2.2*3.08=375
how old are you because your picture be lookin bad
