Answer:
y=6
RS= 47
ST= 22
RT= 69
Step-by-step explanation:
Answer:
1)
Independent variable: no. of passengers
Dependent variable: Average speed
2)
Inverse relationship
Fuel consumption increases as speed decreases
3)
Direct relationship
As the no. of passengers increase, fuel consumption also increases
4)
As the no. of passengers increase:
* speed decreases
* Fuel consumption increases
25x² + 1 = 5
25x² + 1 - 5 = 0
25x² - 4 = 0 By difference of two squares
(5x)² - (2)² = 0
(5x - 2)(5x + 2) = 0
5x - 2 = 0 or 5x + 2 = 0
5x = 0 + 2 5x = 0 - 2
5x = 2 5x = -2
x = 2/5 x = -2/5
x = 0.4 x = -0.4
x = + 0.4 or -0.4
The square root of 25 would be 5!
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