Answer:
y=3(x+1)^2+7
Step-by-step explanation:
K= 16
25x^2+40x+16x comes to be (5x+4)^2.
9514 1404 393
Answer:
270 km
Step-by-step explanation:
Distance is related to speed and time by ...
distance = speed · time
distance = (90 km/h)(3 h) = 270 km
The car will travel 270 km in 3 hours.