Erik drives 19.2 miles in 16 minutes. He passes a sign which gives the speed limit as 65 mph.
By how much, in mph, did Erik's average speed exceed the speed limit?​

Erik's average speed exceeds the speed limit by 6.91 miles per hour.

Step-by-step explanation:

Let suppose that Erik travels at constant speed. Hence, the speed (), measured in miles per hour, is determined by following equation of motion:

(1)

Where:

- Distance, measured in miles.

- Time, measured in hours.

Please notice that a hour equals 60 minutes. If we know that and , then the speed of Erik is:

Which is 6.91 miles per hour above the speed limit.

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

answer: download photomath it's legit.

step-by-step explanation: