Answer:
b 6.25 km/h
Step-by-step explanation:
Average speed can be viewed as the rate of change in distance with respect to time. A car traveling at an average speed of 25 miles per hour covers an average distance of 25 miles every hour. So for a horse traveling 25 km in 4 hrs has an average speed of 6.25 km/ hr
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Answer:
amplitude = 3
Step-by-step explanation:
The standard form of a cosine function is
f(x) = a cos(bx + c) + d
amplitude = | a |, period = 
phase shift = - 
, d is the vertical shift
Given the above function, then
amplitude = | - 3 | = 3
The remainder is five. heres the proof.
Answer:
d = 3.5t + 1
Step-by-step explanation:
The linear function would have to multiply the speed she runs at the track by the number of hours that she spent running. Then it should add this amount to the 1 mile that she walked to get to the track. If we use the variable d as the total distance that she ran and walked, and the variable t to represent time then we would create the following linear function/model.
d = 3.5t + 1
