Answer:
d the diameter is 4 inches.
Step-by-step explanation:
d=2r=2×2=4
the amount of time of the two trips is a proportional relationship
<h3>What is proportional relationship?</h3>
mathematical expressions are said to be proportional if there unit rate are equal. this means that the expressions will give similar results when similar values are substituted into the equation.
<u>solution:</u>
Driving 7 hrs within 385 miles represents a unit rate of 385 / 7 = 55 miles per hour or 55 mph
while 3 hrs in 165 miles represents a unit rate of 165 / 3 = 55 mph
since both situations gave similar speed in miles per hour they are said to have a proportional relationship.
Read more on proportional relationship here: brainly.com/question/12242745
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Answer:
y= 0.2(x+1)^2+5 (Bottom left answer)
Step-by-step explanation:
Hope this helps :)
If you need to simplify the equation it would be:
+2r-2n+7
If not sorry..
Hope This Helps!
