The answer for this problem is C.-1
Via transfer dictionary. Usually check the university's website for one. For example below I put in a university and on the right is UML's equivalent to the course.
So transferring from Northeastern university to umass lowell
How fast is the area of the spill increasing when the radius of the spill is 18 inches is d) 90pi in ^2/min.
<h3>Area of the spill</h3>
Area of the spill=S=πr²
dS/dr=(πr²)=2πr
Radius change with speed=dr/dt =2.5(m/s)
Area of the spill will increase with speed
dS/dt = dS/dr × dr/dt =2πr ×dr/dt
=2π×18×2.5
=282.74m²/s or 90pi in²/min
Therefore the correct option is D.
Learn more about area of the spill here:ttps://brainly.com/question/3818648
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because you will acostumbrate to do that alway then when a accident happens you do not have the seat belt you could have a big accident
