Acontainer of oil has spilled on a concrete floor. the oil flow can be expressed with the function n(t) = 7t, where t represents time in minutes and n represents how far the oil is spreading. the flowing oil is creating a circular pattern on the concrete. the area of the pattern can be expressed as a(n) = πn2. part a: find the area of the circle of spilled oil as a function of time, or a[n(t)]. show your work. (6 points) part b: how large is the area of spilled oil after 8 minutes? you may use 3.14 to approximate π in this problem. (4 points)

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation: