On a 70 degree day, a pork chop was taken off the grill at a temperature of 145 degrees. After 10 minutes, the pork chop was 130 degrees. Using the formula for Newton's Law of Cooling: T (t) = 75e" + 70,
determine the temperature of the pork chop after 15 minutes. Round to the nearest degree.

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it would be a on edgenuit y

the diagram below is your final answer

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x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81