Solve the problem.Newton's Law of Cooling states that the rate of change of temperature of an object is proportional to the difference in temperature between the object and the surrounding medium. Thus, if T is the temperature of the object after t hours and T0 is the (constant) temperature of the surrounding medium, then
where k is a constant. A cup of coffee with a temperature of 101°F is placed in a freezer with a temperature of 0°F. After 5 minutes, the temperature of the coffee is 67°F. What will its temperature be 16 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 23°F
B. 25°F
C. 27°F
D. 21°F
Answer: C
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
Find the credit given and the balance due after the partial payment.Invoice amount: $310Invoice date: April 10Terms: 2/20 prox.Date paid: May 16Partial payment: $205
A. Credit: $209.18 Balance: $100.82 B. Credit: $209.10 Balance: $100.90 C. Credit: $205.00 Balance: $105.00 D. Credit: $200.90 Balance: $109.10
Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.x2 - y2 = 7.82x = 2y - 5
A. (-6.31, 5.65), (2.97, 1.01) B. (-6.31, -5.65), (2.97, -1.01) C. (-2.97, -1.01), (6.31, -5.65) D. (-2.97, 1.01), (6.31, 5.65)
Use the Pythagorean theorem to find the missing side of the right triangle with legs a and b, and hypotenuse c. Approximate values to the nearest tenth when appropriate.a = 9 yd, c = 15 yd
A. 12 yd B. 14 yd C. 15 yd D. 11 yd