Answer:
90 degrees
Step-by-step explanation:
Complete question
A coffee is sitting on Mr. Hunt's desk cooling. It cools according to the function T=70(0.80)^x+20, where x is the time in minutes and T is the temperature in degree Celsius. WHAT IS THE INITIAL temperature of the coffee
The initial temperature occurs at x = 0
Substitute x = 0 into the expression;
T=70(0.80)^x+20
T =70(0.80)^0+20
Since any value raise to power of zero is 1, hence;
T = 70(1)+20
T = 70+20
T = 90 degree Celsius
Hence the initial temperature of the coffee is 90 degrees
Answer: B: Sun.
Step-by-step explanation: Jupiter is the largest mass in our solar system, other than the sun. Everything else is too small.
Answer:
blue circle = 62.8 cm
orange circle = 31.4 cm
Step-by-step explanation:
orange circle = π2r = (3.14)(2)(5) = 31.4 cm
blue circle = π2r = (3.14)(2)(10) = 62.8 cm
Answer:
hello :
f(x) = 13/ (x-3)
f(x) exist : x - 3 ≠ 0
x - 3 = 0 : x = 3
the domain of the function : f is D = ]-∞:3[ U] 3;+∞[
Ans: -4.3
Integers are all whole numbers negative, positive, and 0
Hope this helped :)