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:
SA=BA+LA and SA=BA+ph
Step-by-step explanation:
I just looked it up
19/24 is the answer to your question.
0.89 x 0.98 = 0.8722, so you answer is 0.8722
Answer:
B
Step-by-step explanation:
50 is half of something like if u give your friend half of your cookie you gave them 50% of it
