Answer
now i'm going to say i'm not 100% sure but i think its 168
Step-by-step explanation:
Let
x-------> the time in minutes
y-------> the temperature in Fahrenheit degrees

we know that
<u>the change in the y-values between two points is equal to</u>

Substitute the y-values of the point A and B in the formula


<u>the change in the x-values between two points is equal to</u>

Substitute the x-values of the point A and B in the formula


therefore
<u>the answer is</u>
The change in the y-value is
and the change in the x-value is 
Answer:
59.15 in^2
Step-by-step explanation:
Using Heron's formula
semiperimeter , s = 1/2 ( 28.8+18+12) = 29.4
Area = sqrt ( 29.4(29.4-28.8)(29.4-18)(29.4-12) ) = 59.15 in^2
Answer:
Area of circle is equal A = πr²
Here r = 7.5 and π = 3.142
so,
A = 3.142(7.5)²
A = 176.17 after rounding off.