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 
Trial and error on this one try each pair till you find negative slopes
C and D
Using Pythagorean theorem, we can justify our answer.
if c^2 = a^2 + b^2 then triangle is right one,
if c^2 > a^2 + b^2 then triangle is obtuse and
if c^2 < a^2 + b^2 then triangle is acute triangle.
Here a=8, b=11 and c=16
Put these values in the equation
16^2 = 8 ^2 + 11^2
256 = 64 +121
256> 185
So here c^2 > a^2 + b^2 Which means triangle is obtuse triangle.
Answer: Obtuse Triangle
Answer:
It's A.
Step-by-step explanation:
The length of the major axis is a + b where a and b are the distances from each focus to any point on the ellipse.
Answer:
Step-by-step explanation:
<u>Equation Solving</u>
We are given the equation:
It's required to solve it for a.
Swap sides to have the letter on the left side:
Divide by 
:
