(2x+1)(x-2) = 2x^2 - 4x +x -2= 2x^2-3x-2
That's D.
A(t) is the amount as a function of the temperature t.
Answer:
26.28
Step-by-step explanation:
First, add the side lengths of what you know. 6 + 6 + 8 = 20.
Then, find the circumference of the circle, BUT make sure you divide it by 2 because it is a semicircle in the figure.
The formula is 2
r, so plug in the radius = 2
So the circumference is 4
, then divide by 2 to get 2
20 + 2
= 26.28
The slope of a horizontal line is always 0 as slope is rise over run . In the graph if you take any two points the y value is always 4 (1,4) and (2,4)
slope is 4-4/2-1=0/1 =0
For number 9 the answer is B