Answer:
F(x) = -12/25x^2 +24x -268
Step-by-step explanation:
Eliminate parentheses and collect terms.
F(x) = -12/25(x^2 -50x +625) +32
F(x) = -12/25x^2 +24x -268
At 7 pm, the temperature was 66*F
Temp = 78 - 3x where x = number of hours
78 - 3(7-3)
78 - 12 = 66
B
To find the area you multiply width times height, here for the bigger rectangle, to find the area you multiply 7*6 and then add that with 6 * x because those are the width and height of the smaller rectangle.
Second part
I believe that Wiliam chose C because he accidentally thought that adding everything was correct. He added 7+6 to get 13 for the bigger rectangle and then for the smaller rectangle decided that to find the area you would add 6 and x.
Answer:
line seg
Step-by-step explanation: