Answer:
72
Step-by-step explanation:
cross out 4 from left to right, right to left, you get 71 and 73, the mean of those two numbers is 72
Answer:
the answer is $56
Step-by-step explanation:
2 weeks = 14 days
14 (days) x $4 (per day) = 56
the change over 2 weeks is $56
Answer:
C.
Step-by-step explanation:
The diameter is the line across the center of the circle
Answer:
a) -36
b) y = -36x +34
Step-by-step explanation:
a) The slope is found using the derivative of the function.
f'(x) = dy/dx = 0 -9(2x) = -18x
Then at x=2, the slope is ...
f'(2) = -18·2 = -36
___
b) The point-slope form of the equation can be written as ...
y = -36(x -2) -38
Simplifying to slope-intercept form, we get ...
y = -36x +34