5 cm since a pentagon has 5 sides just multiply one side by 5
1x5=5
L*W=51
L=W+4
Replace L with W+4: (W+4)*W=51
W²+4W-51=0
use the quadratic formula to find W:5.4 (sorry cannot type the formula here)
the length is 5.4+4=9.4
Answer:d). standard deviation
Step-by-step explanation:
Average rate of change = slope
Use slope formula. (Rise over Run)
look at the 2 points where x=0 and x = 2, this interval covers the first 2 seconds.
f(0) = 50, f(2) = 100
The avg rate of change is 25 units per second.
The answer is the first choice, "y=-3x."
When you multiply the x-inputs by -3, they come out as the values in the y-input section.
1·-3=-3
3·-3=-9
-2·-3=6