Step-by-step explanation:
12g=12(2/3g-1)+ 11
12g=24/3g-12+11
12g-24/3g=-1
12g-8g=-1
4g=-1
g=-1/4
Adding another card with value $25 would decrease the standard deviation
because it is closer to the mean the the current standard deviation.
i think that it is the third one
Answer:
Area = 168m^2
Step-by-step explanation:
Area of triangle = 1/2×base×height
Area = 1/2bh
= 1/2(8+16)(14)
= 168m^2
