A=2(LW+LH+WH)
A=2((7/8)(1/3)+(7/8)(2/5)+(1/3)(2/5))
A=2(7/24+14/40+2/15)
A=14/24+28/40+4/15
A=7/14+7/10+4/15 210
A=(105+147+56)/210
A=308/210
A=(210+98)/210
A=1 98/210
A=1 7/15
Answer:
Part B: 8 and 2 (more answers ofc)
Part C: Two more dots on 6 (more than one answer tho)
Step-by-step explanation:
<em>Part B:</em>
The added number of dots is 39 at the beginning and the mean is 3.9. (39/10). Since we have to add 2 dots the equation will be (<em>39 + ? + ?) / 12 = Less than 3.9</em>. We also need the range to increase. This means that one of the blanks must be larger than 7 (the largest dot on the dot plot!) I just went with 8 to keep the mean as small as possible. This leaves 1 more blank to figure out. There are multiple answers to this problem but I went with 2 just because then the mean would be 3.5 a better answer than something like 3.58333333333.
<em>Part C:</em>
If you think about it all the dots added up should be 6x12 = 72. Currently all the dots add up to 60. 72-60 is 12. This means that 12 is equal to 2 dots. I guess you could also do 5 and 7, 8 and 4, etc.
G'day
-birb
Answer:
(2x+1)(2x−1)
Step-by-step explanation:
