Find the sum of the first 15 numbers in a sequence that has a1 = 6 and d=4
2 answers:
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Answer:
84 :)
Step-by-step explanation:
bottom surface area=
top surface area=
lateral surface area=
add this together you get TOTAL surface area of 84
Answer:
p(on schedule) ≈ 0.7755
Step-by-step explanation:
A suitable probability calculator can show you this answer.
_____
The z-values corresponding to the build time limits are ...
z = (37.5 -45)/6.75 ≈ -1.1111
z = (54 -45)/6.75 ≈ 1.3333
You can look these up in a suitable CDF table and find the difference between the values you find. That will be about ...
0.90879 -0.13326 = 0.77553
The probability assembly will stay on schedule is about 78%.
