Answer:
Option A, $65,280
Step-by-step explanation:
The volume of the tank is,
12×20×15+40×(50-15)×12
= 3600+16800
=20400 cubic meters
For each cubic meter, it costs $3.20, so for 20400 cubic meters it'll cost,
20400×$3.20
= $65,280
Answered by GAUTHMATH
Answer:
w x 7 + 6 x 7
Step-by-step explanation:
Advice: Please make sure you cut out your tabs and your personal information while asking questions. I can easily see on the screenshot that your name is Isabella Fletcher.
Answer:
a.(0.17; 0.21)
Step-by-step explanation:
The confidence interval is always centered at the mean of the sample you take. In this case, the average value of the sample is 38/200 = 0.19. The only interval of length 0.04 centered at 0.19 is (0.17; 0.21). Note that the intervals should have length 0.04 in order for the margin of error to be 0.02.
I believe the answer is B
