Step-by-step explanation:
solve the following without using calculator
9514 1404 393
Answer:
- 160 yd³ must be hauled
- $520 is the cost
Step-by-step explanation:
There are 3 feet in a yard, so the volume of the hole is ...
(45 ft)/(3 ft/yd) × (16 ft)/(3 ft/yd) × (6 ft)/(3 ft/yd)
= (15 × 16/3 × 2) yd³ = 160 yd³ . . . volume to be hauled
__
The cost is $13/(4 yd³), so the total cost will be ...
($13/(4 yd³)) × 160 yd³ = $520 . . . cost of hauling
Answer:
Step-by-step explanation:
take 23 degree as reference angle
using tan rule
tan 23=opposite/adjacent
0.42=25/x
x=25/0.42
x=59.52
x=60
Answer: NO.
Step-by-step explanation:
We know that , the 95% confidence interval indicates that the researcher can be 95% sure that the true value of population mean falls in it.
Given : A company is interested in estimating the costs of lunch in their cafeteria.
After surveying employees, the staff calculated that a 95% confidence interval for the mean amount of money spent for lunch over a period of six months is ($720, $900).
Then, the correct interpretation would be : The company can be 95% sure that the true value of population mean falls in it.
