Answer:
Total cost is $437.92
Step-by-step explanation:
Rectangular area=125•40=5000 yd²
Two equal semicircles=one single circle
Area of circle=πr²=20²•π=400•3.14=1256 yd²
Total field area=circle+rectangle=6256yd²
Cost=area•0.07yd²=6256•0.07=437.92
Answer: 9
Step-by-step explanation:
12 insulators = 183/4 hours
x = 281/8
x × 183/4 = 12 ×281/ 8
183x/4 = 6 × 281/4
183x / 4 = 1686 / 4
4 cancel out 4
183x = 1686
Divide bothside by 183
x = 1686/183
x= 9.21311
x = 9 approximately.
Answer:
32
Step-by-step explanation:
In ΔLMK
short leg /long leg = 18/24
In ΔLMJ
short leg /long leg = 24/JK
Now we make them equal
(18/24) = (24/JK), cross multiply
18·JK = 24², divide both sides by 18
JK = 24²/18
JK = 32
Answer:
Step-by-step explanation:
Given that The data to represent average test scores for a class of 16 students includes an outlier value of 78.
We can find sum of all 16 test scores = 84(16) = 1344
Outlier found = 78
If outlier is removed new sum = 1344-78 = 1266
Number of entries without outlier = 15
New average = 1266/12 =84.4
We find that average of new data increases.
Also whenever we remove outlier std deviation also would be reduced.
9 comes in the period of million and 13 in thousands period
