Adding all of the areas together:
5 x 6 = 30
4 x 6 = 24
3 x 6 = 18
4^2 + 3^2 = 16 + 9 = 25(square root) = 5
" " = 5
30 + 24 + 18 + 5 + 5 = 82 ft^2
Answer:
244
Step-by-step explanation:
fraction fraction 1/2 the quotient of 734 and 246
Answer:
−
1
/2
<
x
<
0
or x
>
1
Step-by-step explanation:
Solve the inequality by finding the roots and creating test intervals.
Glad I could help!!
Answer:
Step-by-step explanation:
Given that X, the number of square feet per house is N(mean, 137)
Sample size = 19
Sample mean x bar =1350 sq ft
Since population std dev is given,
std error of sample = ![\frac{137}{\sqrt{19} } \\=31.43](https://tex.z-dn.net/?f=%5Cfrac%7B137%7D%7B%5Csqrt%7B19%7D%20%7D%20%5C%5C%3D31.43)
Since sample size is small, t critical value can be used
df = 18
t value for 80% two tailed = 1.333
Margin of error = ±1.333(std error) = ±![1.333*31.43\\=41.896](https://tex.z-dn.net/?f=1.333%2A31.43%5C%5C%3D41.896)
Confidence interval = sample mean ±margin of error
= ![1350-41.896,1350+41.896\\=(1308.104,1391.896)](https://tex.z-dn.net/?f=1350-41.896%2C1350%2B41.896%5C%5C%3D%281308.104%2C1391.896%29)