Answer:
Solution given:
< 1+ 83°= 180 [co- interior angle]
<1=180-83=97°
<1=97° is your answer
Answer: The 95% confidence interval estimate of the population mean is (1760, 1956) .
Step-by-step explanation:
Formula for confidence interval for population mean() :
, where n= Sample size
= sample mean.
= Two-tailed critical z-value
= population standard deviation.
By considering the given information, we have
n= 81
kilowatt-hours.
kilowatt-hours.
By using the z-value table ,
The critical values for 95% confidence interval :
Now , the 95% confidence interval estimate of the population mean will be :
Hence, the 95% confidence interval estimate of the population mean is (1760, 1956) .
7.2 x 10
4 x 10-9
A
1.8 x 102
B
1.8 x 10-2
С
1.8 x 10-8
D
1.8 x 10-8
Answer:
1.8 × 10^10
Step-by-step explanation:
(7.2 × 10 = 72)
(72) ÷ (4 × 10^-9) = 1.8 × 10^10
Answer:
a = 60
Step-by-step explanation:
Since it is a quadrilateral, the sum of interior angles is equal to 360°. Now you have to create an equation to solve this question. To create an equation, you have to add all the interior angles to 360°.
The equation would be 2a°+a°+a°+2a° = 360°.
Then you would simplify it to 6a° = 360.
You would divide 6 on both sides to get to a° = 60.
Therefore, the value of a is 60.
Hope this helped! If not, please let me know! <3
Answer:
6 miles
Step-by-step explanation:
2 hours can be made into 1 hour by dividing by 2. In order to keep the ratio, you also have to divide the miles by 2, giving you 6.
2:12
1:6