Answer:
*
Step-by-step explanation:
Answers
8 x - 1/2 = -4 - middle line
-3/4 x 8 = - 6 - side line
-3/4 - - 1/2 = -1/4 - top line
-1/2 - 1/2 = -1 - vertical line
Answer:
95% (two-sided) confidence interval for the proportion of all dies that pass the probe is between 0.470 and 0.574
Step-by-step explanation:
Confidence interval can be calculated as p±ME where
- p is the sample proportion of dies that pass the probe
- ME is the margin of error
and margin of error (ME) around the mean can be found using the formula
ME=
where
- z is the corresponding statistic in 95% confidence level (1.96)
- p is the sample proportion (
)
- N is the sample size (356)
Using the numbers in the formula we get
ME=
≈0.052
then the 95% confidence interval would be 0.522±0.052
Answer:
D. 7x - 6 = x + 6(x + 5)
Step-by-step explanation:
a equation will have no solution if the final value is not real or not equal
D) 7x - 6 = x + 6(x + 5)
7x-6 = x+6x+30
7x-x-6x-6-30= 0
-36≠0
so -36 ≠ 0 ... so no solution
A. 9x + 9 = 11x – 2x + 9
9x-11x+2x+9-9=0
0=0
have solution, Real, true
B. 7x + 30 = x + 6(x + 5)
7x+30 = x+6x+30
7x-x-6x+30-30= 0
0=0
have solution, Real, true
C. -5x + 9 = 2x + 9 - 7x
-5x-2x+7x+9-9= 0
-7x+7x=0
0=0
have solution, Real, true
Answer:
+/- 1.9983
Step-by-step explanation:
The critical values for a confidence interval for the population mean, with population standard deviation not known, are obtained from the student's t distribution.
The sample size is given as 64. The degrees of freedom will thus be;
sample size - 1 = 64 - 1 = 63
The confidence level is given as 95%. The level of significance will thus be;
100 - 95 = 5%.
The area in the right-tail will thus be 2.5%. Therefore, we looking for a t-value such that the area to its right is 2.5% and the degrees of freedom being 63. From the t-tables we have;
+/- 1.9983
The answer is B. I need 20 characters so sorry, jwdsausvndjsdvjvsddcjbcdjadcnahadcjwdn
