let x be the number
2(x+5)= ±3(x-3)
2x+10= 3x-9 or 2x+10= -3x+9
x=19 or x=0.2
Answer:
Were is the graph
Step-by-step explanation:
show me the graph
Answer:
Step-by-step explanation:
We want to determine a 90% confidence interval for the true population mean textbook weight.
Number of sample, n = 22
Mean, u = 64 ounces
Standard deviation, s = 5.1 ounces
For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean ± z ×standard deviation/√n
It becomes
64 ± 1.645 × 5.1/√22
= 64 ± 1.645 × 1.087
= 64 ± 1.788
The lower end of the confidence interval is 64 - 1.788 = 62.21 ounces
The upper end of the confidence interval is 64 + 1.788 = 65.79 ounces
Therefore, with 90% confidence interval, the true population mean textbook weight is between 62.21 ounces and 65.79 ounces
K=-27 i got this from and app called mathpapa they give u the answer and show you step by step what to do
Yes so basically 44k and 66k4 are the answer is in the your welcome
