Answer:
At least 6907 people.
Step-by-step explanation:
Population std deviation = sigma= 10.6
Since population std deviation is known, we can use normal probability table to get sample size from confidence interval.
The sample mean weight loss is within 0.25 lb of the true population mean.
Hence margin of error < 0.25
Margin of error = z critical (std dev/n) where n = sample size
Z critical for 95% = 1.96
Hence 0.25 >1.96(10.6)/sq rt n
Simplify to get
sq rt n > 1.96(10.6)/0.25 = 83.104
Square both the sides to get
n > 83.104 square = 6906.27
i.e. sample size should be atleast 6907.
The answer is: 
The explanation is shown below:
1. You have the following expression given in the exercise above:

2. By applying the distributive property, you obtain:

3. Now, you must factor

in the numerator and

in the denominator:
4. Simplify:
Answer:
The answer is 0.372 because you jus dividing it by 10 jus like 0.372 x 10= 3.72 you jus putting the 0 first when dividing .
Step-by-step explanation:
1.)Substitute using given information: 8x-2(3)-3
2.)Simplify: 8x-6-3=8x-9
8x-9