Answer:
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 240
Sample mean, = 250
Sample size, n = 100
Alpha, α = 0.05
Sample standard deviation, s = 40
First, we design the null and the alternate hypothesis
Interpretation:
The null hypothesis state that sample belongs to the population and has a cholesterol level of greater than equal to 240 whereas the alternate hypothesis states that the sample does not belong to the population and have a cholesterol level of less than 240.
Answer:
A
Step-by-step explanation:
Answer:
7 - x/3 or 21 - x
Step-by-step explanation:
Seven less than the quotient of x and three
7 - x/3
if you need more workings it will be:
make 7 - x/3 a single fraction by finding the LCM of 1 and 3 which is 3 and multiply them by their LCM
(7)3 - (x/3)3
21 - x
Hope this helps
Answer:
600 newtons
Step-by-step explanation:
Answer: x=-8
Step-by-step explanation: 12-5x+6x=4 1. Combine like terms: -5x+6x+12=4 2. Simplify: x+12-12=4-12 3. Subtract 4 from -12 so that you can find out what x is: x=-8