3/4b-1/6=1/2×b
1.75b=.3
b=0.2
I believe this is right. But not 100%
Answer:
1+1=2
Step-by-step explanation:
Answer:
Increases
Step by Step Explanation:
More time on your homework means more time to cheat/figure the answer out.
Answer:
We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 31.7 milligrams
Sample mean,
= 28.5 milligrams
Sample size, n = 9
Alpha, α = 0.05
Sample standard deviation, s = 2.8 milligrams
First, we design the null and the alternate hypothesis

We use One-tailed t test to perform this hypothesis.
Formula:

Putting all the values, we have

Now,
Since,
We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.
Answer:
9+11i
Step-by-step explanation:
12-3=9
4i-(-7i)=11