Answer:
D
Step-by-step explanation:
Cuz sqr root of 20 = 2 sqrt 5, -2 sqrt 5
Answer:
(9,-3). is the answer hope u like it
True, because there us nothing there
Step-by-step explanation:
12 pounds cost $33.
so, 1 pound is ... ? well ?
it is $33/12 = $2.75
that means every pound he buys costs $2.75. no matter how many he buys, each and every pound costs these $2.75.
so, the equation is
c = 2.75×m
Answer:
See below
Step-by-step explanation:
A 90% confidence interval is centered at a parameter and is 90% sure to contain the statistic.
When you are running a statistical test, you can create a confidence interval centered at the appropriate parameter (such as the mean) to see if the statistic stated in your null hypothesis is true if it's contained in the interval. Whatever the confidence level is determines how wide the interval will be, and as such, will determine how likely the interval will catch the statistic in question.
