Answer:
Y<4
Step-by-step explanation:
Answer:
she is 1.5 meters below sea level
Step-by-step explanation:
Let's find at first
Let's find (a+b)(a-b)....
we should divide both side of fraction by b and we will get the following:
and (a-b)/(a+b) is same as (1/[(a+b)/(a-b)]) so we can use previous answer and finally we will have (a-b)/(a+b) = 1/[ (tanx + 1) / (tanx - 1)] = (tanx - 1)/(tanx + 1) and final answer will be this:
Answer:
For this case we want to determine if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than .66 (a;ternative hypothesis) and then the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the estimated proportion for this case would be:
Step-by-step explanation:
Previous concepts
A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".
The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".
The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".
Solution to the problem
For this case we want to determine if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than .66 (a;ternative hypothesis) and then the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
And the estimated proportion for this case would be:
Answer:
Step-by-step explanation:
E and F are horizontally aligned, so the slope of EF is 0 and its length is 16-10 = 6.
G and H are horizontally aligned, so the slope of GH is 0 and its length is 16-10 = 6.
F and G are vertically aligned, so FG is vertical and its length is 10-4 = 6.
E and HG are vertically aligned, so EH is vertical and its length is 10-4 = 6.
Quadrilateral EFGH is a square.