Each side of the square would be 80/4 = 20 cm. so its area = 20^2 = 400 cm^2.
Th rectangle will have perimeter = 80 = 2x + 2(x - 12) where x = height of the rectangle
4x = 80+24 = 104
so x = 26
area of rectangle = 26*(26-12) = 364 cm^2
Answer:
The 99% lower confidence bound for the true average weight loss is 3.98 pounds.
This means that we can be 99% sure that the mean weight loss for all obese adults on a low-carb diet is positive.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 11 - 6.02 = 3.98 pounds
The 99% lower confidence bound for the true average weight loss is 3.98 pounds.
This means that we can be 99% sure that the mean weight loss for all obese adults on a low-carb diet is positive.
Answer:
Area= 89.38
Volume=???
Step-by-step explanation:
I had to teach myself this sh't ian even learn this yet. Sorry if its wrong bby girl
Answer:
Step-by-step explanation:
The diagram is shown in the attachment.
By the altitude -leg rule :
This implies that:
By cross multiplication:
Take square root to get:
Using the Pythagoras Theorem: