Hello !
1. 15 + 37 = 52
2 . 22+ 49 = 71
3 . 33 + 26 = 59
4 . 34 + 18 = 52
I found these answers by adding the squares together .
I figured out question 4 by adding the amount of feet the tree grew.
Answer:
320 in
Step-by-step explanation:
Answer:
We need a sample size of 564.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
The margin of error is:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
Based upon a 95% confidence interval with a desired margin of error of .04, determine a sample size for restaurants that earn less than $50,000 last year.
We need a sample size of n
n is found when
So
Rounding up
We need a sample size of 564.
Answer:
113.04
Step-by-step explanation:
6*6=36
36*3.14=113.04
Answer: 248.80 miles ( Approx)
Step-by-step explanation:
Let A shows the initial position of the plane, B shows the position of plan after traveling at an angle of 40° north of east at 110 mph for 2 hours and C represents the final position of plan.
Then According to the question,
miles ( because plane traveled for 2 hours with the speed of 110 mph)
miles ( Because plane traveled for 1/2 hour with the speed of 50 mph)
Now, ( shown on diagram)
Thus, By cosine law,
Thus, the plane is 248.80 miles from its starting point.