We need to find the direction the ball is moving, so wee have this parametric equation, namely:

The graph of this equation is given in figure below. So, we well substitute some values of t in the equation:
If t = 0x = 4 and y = 3
P0(4, 3)
if t = 1x = 3.08 and y = 5.52
P1(3.08, 5.52)
if t = 2x = 1.16 and y = 5.72
P2(1.16, 5.72)
So, as shown in the figure, the answer is
B. <span>
counterclockwise </span>
112*3*512= 1.72*10^5
10^5=100000
1.72*100000=172000
Answer:
We need a sample size of at least 383.
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
.
The margin of error is:

85% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 85% confidence level with an error of at most 0.03
We need a sample size of at least n.
n is found with 
Then






Rounding up
We need a sample size of at least 383.
49.7 temperature if you round it up it would be 50.
1.7 times 4 is 6.8 and 56.5 minus 6.8 is 49.7 and of you round that up it would be 50.
For this case we have that by definition, the distance between two points is given by:

We have the following points:

Substituting we have:

Thus, the distance between the points is
Answer:
