The eq of the circle in standard form is x^2+y^2+2ux+2vy +d=0 where (-u,-v) is the centre and sq root of u^2+v^2-d is the radius
<h3>Answer: 10</h3>
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Explanation:
We'll start off converting each mixed number into an improper fraction.
The formula to use is 
So,

And,

So the task of computing
is exactly the same as computing 
Notice how we have an 8 up top and an 8 down below. Those 8's cancel out and we're left with
. That fraction does not reduce any further.
The last step is to convert that improper fraction result to a mixed number.

Or you could note that 17/3 leads to 5 remainder 2. The 5 is the whole part and the 2 forms the numerator of the fractional part 2/3.
The value is in
form where
Therefore, A+b+c = 5+2+3 = 10
Divide 6 by 1/3. I don't know what you are asking.
The distance traveled by the balloon in every minute makes an arithmetic sequence with a first term equal to 40 ft and common difference equal to 20. The nth term of an arithmetic sequence is calculated by,
an = a1 + (n - 1) x d
Substituting,
an = 40 + (15 - 1) x 20 = 320
Thus, the answer is letter B. 320 feet.
Answer:
a) x = 1.52
b) s = 1.16
Step-by-step explanation:
We have that:
5 students watched 0 movies.
9 students watched 1 movie.
5 students watched 2 movies.
5 students watched 3 movies.
1 student watched 4 movies.
(a) Find the sample mean x.
Sum divided by the number of students. So

(b) Find the approximate sample standard deviation, s.
Standard deviation of the sample.
Square root of the sum of the squares of the values subtracted from the mean, divided by the sample size subtracted by 1. So
