All categories

3 years ago

Write the standard equation of the circle below.

Mathematics

2 answers:

Sergio039 [100]3 years ago

7 0

(x - 3)² + (y - 2)² = 2

Natasha_Volkova [10]3 years ago

5 0

Answer:

(x - 3)² + (y - 2)² = 2

Step-by-step explanation:

Every negative symbol in parentheses give you the OPPOSITE terms of what they really are, so you will be moving 3 blocks east up 2 blocks north. Then, we have to know the size of the radius on each side all around from the centre of the circle, which in this case is 2, not 4. Although R² is part of the formula, you do not square it because 2 is the square of 1,414213562:

2 ≈ 1,414213562²

If it was 4, 4 would be considered the square of 2.

I am joyous to assist you anytime.

You might be interested in

CHECK MY ANSWER!? Which of the following is true about the polynomial 3x^6-4? Select all that apply.

Ivenika [448]

The polynomial is written in standard form and has three terms.

3 0

3 years ago

This is a question I need help with

OverLord2011 [107]

Answer:

Step-by-step explanation:

180=35+90+m∠3

5 0

2 years ago

A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occ

Shkiper50 [21]

Answer:

a) The mean number of cases is 0.14608 cases.

b) The probability that the number of cases is exactly 0 or 1 is 0.990.

c) The probability of more than one case is 0.010

d) No, because the probability of more than one case is very small

Step-by-step explanation:

We can model this problem with a Poisson distribution, with parameter:

$\lambda=r*t=0.000011*13,280=0.14608$

a) The mean amount of cases is equal to the parameter λ=0.14608.

b) The probability of having 0 or 1 cases is:

$P(k=0)=\frac{\lambda^0 e^{-\lambda}}{0!}=\frac{1*0.864}{1} =0.864\\\\ P(k=1)=\frac{\lambda^1 e^{-\lambda}}{0!}=\frac{0.14608*0.864}{1} =0.126\\\\P(k\leq1)=0.864+0.126=0.990$

c) The probability of more than one case is:

$P(k>1)=1-P(k\leq 1)=1-0.990=0.010$

d) The cluster of 4 cases can not be due to pure chance, as it is a very high proportion of cases according to the average rate. Just having more than one case has a probability of 1%.

7 0

3 years ago

How do you find percentages?

DochEvi [55]

To calculate percentage increase, use the following method:

First, Work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number

Now, divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

Also, If your answer is a negative number it is a percentage decrease.

To calculate percentage decrease, use this method:

First, Work out the difference (decrease) between the two numbers you are comparing.

Decrease = Original Number - New Number

Then, divide the decrease by the original number and multiply the answer by 100.

% Decrease = Decrease ÷ Original Number × 100

Also, If your answer is a negative number then it is a percentage increase.

If you wish to calculate the percentage increase or decrease of several numbers then I recommend using the first formula. Positive values indicate a percentage increase whereas negative values indicate percentage decrease.

4 0

3 years ago

Mike has 12 red marbles. He has twice as many blue marbles as red marbles and 3 times as many yellow marbles as red marbles. San

Mariulka [41]

Ok well, first of all, you must do 12 x 2 because if Mike has twice as many of red marbles, (12 red) then you must multiply that by 2. So 12 x 2 is 24! Then Mike has 3 times as many of yellow marbles, so you do 24 x 3, which is 72! So the answer is A, Sandy is correct. Hope this helps! :)

3 0

3 years ago

Read 2 more answers