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Goryan [66]
3 years ago
14

Which of the following is a degenerate circle?

Mathematics
1 answer:
Fiesta28 [93]3 years ago
8 0
C. X2+y2=1 and there is your answer thins could be wrong and I am sorry if it is have a great day!
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Original price: 60 markup:15% what is retail price
sdas [7]
60x1.15=69
Retail price is $69
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3 years ago
PLEASE HELP I WILL REWARD WITH BRAINLIEST !!
solniwko [45]

Answer:

A. 24 units

Step-by-step explanation:

4 0
3 years ago
Help meh please <br><br> -2/3 ÷ (-15)
pogonyaev
The answer is 0.04444... or 2/45. Whichever is more useful to you.
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3 years ago
Read 2 more answers
there are n counters in a bag. 4 of the counters are red and the rest are blue. Ross takes a counter from the bag at random and
Ainat [17]

Answer: n = 10.

Step-by-step explanation:

In the bag, we have n counters.

4 of the counters are red.

the rest are blue, then we have:

(n - 4) blue counters.

Now, the probability that Ross takes a blue counter from the bag is equal to the quotient between the number of blue counters (n - 4) and the total number of counters, n

Then the probability is:

p1 = (n - 4)/n

Now he draws another, and it must be blue again, then we can calculate the probability in the same way as above, but he already take a blue counter, so the number of blue counters is (n - 5) and the total number of counters is (n - 1)

The probability of this event is:

p2 = (n - 5)/(n - 1)

The joint probability (the probability that Ross takes two blue counters) is equal to the product of the individual probabilities, and we know that this is equal to 1/3, then we have the equation:

1/3 = ( (n - 4)/n)*((n - 5)/(n - 1))

Now let's solve this for n.

n*(n - 1)/3 = (n - 4)*(n - 5)

(n^2 - n)/3 = n^2 - 4*n - 5*n + 20

n^2 - n = 3*(n^2 - 9*n + 20)

n^2 - n = 3*n^2 - 27*n + 60

0 = (3*n^2 - n^2) - 27*n + n + 60

0 = 2*n^2 - 26*n + 60

The two solutions of this equation can be found with Bhaskara's equation:

n = \frac{-(-26) +- \sqrt{(-26)^2 - 4*2*60} }{2*2} = \frac{26+- 14}{4}

Then the two solutions are:

n = (26 - 14)/4 = 3

This is not an option, because we know for sure that we have 4 red counters, then this option can be discarded.

The other solution is:

n = (26 + 14)/4 = 40/4 = 10

Then we have n = 10, 10 counters in total.

4 0
3 years ago
How to solve the area of a triangle
drek231 [11]
<h2>The area A of a triangle is given by the formula A=1/2*b*h where b is the base and h is the height of the triangle.</h2>

Step-by-step explanation:

<h2>The photo which is in the attachment is an example for your question. </h2>

<h2>hope this answer helps you!!</h2>

7 0
3 years ago
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