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icang [17]
4 years ago
6

Is15 a composite or a prime number

Mathematics
2 answers:
Orlov [11]4 years ago
8 0
It is a prime number.
Over [174]4 years ago
5 0
Composite because its negative 
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The center of a hyperbola is located at the origin. One focus is located at (−50, 0) and its associated directrix is represented
leva [86]

The equation of the hyperbola is : \frac{x^{2}}{48^2}  - \frac{y^{2}}{14^2}  = 1

The center of a hyperbola is located at the origin that means at (0, 0) and one of the focus is at (-50, 0)

As both center and the focus are lying on the x-axis, so the hyperbola is a horizontal hyperbola and the standard equation of horizontal hyperbola when center is at origin: \frac{x^{2}}{a^{2}}  - \frac{y^{2}}{b^{2}}    = 1

The distance from center to focus is 'c' and here focus is at (-50,0)

So, c= 50

Now if the distance from center to the directrix line is 'd', then

d= \frac{a^{2}}{c}

Here the directrix line is given as : x= 2304/50

Thus, \frac{a^{2}}{c}  = \frac{2304}{50}

⇒ \frac{a^{2}}{50}  = \frac{2304}{50}

⇒ a² = 2304

⇒ a = √2304 = 48

For hyperbola, b² = c² - a²

⇒ b² = 50² - 48² (By plugging c=50 and a = 48)

⇒ b² = 2500 - 2304

⇒ b² = 196

⇒ b = √196 = 14

So, the equation of the hyperbola is : \frac{x^{2}}{48^2}  - \frac{y^{2}}{14^2}  = 1

5 0
3 years ago
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What is the volume of the sphere below?
lbvjy [14]

Answer:

Option C

Step-by-step explanation:

sorry if I'm wrong..

4 0
3 years ago
A bear weighs 6435 grams. How much does the bear weigh in kilograms
KiRa [710]

Answer:

6.435

Step-by-step explanation:

To convert from grams to kilograms, you divide the grams by 1000.

So 6435 divided by 1000 is 6.435

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3 years ago
Which expression represents how many points each worksheet is worth?
photoshop1234 [79]

Answer:

105 divided by 7

Step-by-step explanation:

to find out you need to divide

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3 years ago
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18. There are 56 fish in a tank, and each fish is yellow, blue, or black. There are six more yellow fish than blue fish, and fou
Alex73 [517]

Answer:

There are 24 yellow fish

Step-by-step explanation:

Blue: x

Yellow: x + 6

Black: x - 4

x + (x + 6) + (x - 4) = 56

3x + 2 = 56

3x = 54

x = 18

7 0
3 years ago
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