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viktelen [127]
3 years ago
5

The equation y²/8² - x²/b² represents a hyperbola centered at the origin with a focus of (0, -10).

Mathematics
2 answers:
cestrela7 [59]3 years ago
6 0

Answer:

b = 6

Step-by-step explanation:

You probably already know the general equation from the my last couple of answer.

In this question, we have:

a=8

b= ?

c= -10   ,   c is the value of the foci

surprisingly, you can solve the value for a, b, and c using the same equation as the Pythagorean theorem.

c² = a² + b²

we need to solve for b so lets rearrange the equation.

b² = c² - a²

b = ±√(c² - a²)

b = ±√((-10)² - (8)²)

b = ±√((-10)² - (8)²)

b = ±√(100 - 64)

b = ±√(36)

b = ±6

b = 6

blsea [12.9K]3 years ago
6 0

Answer: 6

Step-by-step explanation:

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Choose the linear inequality that describes the graph. The gray area represents the shaded region
Vesnalui [34]
(0,3)(1,-2)
slope = (-2-3) / (1 - 0) = -5

y int is (0,3)

line is dashed, means no equal sign....shading above the line, means greater then

ur inequality is : y > -5x + 3


6 0
3 years ago
Read 2 more answers
High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb leve
ale4655 [162]

Answer:

A) 10.38hours

B) 617.95 is the concerntration of CO

Step-by-step explanation:

A) when x=600

T= 0.0002x^2 - 0.316x + 127.9

T= 0.0002(600)^2 -0.316(600) + 127.9

T= 10.38secs

B) to find the concerntration, use Almighty formular

X=-b+-sqrt(b^2-4ac)/2a

0.0002x^2-0.316x-127.9=9

0.0002x^2 - 0.316x + 118.9=0

X= 0.316 +- sqrt(0.316^2) -4(0.0002×118.9)/(2×0.0002)

X= 0.316+(0.68817/0.0004)=962.05 or

X=-0.316 -0.68817/0.0004 =617.95

Therefore X is within the domain of 617.95 is the concerntration

5 0
3 years ago
3/4=3/8x-3/2 what is the answer for this?
Nonamiya [84]
The answer is x=6 ;)
3 0
3 years ago
Y'all don't make fun of me or anything my brains not working but this is a real question a triangle is 3 sides and a square has
Xelga [282]

Answer:

Lol, you're correct no worries!

Step-by-step explanation:

Yes a triangle has 3 sides and a square has 4 sides :)

3 0
3 years ago
the price of a taxi ride in phoenix includes an initial fee of $2.75 plus $2.20 per mile. write an equation to show the total pr
ki77a [65]
The format is y = mx + b
where y would be your C
x would be your M
m would be the price per mile (2.20)
and b would be your initial fee (2.75)

put this together in that format and we get
C = 2.20M + 2.75
4 0
3 years ago
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