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Simora [160]
3 years ago
12

What is the defination of focus of a parabola on a coordinate grid

Mathematics
1 answer:
AleksAgata [21]3 years ago
4 0

Answer:

Focus of a Parabola. A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola and the line is called the directrix. The focus lies on the axis of symmetry of the parabola.

Step-by-step explanation:

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I need help with a CALC 1 question.
Morgarella [4.7K]
Yah

ok, so remember
x(dy/dx)=1
but
y(dy/dx)=dy/dx
solve for dy/dx as if it was a varaible
use chain rule and stuff


-33x¹⁰+2x²²y+y⁹=-30
take derivitive
-33(10)x⁹+2(22x²¹y+x²²dy/dx)+9y⁸dy/dx=0
distribute
-330x⁹+44x²¹y+2x²²dy/dx+9y⁸dy/dx=0
add 330x⁹ to both sides and minus 44x²¹y from both sides
2x²²dy/dx+9y⁸dy/dx=330x⁹-44x²¹y
undistribute dy/dx
dy/dx(2x²²+9y⁸)=330x⁹-44x²¹y
divide both sides by (2x²²+9y⁸)
\frac{dy}{dx}= \frac{330x^9-44x^{21}y}{2x^{22}+9y^8}
your calculation is incorrect, see it should be 2x^22, not x^22

anyway
taht is the slope at taht point
remember point slope
y-y1=m(x-x1)
we needs to find slope

at point (1,1)
x=1, y=1
\frac{dy}{dx}= \frac{330(1)^9-44(1)^{21}y}{2(1)^{22}+9(1)^8}
dy/dx=26

at point (1,1)
y-1=26(x-1)
y-1=26x-26
y=26x-25 is de equation
8 0
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Blababa [14]

The solution to a system of equations (0,1) is Option B

4 0
3 years ago
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The tangent ratio is the ratio of the side _____ the acute angle over the side ______ to the acute angle.
juin [17]
For this case what you have to take into account is the following trigonometric definition:
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 We have then:
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8 0
4 years ago
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Mariulka [41]

Answer:60

Step-by-step explanation:

3 0
3 years ago
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The diagram shows a right-angled triangle.
olga nikolaevna [1]

Answer:

h = 9.87 cm

Step-by-step explanation:

Given that,

Base, b = 8 cm

Height = h

Angle, \theta=51^{\circ}

We need to find the value of h. We can use trigonometry to find h.

\tan\theta=\dfrac{\text{Perpendicular}}{\text{Base}}\\\\\tan(51)=\dfrac{h}{8}\\\\h=\tan(51)\times 8\\\\h=9.87\ cm

So, the height of the triangle is 9.87 cm.

7 0
3 years ago
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