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Elina [12.6K]
3 years ago
12

What is the focus of a parabola with equation y^2=4x

Mathematics
2 answers:
givi [52]3 years ago
5 0
Vertex: <span><span>(0,0)</span><span>(0,0)</span></span>Focus: <span><span>(1,0)</span><span>(1,0)</span></span>Axis of Symmetry: <span><span>y=0</span><span>y=0</span></span>Directrix: <span>x=−<span>1</span></span>
dem82 [27]3 years ago
3 0

Answer:

Focus = (1,0)

Step-by-step explanation:

The equation of parabola with vertex at origin is given by:

y^2 = 4ax           ....[1]

where, 4a is the width of the parabola and a is positive.

Focus = (a, 0)

Given the equation:

y^2=4x on comparing with [1] we have;

4a = 4

Divide both sides by 4 we have;

a = 1

Focus = (1, 0)

Therefore, the focus of a parabola with equation is, (1, 0)

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Answer:

  The sine of the angle = the length of the opposite side. the length of the hypotenuse.

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Step-by-step explanation:

3 0
2 years ago
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Find the value of the function sin Find the value of the function sin 310 a. –0.766044443119 c. 0 b. 0.850887688656 d. 0.0032258
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Answer:

  b. 0.850887688656

Step-by-step explanation:

Unless the argument of the sine function is specified in degrees or some other angle unit (revolutions, grads, minutes, seconds), it must be assumed to be radians. Here, the argument 310 is not shown as 310°, so we must assume it is 310 radians.

  sin(310) ≈ 0.850887688656

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<em>Additional comment</em>

  sin(310°) ≈ –0.766044443119

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4 0
2 years ago
To find the sale price of an item you have to add the original price plus the discount amount
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Answer:

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Step-by-step explanation:

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U − -23<br> _______ = -8<br> -9 <br><br> Solve for u<br> Thanks!
Romashka [77]

Answer:

u=95

Step-by-step explanation:

To solve this problem we need to isolate 'u' variable using properties of equation.

Lets multiply by -9 the whole equation

u - -23=-8*9

Remember keys features of algebra:

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Lets now subtract 23 to both sides

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8 0
3 years ago
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