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Mathematics

1 answer:

lubasha [3.4K]2 years ago

8 0

id go with line T if it was me

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What equals 2 times but adds up to -4

velikii [3]

Answer:

2×-2 maybe but it's a difference with interfere so ues

5 0

2 years ago

In circle o below, what is the measure of angle x, the angle formed by a tangent and the

anygoal [31]

$\sf\large\underline\purple{Answer:-}$

The measure of the angle x = 90°

$\sf\large\underline\blue{Reason:-}$

Theorem Of Tangent:-

$\rightarrow$ A radius is obtained by joining the centre and the point of tangency. The tangent at a point on a circle is at right angles to this radius.

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Hope it helps you:)

Have a nice day..

7 0

1 year ago

Read 2 more answers

A parabola is given by the equation y = x2 + 4x + 4.

notsponge [240]

Answer:

the vertex of the parabola is:(-2,0)

the focus of the parabola is:(-2, $\frac{1}{4}$ )

the directrix of the parabola is:y= $\frac{-1}{4}$

Step-by-step explanation:

we know that for any general equation of the parabola of the type $y=ax^{2} +b x+c$ the vertex of the parabola is given by (h,k)

where $h=\frac{-b}{2 a}$ and $k=\frac{4 a c-b^{2} }{4a}$

therefore by the given data we have h=-2 and k=0

hence vertex=(-2,0)

the general equation of the parabola of the type $4 a (y-h)=(x-k)^2$ ; the parabola symmetric around the y-axis has the focus from the centre i.e. the vertex (h,k) at a distance a as (h,k+a) and the directrix is given by y=k-a