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3 years ago

Please help me! I need the answer pretty fast...

Mathematics

1 answer:

lukranit [14]3 years ago

6 0

Answer:

15 m

Step-by-step explanation:

you would use a sin equation because given the angle, the side you are resting to find is Opposite and the side you are given is the Hypotenuse

sin (32) = a/28

28 x sin (32) = a

14.83 = a

15 m = a when rounded

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Write an equation of the parabola that opens up whose vertex (−1, 2) is 3 units from the focus. (Vertex form or Parabola Form is

TEA [102]

Answer:

y2 = 4ax (opens right, a > 0)

y2 = -4ax (opens right, a > 0)

x2 = 4ay (opens up, a > 0)

x2 = -4ay (opens down, a > 0)

Vertex at (h, k) :

(y - k)2 = 4a(x - h) (opens right, a > 0)

(y - k)2 = -4a(x - h) (opens right, a > 0)

(x - h)2 = 4a(y - k) (opens up, a > 0)

(x - h)2 = -4a(y - k) (opens down, a > 0)

Equation of a Parabola in Vertex form

Vertex at Origin :

y = ax2 (opens up, a > 0)

y = -ax2 (opens down, a > 0)

x = ay2 (opens right, a > 0)

x = -ay2 (opens left, a > 0)

Vertex at (h, k) :

y = a(x - h)2 + k (opens up, a > 0)

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y = -a(y - k)2 + h (opens left, a > 0)

Step-by-step explanation:

7 0

3 years ago

Find the product of x^2+2x-4 and 3x.

vladimir1956 [14]

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$3x \times {x}^{2} = {3x}^{3}$

$3x \times 2x = 6 {x}^{2}$

$3x \times - 4 = - 12x$

$b. \: 3 {x}^{3} + 6 {x}^{2} - 12x$

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3 years ago

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AnnyKZ [126]

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Step-by-step explanation:

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3 years ago

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Jlenok [28]

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Step-by-step explanation:

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AC = $\sqrt{25}$ = 5

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3 years ago

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Vlad1618 [11]

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