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musickatia [10]
2 years ago
12

Help me please I need it

Mathematics
1 answer:
Allushta [10]2 years ago
6 0

Answer:

(6,4)

Step-by-step explanation:

18/12 (simplify)

3/2

3/2 x 2/2 = 6/4 = (6,4)

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A computer company makes a rectangular screen with a diagonal of 20 inches. The width of the screen is 4 inches less than its le
LenaWriter [7]

<span>  x^2 +(x-4)^2 =20^2</span>

<span>  x^2 +(x-4)^2 =400</span>

x^2 +(x-4)^2 -400=0

factor:

2x^2-8x-384=0

Factor the 2 out of 2X^2

2(x-16) (x+12) =0

<span> Divide both sides by 2</span>

(x-16) (x+12) =0

X=16 , x=-12

<span> Number cannot be negative so x=16</span>


5 0
3 years ago
Read 2 more answers
I am doing a math project for Geometry. I am using Singapore Flyer as example for a circle. This is the information I know so fa
My name is Ann [436]

Answer:

Yea its correct! good job yea there are not any mistakes

Step-by-step explanation:

8 0
3 years ago
Write the equation of a parabola with focus at (1,-4) and a directrix at X=2
konstantin123 [22]

Answer:

The equation of a parabola is

x =  \frac{1}{4(f - h)} (y - k) ^{2}  + h

Step-by-step explanation:

(h,k) is the vertex and (f,k) is the focus.

Thus, f = 1, k = −4.

The distance from the focus to the vertex is equal to the distance from the vertex to the directrix: f - h = h - 2.

Solving the system, we get h = 3/2, k = -4, f = 1.

The standard form is:

x =  -  \frac{y ^{2} }{2}  - 4y -  \frac{13}{2}

The general form is:

2x +  {y}^{2}  + 8y + 13 = 0

The vertex form is:

x =  -  \frac{(y + 4) ^{2} }{2}  +  \frac{3}{2}

The axis of symmetry is the line perpendicular to the directrix that passes through the vertex and the focus: y = -4.

The focal length is the distance between the focus and the vertex: 1/2.

The focal parameter is the distance between the focus and the directrix: 1.

The latus rectum is parallel to the directrix and passes through the focus: x = 1.

The length of the latus rectum is four times the distance between the vertex and the focus: 2.

The eccentricity of a parabola is always 1.

The x-intercepts can be found by setting y = 0 in the equation and solving for x.

x-intercept:

( -  \frac{13}{2}  \: ,0)

The y-intercepts can be found by setting x = 0 in the equation and solving for y.

y-intercepts:

(0, - 4 -  \sqrt{3)}

(0, - 4 +  \sqrt{3)}

3 0
2 years ago
PLEASE HELP PLEASE PLEASE PLEASE
sleet_krkn [62]

Answer:

oh no that's tough bro

hope you get through

8 0
2 years ago
Solve the equation.<br> y +3=y+9
scoray [572]

Answer:

No solution

Step-by-step explanation:

=> y+3 = y+9

<u><em>Subtracting both sides by y</em></u>

=> y+3-y = y+9-y

=> 3 ≠ 9

So, This equation has no solution.

8 0
3 years ago
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