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3 years ago

Any help please if you can ig?

Mathematics

1 answer:

erastova [34]3 years ago

4 0

Answer:

56756

Step-by-step explanation:

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= 3x + 4, what is y when x is 1, 2, and 3

Sidana [21]

Answer:

when x is 1 y is 7

when x is 2 y is 10

when x is 3 y is 13

Step-by-step explanation:

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3 years ago

Match the steps to find the equation of the parabola with focus (-1, 2) and directrix x = 5.

Archy [21]

Answer:

The matched options to the given problem is below:

Step1: Choose a point on the parabola

Step2: Find the distance from the focus to the point on the parabola.

Step3: Use (x, y).

Find the distance from the point on the parabola to the directrix.

Step4: Set the distance from focus to the point equal to the distance from directrix to the point.

Step5: Square both sides and simplify.

Step6: Write the equation of the parabola.

Step by step Explanation:

Given that the focus (-1,2) and directrix x=5

To find the equation of the parabola:

By using focus directrix property of parabola

Let S be a point and d be line

focus (-1,2) and directrix x=5 respectively

If P is any point on the parabola then p is equidistants from S and d

Focus S=(-1,2), d:x-5=0

Step1: Let P(x,y) be any point on parabola

Step2: Therefore the $d=\sqrt{(x+1)^2+(y-2)^2}\hfill (1)$

Step3: The perpendicular distance from p to d is

$\frac{|x-5|}{\sqrt{(-1)^2+2^2}}$

$=\frac{|x-5|}{\sqrt{5}}\hfill (2)$

Step4: equating (1) and (2)

$\sqrt{(x+1)^2+(y-2)^2}=\frac{|x-5|}{\sqrt{5}}$

Step5: squaring on both sides

$(x+1)^2+(y-2)^2=\frac{|x-5|^2}{5}$

$5[(x+1)^2+(y-2)^2]=(x-5)^2$

$5[x^2+2x+1+y^2-2y+4-x^2+10x-25]=0$

$12x+y^2-2y-24=0$

Step6: Equation of the parabola is

$y^2-2y+12x-24=0$

8 0

3 years ago

What is the minimum number of degrees that a regular hexagon can be rotated before it carries onto itself?

-Dominant- [34]

The minimum number of degrees that a regular hexagon can be rotated before it carries onto itself is 60 degrees (D).

5 0

3 years ago

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Joseph has $60 in a savings account. Each week he deposits $12 in the account.

Aleonysh [2.5K]

Answer:

12x +60

Step-by-step explanation:

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2 years ago

The scale for a model house is 1:12

guapka [62]

Answer:

here's what I got from wikipedia (i dont like taking of other's brain skills :/ )

Step-by-step explanation:

<em>1:12 scale is a traditional scale (ratio) for models and miniatures, in which 12 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called one-inch scale (since 1 inch equals 1 foot)</em>

<em>hope this helps you :)</em>

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3 years ago

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