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3 years ago

Using the given information write the equation of parabolas:

Mathematics

1 answer:

lana [24]3 years ago

8 0

The general form of the equation we need to find is (x - h)^2 = 4p(y- k).

The center is the distance between the directrix and focus.

So, center (h, k) = (3, 3/2) .

P = distance from center to the focus and it just so happens to be 1.5.

We now plug everything into the formula given above.

(x - 3)^2 = 4(1.5)(y - 3/2)

(x - 3)^2 = 6(y - 3/2)

Done!

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3 years ago

Write a quadratic equation in standard form.

Naya [18.7K]

Answer:

1. x^2 +2x -24 = 0

2. x^2 -7x +10 = 0

Step-by-step explanation:

If you look at the factored and expanded forms of a quadratic with solutions p and q, you see ...

(x -p)(x -q) = x^2 -(p+q) +pq

The x-term coefficient is the opposite of the sum of solutions.

The constant is the product of solutions.

This knowledge lets you write down the standard form equation with no particular effort.

1. x^2 +2x -24 = 0

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5 0

2 years ago

Find the perimeter of the shape shown below.

sukhopar [10]

perimeter = turn of the figure

P = 6 + 3 + 4 + 4 + 3 + 6 + 3 + 4 + 3 = 36

the triangle has 2 équal sides => isosceles

and 1 angle is 60° so the triangle is equilateral

7 0

2 years ago

Plzzz Answer this as soon as possible!!!!

yaroslaw [1]

21.50+0.25r =22.25.

4 0

3 years ago

Solve CORRECTLY for brainly and 20 points

Wewaii [24]

Answer:

k/4 + 3 = 14

k = 44

Step-by-step explanation:

Step 1: k + 12 = 56

Step 2: k = 56 - 12

Step 3: k = 44

Multiply both sides of the equation by 4
Subtract from both sides
Subtract 12 from 56 to get 44

7 0

3 years ago

Read 2 more answers