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2 years ago

12

How do I find x here?

1 answer:

sdas [7]2 years ago

4 0

When lines cross each other in a triangle from a point to the mid point of the opposite side as shown, AV is 2 times as long as VF

To solve for X we would have AV = 2*VF

The equation becomes:

3x+6 = 2(x+6)

Now we solve for X

3x+6 = 2(x+6)

Distribute the 2 on the right side:

3x + 6 = 2x +12

Subtract 2x from each side:

X +6 = 12

Subtract 6 from each side:

x = 6

Now if you needed to solve the length of AV or VF, you replace x with 6 and solve.

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Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP

hichkok12 [17]

Answer:

$f(x)=\frac{3}{5}(x+1)^2+4$

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

$f(x)=a(x-h)^2+k$

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

$f(x)=a(x+1)^2+4$

The parabola also passes through (4,19) hence it must satisfy its equation.

$19=a(4+1)^2+4$

$19-4=a(5)^2$

$15=25a$

We divide both sides by 25 to get:

$a=\frac{15}{25}= \frac{3}{5}$

Hence the quadratic function is:

$f(x)=\frac{3}{5}(x+1)^2+4$

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2 years ago

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alexdok [17]

Answer:

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Step-by-step explanation

<em>cube has equal sides and is parallel.</em>

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2 years ago

What is -2.6c - 2.8c equal??

Zina [86]

Answer:

-5.4c

Step-by-step explanation:

We're combining two "like" terms here.

It may make the problem easier to visualize if we write one of these terms over the other, as follows:

-2.6c

- 2.8c

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Adding, we get:

-2.6c

- 2.8c

----------

- 5.4c (answer)

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