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3 years ago

Can someone help me on number 8. I tried to do it, but I can’t seem to find the right answer.

Mathematics

1 answer:

qaws [65]3 years ago

4 0

Check the picture below.

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The perimeter of a parallelogram is 60 meters. The width (W) of the parallelogram is 2 meters less than its length (L). Find the

PSYCHO15rus [73]

120 because 60 times two is 120 and six times two is twelve

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3 years ago

What is the answers and how do u get those answers

Arada [10]

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3 years ago

$47 tie; 4.5% markup

Nuetrik [128]

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3 years ago

What is the equation of the parabola in vertex form with vertex (2,-4) and directrix y=-6

Pachacha [2.7K]

Answer:

$y=\dfrac{1}{8}(x-2)^2-4$

Step-by-step explanation:

The directrix y=-6 is parallel to the x axes, so parabola has equation of the form

$(x-x_0)^2=2px(y-y_0),$

where $(x_0,y_0)$ is the vertex of parabola and p is parabola's parameter.

By the definition, $\frac{p}{2}$ is the distance from the vertex to the directrix, so

$\dfrac{p}{2}=2\Rightarrow p=4$

Hence, the equation of parabola is

$(x-2)^2=8(y+4)$

See attached diagram for the graph of parabola and its directrix.

In vertex form this equation is

$y=\dfrac{1}{8}(x-2)^2-4$

8 0

3 years ago

Solve for x: (x+4) = 7.(1 point) 2 Ox=3 Ox=5 Ox=6 O x = 10

MArishka [77]

Answer:

Step-by-step explanation:

So we have the equation:

$x+4=7$

To solve for x, subtract 4 from both sides:

$(x+4)-4=(7)-4$

The left side cancels. Subtract on the right:

$x=3$

So, the value of x is 3.

And our answer is A.

And we're done!

5 0

3 years ago