Find the y value for point F such that DF and EF form a 1:3 ratio. E(2,4) D(-3,-3)

Mathematics

2 answers:

Mice21 [21]3 years ago

8 0

I drew the segment and used Pythagorean theorem to solve for its measure. The line formed is the hypotenuse of the imaginary right triangle.

Among the choices only -1.33 and -1.25 is a feasible choice. But I am leaning towards -1.25 as the y-value of point F based on my diagram. Please see attachment

irinina [24]3 years ago

3 0

The exact answer is -1.25

You might be interested in

What is 1/10th of 0.08?

erastovalidia [21]

It is 0.008. Thanks (:

3 0

3 years ago

Read 2 more answers

Fay has a lemonade stand.

oee [108]

Answer:

£65

Step-by-step explanation:

8 0

2 years ago

How does the concept of inequality help you describe situations?

kati45 [8]

Try using the back of the book.

3 0

3 years ago

Will mark brainliest! Questions are in the picture!

alexdok [17]

Answer:

52.9 inches .

Step-by-step explanation:

Given that the triangular indentation has an area of 100 in.² and the base and height of this traingle are represented by expressions 3x and x+3 respectively . We need to find out the perimeter to the nearest tenth.

As we know that the area of triangle is ,

$\rm\longrightarrow Area_{\triangle}=\dfrac{1}{2}(base)(height)$

Substituting the respective values,

$\rm\longrightarrow 100\ =\dfrac{1}{2}(x+3)(3x)\\\\\rm\longrightarrow 2(100) = 3x(x+3)\\\\\rm\longrightarrow200 = 3x^2+9x\\\\\rm\longrightarrow 3x^2+9x-200=0$

On using the Quadratic formula , we have;

$\rm\longrightarrow x =\dfrac{-9\pm\sqrt{9^2-4(3)(-200)}}{2(3)} \\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{81+1200}}{6}\\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{1281}}{6}$