3 years ago

If a line goes through Point (1,2) and has a slope of 2 then find R if the line also goes through the point (r,8)

1 answer:

7 0

Answer: r = 4

Step-by-step explanation:

See the image.

You might be interested in

juin [17]

Answer:

40 cm^2

Step-by-step explanation:

5 0

3 years ago

emmasim [6.3K]

The possibility is 6 out of 42

3 0

3 years ago

marysya [2.9K]

I believe the error she made was adding it or multipulcation

8 0

3 years ago

scZoUnD [109]

Y/x=k 48/8=6=k k is the constant y/4=6 y=24

3 0

3 years ago

trapecia [35]

Answer:

Area $=62.5\sqrt{6}$ square units

$AB=5\sqrt{15}$ units

$BC=5\sqrt{10}$ units

Step-by-step explanation:

In a right triangle the altitude drawn to the hypotenuse is the geometric mean of the segments at which this altitude divides the hypotenuse.

So,

$BD^2=15\cdot 10\\ \\BD^2=150\\ \\BD=\sqrt{150}=5\sqrt{6}\ units$

a. The area of the triangle ABC is

$A_{ABC}=\dfrac{1}{2}\cdot BD\cdot AC=\dfrac{1}{2}\cdot 5\sqrt{6}\cdot (15+10)=\dfrac{125\sqrt{6}}{2}=62.5\sqrt{6}\ un^2.$

b. The legs of the right triangle are geometric means of the segment adjacent to this leg and the hypotenuse, so

$AB^2=AD\cdot AC=15\cdot 25\Rightarrow AB=5\sqrt{15}\ units\\ \\BC^2=CD\cdot AC=10\cdot 25\Rightarrow BC=5\sqrt{10}\ units$

5 0

4 years ago