What Is 2x4? First To Answer Gets BRAINLIEST!! 100 Points :))

Mathematics

1 answer:

malfutka [58]3 years ago

3 0

420

I hope I am right

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The point (5,4) lies on a circle. What is the length of the radius of

Flura [38]

Answer:

$\large\boxed{r=2\sqrt2}$

Step-by-step explanation:

The radius (r) length is equal to the distance between the center of the circle and the point on the circle.

The formula of a distance:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Substitute the coordinates of the given points (5, 4) and (3, 2):

$r=\sqrt{(3-5)^2+(2-4)^2}\\\\r=\sqrt{(-2)^2+(-2)^2}\\\\r=\sqrt{4+4}\\\\r=\sqrt{(4)(2)}\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\r=\sqrt4\cdot\sqrt2\\\\\boxed{r=2\sqrt2}$

8 0

3 years ago

The endpoints of jk are j(–25, 10) and k(5, –20). what is the y-coordinate of point l, which divides jk into a 7:3 ratio

Trava [24]

The correct answer for this question is this one: (-4, -11)
In order to solve this,

Let k1 = 7/10 = fraction of the first part
Let k2 = 3/10 = fraction of the second part

Then, use solve for x and y

x = (k1(x2) +k2(x1)) / (k1+k2)
y = (k1(y2) +k2(y1)) / (k1+k2)

x = (7/10 * 5 + 3/10 * -25) / (7/10 + 3/10 )
x = -8 / 2
x = -4

y = (7/10 * -25 + 3/10 * 10) / (7/10 + 3/10)
y = -14 + 3
y = -11

Hope this helps answer your question. Have a nice day!

4 0

4 years ago

Read 2 more answers

Simplify 3(x - 6) - 4(x + 3). A)-x - 30 B)-x - 9 C)-x - 6 D)-x - 30

morpeh [17]

Answer:

-x-30

Step-by-step explanation:

first you need to distribute:

3(x)+3(-6) -4(x)+ (-4)(3)

Then you multiply:

3x+(-18)-4x+(-7)