All categories

2 years ago

HELP. A triangle is dilated by a scale factor of 2 and the area of the original figure is x units.

Mathematics

1 answer:

7nadin3 [17]2 years ago

8 0

Answer:

4x.

Step-by-step explanation:

If the scale factor is 2 then the area factor is 2^2 = 4.

So the area of the new triangle is 4*x.

You might be interested in

An above-ground swimming pool in the shape of a cylinder has a diameter of 18 feet and a height of 4.5 feet.If the pool is fille

iragen [17]

Answer:

The volume of the water in the pool is 1,017 cubic feet

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

$V=\pi r^{2} h$

we have

$r=18/2=9\ ft$ ----> the radius is half the diameter

Remember that

$1\ ft=12\ in$

$6\ in=6/12=0.5\ ft$

To find out the height of the water, subtract 0.5 feet from the height of the swimming pool

$h=4.5-0.5=4\ ft$

assume

$\pi =3.14$

Find the volume of the water

$V=(3.14)(9^{2})(4)$

$V=1,017\ ft^3$

5 0

3 years ago

Give the equation of the circle centered at the origin and passing through the point , 0−9.

e-lub [12.9K]

Answer:

$x^2+y^2=81$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The radius of the circle is the distance between the center and any point on the circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have the points

(0,0) and (0,-9)

substitute in the formula

$r=\sqrt{-9-0)^{2}+(0-0)^{2}}$

$r=\sqrt{-9)^{2}+(0)^{2}}$

$r=9/ units$

step 2

Find the equation of the circle

The equation of the circle in center radius form is equal to

$(x-h)^2+(y-k)^2=r^2$

we have

$(h,k)=(0,0)\\r=9\ units$

substitute

$(x-0)^2+(y-0)^2=9^2$

$x^2+y^2=81$

3 0

3 years ago

PLS HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

scoray [572]

Answer:

Clam down jamal don't pull out the 9 X_X

Step-by-step explanation:

3 0

2 years ago

Please Help!!!!!!!!!!

Fantom [35]

B because first you do the two triangles which =3 then you get the area for the square in the middle which is 15 then you add them up to get 18

5 0

3 years ago

Read 2 more answers

Write as a multiplication sentence. 5/6 divided by 1 1/2

avanturin [10]

Write as a multiplication sentence.

5/6 divided by 1 1/2

Remember that

1 1/2=1+1/2=3/2

$\frac{5}{6}\colon\frac{3}{2}=\frac{5}{6}\cdot\frac{2}{3}$

7 0

10 months ago