Help! math problem ?????

How do I turn 2/5 yards into feet? Show with tape diagram.

Svetradugi [14.3K]

Answer:

1 1/5 feet

Step-by-step explanation:

1 yard is 3 feet

2/5*3=6/5=1 1/5

TAAAPE

6 0

3 years ago

I need help im going to post later a 3 more times 10 points

SashulF [63]

Answer:

X=9 Y= 3

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Increased movement of the particles in a solid comes from increased ________.

Andrej [43]

Here's what I found !

<h2>"With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion. In a solid, the particles pack together as tightly as possible in a neat and ordered arrangement."</h2>

<h3><em>I hope this helps. :)</em></h3>

3 0

3 years ago

Drag and drop formal proof. Prove the Polygon Exterior Angle Sum Theorem for the enclosed triangle, that is ∠1+∠2+∠3=360°

jasenka [17]

Answer:

The sum of all the external angles of a triangle is 360°.

Step-by-step explanation:

Let there are n sides in a polygon.

So, there are n internal angles in the polygon, let ∠i1, ∠i2, ∠i3, ..., ∠in are the measure of n internal angles of the polygon.

The measure of external angle corresponding to ∠i1, ∠1= 180°-∠i1,

The measure of external angle corresponding to ∠i2, ∠2 = 180°-∠i2,

Similarly, the measure of external angle corresponding to ∠in, ∠n = 180°-∠in.

Now, the sum of all the external angles of the polygon,

(∠1+∠2+...+∠n)=(180°-∠i1)+(180°-∠i2)+...+(180°-∠in)

=(180°+180°+...n times)-(∠i1+∠i2+...+∠in)

=n x 180° - (∠i1+∠i2+...+∠in)

As ∠i1+∠i2+...+∠in is the sum of all the internal angles of the polygon.

So, the sum of all the external angles of the polygon =

(n x 180°) - (sum of all the internal angles of the polygon).

In the case of a triangle, n=3 and the sum of all the three internal angles, ∠i1+∠i2+∠i3 = 180°.

Therefore, the sum of all the external angles of a triangle,

∠1+∠2+∠3 =3x180°-(∠i1+∠i2+∠i3)

=540°=180°

=360°.

Hence, the sum of all the external angles of a triangle is 360°.

5 0

3 years ago

To the nearest tenth, what is the distance between the points (1, –2, 5) and (0, 7, –4)?

In-s [12.5K]

Answer:

$\boxed{12.8}\\$

Step-by-step explanation:

The coordinates of your points, (1, –2, 5) and (0, 7, –4), are 3D (x, y, z) coordinates. They represent the diagonal of a rectangular prism.

The length of the sides are

x₂ - x₁ = |0 – 1| = 1

y₂ - y₁ = |7 – (-2)| = 9

z₂ - z₁ = |-4 – 5| = 9

The prism has the dimensions 9 × 9 × 1 as shown in the diagram.

We can use the Pythagorean theorem to calculate the length of the diagonal, d

Look first at the red diagonal on the base of the prism.

x² = 9² + 9² = 81 + 81 = 162

Now, look at the main diagonal.

d² = x² + h² = 162 + 1² = 162 + 1 = 163

d = √163 =12.8

$\boxed{ \textbf{The distance between the two points is 12.8.}}\\$

5 0

3 years ago