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4 years ago

When using fraction strips how do you know that to fractions are equivalent

1 answer:

3 0

You basically would use how long they are. If you had a strip of 1/2 and a strip of 3/4... with blocks they wouldn't be the same length. The 3/4 blocks would be greater.

However if you matched a 1/2 strip with a 3/6 strip, you can see that they are the same length and are equivalent.

Of course their is a way to do it mathematically but let me know if you want to see that.

You might be interested in

Simplify (2^5/3^2)^4

BabaBlast [244]

Answer:

first one on top.

Step-by-step explanation:

3 0

3 years ago

PLEASE!!!!!!!The adjoining figure shows two circles with the same center. The

Nookie1986 [14]

<h3>Answer:</h3>

$\boxed{\boxed{\pink{\sf \leadsto Hence \ the \ area \ of \ shaded \ region \ is 264 cm^2}}}$

<h3>Step-by-step explanation:</h3>

Here , two circles are given which are concentric. The radius of larger circle is 10cm and that of smaller circle is 4cm . And we need to find thelarea of shaded region.

From the figure it's clear that the area of shaded region will be the difference of areas of two circles.

Let the,

Radius of smaller circle be r .
Radius of smaller circle be r .
Area of shaded region be $\bf Area_{shaded}$

$\bf \implies Area_{Shaded}= Area_{bigger}-Area_{smaller} \\\\\bf\implies Area_{Shaded} = \pi R^2 - \pi r^2 \\\\\bf\implies Area_{shaded} = \pi ( R^2-r^2) \\\\\bf\implies Area_{shaded} = \pi [ (10cm)^2 - (4cm)^2] \\\\\bf\implies Area_{shaded} = \pi [ 100cm^2-16cm^2] \\\\\bf\implies Area_{shaded} = \pi \times 84cm^2 \\\\\bf\implies Area_{shaded} = \dfrac{22}{7}\times 84cm^2 \\\\\bf\implies \boxed{\red{\bf Area_{shaded} = 264 cm^2 }}$

<h3>Hence the area of the shaded region is 264 cm².</h3>

5 0

3 years ago

1. Yousaf deposits $5000 in a savings account at his local bank. The account pays 5.5 % interest compounded annually. At the end

irina [24]

Answer:

I think its $6894.21

Step-by-step explanation:

compound interest formula: A= P(1+ r/n)^nt

A= 5000(1+ 0.055/1)^1(6)

A= 6894.21403

A= $6894.21

4 0

4 years ago

Describe the different type of polygons

gladu [14]

Convex Polygons

All of its angles are less than 180°.

All of the diagonals are internal.

Concave Polygons

At least one angle measures more than 180°.
At least one of the diagonals is outside the shape of the polygon.

Equilateral Polygons

All sides are equal.

Equiangular Polygons

All angles are equal.

Regular Polygons

They have equal angles and sides

Irregular Polygons

They do not have equal angles and sides.

Types of Polygons based on Number of Sides

Triangle

3 sides.

Quadrilateral

4 sides.

Pentagon

5 sides.

Hexagon

6 sides.

Heptagon

7 sides.

Octagon

8 sides.

Enneagon or Nonagon

9 sides.

Decagon

10 sides.

Hendecagon

11 sides.

Dodecagon

12 sides.

Tridecagon or triskaidecagon

13 sides.

Tetradecagon or tetrakaidecago

14 sides.

Pendedecagon

15 sides.

Hexdecagon

16 sides.

Heptdecagon

17 sides.

Octdecagon

18 sides.

Enneadecagon

19 sides.

Icosagon

20 sides.

3 0

3 years ago

For the following set of data, find the number of data within 1 population standard deviation of the mean. Data Frequency 15 1 1

RUDIKE [14]

The mean age of the frequency distribution for the ages of the residents of a town is 43 years.
Step-by-step explanation:
We are given with the following frequency distribution below;

6 0

3 years ago