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cupoosta [38]
3 years ago
7

Explain how a bar model can be used to show a subtraction problem.

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
8 0
You can calculate the difference between the bars by counting the lines inbetween. 
Ostrovityanka [42]3 years ago
5 0
Because it can show you a larger quantity and a smaller quantity
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Find the area A of polygon CDEFGH with the given vertices. C(0,5), D(2,5), E(2,3), F(3,2), G(-1,2), H(0,3)
enot [183]

Answer:

<em>The area of the polygon CDEFGH is 7</em>

Step-by-step explanation:

<u>Area of a Polygon</u>

The area of a polygon is generally calculated as the sum of the smaller areas that form its full shape, give each partial area has a known shape, like a square, rectangle, triangle, circle, etc.

The six points given in the question are plotted in the image below. They form a polygon whose area can be divided into two smaller shapes:

The area CDHE is a square of length side 2. Area of a square:

A1=L^2

The area HEFG is a trapezoid with bases lengths 4 and 2,  and height 1. Area of a trapezoid:

\displaystyle A2=\frac{b1+b2}{2}h

Calculate both areas:

A1=2^2=4

\displaystyle A2=\frac{2+4}{2}\cdot 1=3

Total Area=4+3=7

The area of the polygon CDEFGH is 7

8 0
3 years ago
Audrey had $20 and brought him for $1.10, a soda for $.99, and a bag of chips for $3.98. how much money does she have left
topjm [15]
 The correct answwere is that he  has $14.13 left 
3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7B8%7D%5E%7B2%7D%20%20%3D%2030%20%5Ctimes%2043x" id="TexFormula1" title=" {8}^{2} = 30 \t
Anarel [89]

Answer:

Step-by-step explanation:

8² = 30 * 43x

x = 8² / 30 * 43 = 8* 8 / 30*43

 = 2*2*2 * 2*2*2 / 3*2*5*43

=2*2*2*2*2/ 3*5*43

= 32/645

5 0
3 years ago
Y-intercept: (0, -1) Point: (5, 3) solve for y=mx+b<br> Help
Arturiano [62]

Answer:

y= 4x/5 - 1

Step-by-step explanation:

slope , m=\frac{-1-3}{0-5} = -4/-5= 4/5

y= mx + b , let's take (5,3)

then 3= 4(5)/5 + b , b= 3-4 = -1

so y= 4x/5 - 1

8 0
3 years ago
The sum of two numbers is 59 and the difference is 5 what are the numbers
svlad2 [7]

Answer:

32 and 27

Step-by-step explanation:

59 - 5 = 54

54 ÷ 2 = 27( smallest no. )

27 + 5 = 32( largest no. )

3 0
3 years ago
Read 2 more answers
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