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slavikrds [6]
3 years ago
11

A regular decagon has a radius of 8 cm.

Mathematics
2 answers:
svp [43]3 years ago
8 0

Answer: 188 cm² I think that's it

Step-by-step explanation:

nadezda [96]3 years ago
6 0

Answer:

188cm^2

Step-by-step explanation:

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The pattern for a scarf is shown<br> at right what is the area of this car for use 3.14
Tems11 [23]

Answer:

area of circle=pi times radius^2

diameter/2=radius

area of rectangle=length times width

rectanlge-circle=scarf

rectanlge=28 by 15=28*15=420

circle, diameter is 15 so radius is 15/2=7.5

area=pi7.5^2=pi56.25=3.14*56.25=176.625

so

rectangle-circle=420-176.625=243.375 square inches

the area of the scarf is 243.375 square inches

Step-by-step explanation:

7 0
3 years ago
The sum of two numbers is 22 their difference is 4
ipn [44]

Answer:

x=13

Step-by-step explanation:

ok so let x+y=22

--------------------------------------------------------

x and y are the 2 unkown Number

-------------------------------------------

x-y=4

their difference is 4

----------------------------------

add both equations

(x+y=22)

+(x-y=4)

------------------------------

y's cancel out

-----------------------

2x=26

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x=13

3 0
3 years ago
Read 2 more answers
Please help I need an equation for this graph
Misha Larkins [42]
Y=1/2x

There is no y-intercept
6 0
3 years ago
The final value of a painting after its initial value, m, increases by 2/5
Sindrei [870]

Answer: 7/5m

Step-by-step explanation:

The initial value of the painting = m

Increase in the painting = 2/5

The final value of the painting will be the addition of the initial value of the painting and the increase. This will be:

= m + (2/5 × m)

= m + 2/5m

= 5/5m + 2/5m

= 7/5m

3 0
3 years ago
Use standard notation to write this number. 4.045x10^-3
Inessa05 [86]
<span>4.045 x10^-3 in standard notation = 4,045</span>
5 0
3 years ago
Read 2 more answers
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