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stellarik [79]
3 years ago
7

the radius of a circular sign is 12 inches. equal parts of the sign are painted red and yellow. how many square inches are paint

ed each color
Mathematics
1 answer:
erma4kov [3.2K]3 years ago
3 0
Find the area of the circle: \pi r^{2} = 144pi
Since there are two colors and they are painted equally, divide that by two: 72pi
Or about 226.19 square inches
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Can u please answer all three and in 20-30 minutes please or quicker if u can please I just not understanding the math they are
Jlenok [28]

18).  16:80 is the ratio but in simplest form is; 5:0

19).   36:54 is the ratio but in simplest form is; 2:3

20).   12:24 is the ratio but in simplest form is; 1:2

hope that helps:D

5 0
3 years ago
Find solution of the equation 3sin^2x-7sinx+2=0
Goshia [24]
Simplife3^2 to 9
9x-7+2=0
9x-7+2to 9x-5
9x-5=0
add 5 to both sides 9x=5
Divide both sides by 9
x=5/9
7 0
3 years ago
Calculate and simplify:<br><br> 18/20 + 4/8 =
Vladimir [108]
Common denominator = 40

36/40 + 20/40 = 56/40

Reduce and simplify=

7/5, which is 1 and 2/5

Hope that helps
8 0
3 years ago
Read 2 more answers
What is 3x * -x yefowe
-BARSIC- [3]

Answer:

-3x^{2}

Step-by-step explanation:

-x= -1x. (The 1 is invisible)

Now lets do the 3*-1= -3

You still have both of the x's.

All you do is add them. 1+1=2

So, your exponent is going to be 2 with x attached

***When you are multiplying and you have the same exponent, add them. Pretend that you see the exponent 1 by the x (x^{1}) now since you have 2 (x^{1} +x^{1}) which equals (x^{2})

Looks Like:

3x* -x

=3x* -(1)x

= -3x^{2}

Hope this helped :)

6 0
3 years ago
Which number is NOT a multiple of the number 4?<br><br> A. 4<br> B. 18<br> C. 40<br> D. 88
Kobotan [32]

Answer:

b.18

Step-by-step explanation:

18/4=4.5

8 0
3 years ago
Read 2 more answers
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