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LUCKY_DIMON [66]
2 years ago
12

What is the approximate area of the shaded region?

Mathematics
1 answer:
vaieri [72.5K]2 years ago
7 0
If we consider that the figure is a square and the white region of the figure is a circle, the area of the shaded region is:

S=S_{square}-S_{circle}=\ell^2-\pi r^2=10^2-\pi5^2=100-25\pi\\\\
S\approx100-25\cdot3.14=100-78.5\\\\
\boxed{S\approx21.5~cm^2}\Longrightarrow Alternative~D
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Your high school is having a competition where students have to guess how many candy canes are in a jar. The tens digit is 4 mor
rodikova [14]

Answer:

40

Step-by-step explanation:

let ones be x

tens is 4 + 2x

4 + 2x + x = 4

3x = 0

x = 0

tens is 4 + 2*0

tens = 4

40 candy canes

5 0
2 years ago
Find the length of side x in simplest radical form with a rational denominator.
madreJ [45]

Answer:

x=2√5

Step-by-step explanation:

<u>1st method:</u>

sin(30)=opposite/hypotenuse=√5/x

sin(30)x=√5

x=√5/sin(30)

x=2√5

<u>2nd method:</u>

cos(60)=adjacent/hypotenuse=√5/x

cos(60)x=√5

x=√5/cos(60)

x=2√5

<u>3rd method:</u>

This is a 30-60-90 triangle, so we can multiply the short side, √5, by 2, to get x=2√5

8 0
3 years ago
The value of y varies directly with x and inversely with
Pani-rosa [81]

Answer:

x = 45 when y = 20 and z = 6

Step-by-step explanation:

The general formula here is y = kx/z²

If x = 24 and y = 6, z = 8, so:

y = kx/z² becomes 6 = k(24)/8², and:

             6                   1

k = ---------------- = -------------- = 16

         24/64            4/64

Then y = 16x/z², and so, if y = 20 and z = 6 (check this!), then:

20 = 16x/36, or 16x = 720, or x = 45

x = 45 when y = 20 and z = 6

3 0
2 years ago
If Archie has 100 balls, and 39 of those are tennis balls, what percent of the total balls are tennis balls?
docker41 [41]
39/100=0.39

0.39*100=39

%39
6 0
3 years ago
Number 31<br> Any help please?
Alex73 [517]
2,200*14=30,800
2,000*13=26,000
14+13=27
30,800+26,000=56,000

Your answer is C, 13(:
5 0
3 years ago
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