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goldfiish [28.3K]
3 years ago
8

Identify the number as rational or irrational. Explain. 291.87

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
7 0
I believe it would be irrational cause it is written as a decimal and is not repeating.
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Find the area and the circumference of a circle with diameter 8 cm. Use the value 3.14 for π , and do not round your answers. Be
Illusion [34]

Answer:

Area= 50.24 squared cm.

Circumference= 25.12 cm.

Step-by-step explanation:

To find the area of a circle- A= 3.14*(4 cm squared). ( The 4 cm is your radius. Half of the diameter.) After you square your radius you get 16cm squared. You then go onto multiply the 16 cm squared by 3.14 to get 50.24 cm squared.

To find the circumference of a circle- C= 2*(3.14)*(4cm). (Again the 4cm is your radius. Half of the diameter.) After you multiply the 2 and 3.14 you get 6.28. You then multiply the 6.28 by 4 cm to get 25.12 cm.

7 0
3 years ago
Find the length of Arc YWV, if line XZ=12 meters. (Round to the nearest hundredth)
Oksana_A [137]

Answer:

53.62 m

Step-by-step explanation:

Length of arc = θ/360 × 2πr

r = XZ = 12 m

m<XYZ = 180 - 108 = 72° (angles on a straight line)

θ = 85° + 72° + 108° = 265°

Length of arc YWV = 256/360 × 2 × π × 12

= 53.6165146 ≈ 53.62 m (nearest hundredth)

3 0
3 years ago
The radius of a circle is 6 inches. What is the length of a 135-degree arc?
svp [43]
14.14 inches

Convert 135° into radians. 135*2pi/360=3pi/4.
6*3pi/4=18pi/4=9pi/2=14.14

Another viable method is to do 2pi*6*135/360=14.14
8 0
2 years ago
Please please answer this correctly. Please take a pic of the same screenshot of put the right plots correctly
sergeinik [125]

Answer:

Picture

Step-by-step explanation:

I graphed them

4 0
3 years ago
Determine whether the given value is a solution of the equation: x + 15 = 10; x=5 *
kobusy [5.1K]

Answer:

It is not correct, x = -5

Step-by-step explanation:

5 0
3 years ago
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