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Verdich [7]
2 years ago
11

The radius of a circle is 4 kilometers. What is the circumference?

Mathematics
1 answer:
zaharov [31]2 years ago
3 0

Answer:

25.12 kilometers

Step-by-step explanation:

c = 2\pi \: r

C = 2 × 3.14 × 4

C = 25.12

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What percent of workers have output more than 70 units?
ivann1987 [24]

Answer:

30%

Step-by-step explanation:

6 0
3 years ago
Find the length of the median and the missing base. Be sure to show all your work. NO LINKS!!!​
dezoksy [38]

Answer:

The bottom is  11

The median is  12

Step-by-step explanation:

The median is the average of the top and bottom

(13+ 2x-3) /2 = 4x-16

Combine like terms

(10+2x)/2 = 4x-16

Divide by 2

5+x = 4x-16

Subtract x from each side

5+x-x = 4x-16-x

5 = 3x-16

Add 16 to each side

5+16 = 3x-16+16

21 = 3x

Divide by 3

21/3 = 3x/3

7 =x

The bottom is 2x-3 = 2*7-3 = 14-3 = 11

The median is 4x-16 = 4*7-16 = 28 -16 = 12

7 0
2 years ago
Read 2 more answers
Fifteen 7th graders were asked how many hours they spend doing homework each week and how many hours they spend watching televis
timama [110]

Answer:

A.

  • 18 > 14, true

B.

  • 12 - 16 = -4, true

C.

<u>Mean:</u>

  • Homework = (4 + 6*2+10*3+12*2+14*4+16*2+18)/15 = 11.73
  • Television = (0 + 10*3+12*1+16*3+18*4+20*3)/15 = 14.8

<u>The difference:</u>

  • 14.8 - 11.73 > 1, NOT true

D.

  • True
3 0
3 years ago
If the original quantity is 15 and the new quantity is 19, estimate the percent change.
eduard
To calculate percent change:
(difference between original and new)/original * 100
(19-15)/15 * 100 =
4/15 * 100 = 26.7 % increase

5 0
3 years ago
Horizontal plane A and vertical plane B intersect at a line. Line n is vertical on plane B and forms a right angle with horizont
Greeley [361]

Answer:

L and M - None of these

L and N - Skew

M and N - Perpendicular

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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