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lawyer [7]
3 years ago
7

Find the circumference of the circle. Round your answer to two decimal places if necessary 4cm

Mathematics
1 answer:
ratelena [41]3 years ago
7 0

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

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100 people who were surveyed and asked the question: ``Is fuchsia kinda pink, or purply?'' Of them, 60 believe that fuchsia is `
Kay [80]

Answer:

50

Step-by-step explanation:

Let the event of people who believe that fuchsia is pink = A

Let the event of people who believe that fuchsia is purply = B

  • Since 100 people were surveyed, the Universal Set =100
  • 60 believe that fuchsia is ``kinda pink'', n(A)=60
  • 27 believe it is both ``kinda pink,'' and also ``purply.'': n(A \cap B) =27
  • 17 think that fuchsia is neither ``kinda pink'' nor ``purply. n(A \cup B)'=17

We want to determine the number of those who believe that fuchsia is ``purply'', n(B).

In set theory, we have:

U=n(A)+n(B)-n(A\cap B)+n(A \cup B)'\\100=60+n(B)-27+17\\100=50+n(B)\\n(B)=100-50\\n(B)=50

Therefore, the number of those who believe that fuchsia is ``purply'' is 50.

5 0
3 years ago
Marks age next year will be three times jims age from 2 years ago. If the sum of their ages now is 21, how old are they? plz hel
miv72 [106K]

Answer: Mark is 14 and Jim is 7.

Step-by-step explanation: It says that next year Mark will be threee times older than Jim was 2 years ago.

The wrk is:

7-2=5(Jims age 2 years ago)

5x3=15

15-1=14(you subtract 1 because Mark's current age is 14 because it says that next year it will be 3 times Jim's)

8 0
4 years ago
20 POINTS PLEASE HELP
Temka [501]
1. It's in point-slope form right now
y - 7 = -x - 4
x + y = 3

2. Find the slope through (y2-y1) / (x2-x1)
The slope is 3.
Use the point slope formula: y - 9 = 3 (x - 8)
y - 9 = 3x - 24
y = 3x - 15

3. a. standard form
b. point-slope
c. slope-intercept
d. standard

5. Use point-slope: y - 8 = 6 (x - 3)
y - 8 = 6x - 18
-6x + y = -10
6 0
4 years ago
Semester I review <br> -15+n=-9
lapo4ka [179]

Answer:

n=-6

Step-by-step explanation:

-15-9=n

n=-6

8 0
3 years ago
Lucy bought 512 of a pound of candy. Greta bought 312 of a pound of candy. Which equation correctly represents the total weight
lyudmila [28]

Answer:

824 punds of candy

Step-by-step explanation:

512 + 312

Total means together and adding. You would add the 2 numbers and get our answer.

8 0
3 years ago
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