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scZoUnD [109]
4 years ago
11

How do you find the circumference of a circle with a radius of 4?

Mathematics
1 answer:
goldenfox [79]4 years ago
6 0
Circumference of a circle = 2πr
C = 2π(4)
C = 8π
C = 8 * 3.14 = 25.12

In short, Your Answer would be 25.12

Hope this helps!
You might be interested in
(02.05 MC) Two similar triangles are shown on the coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on t
trasher [3.6K]

Answer:

Step-by-step explanation:

The smaller polygon is half the size of the original polygon

7 0
3 years ago
The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial
xxTIMURxx [149]

Step-by-step explanation:

Let the initial population of a community be P0 and the population after time t is P(t).

If the population of a community is known to increase at a rate proportional to the number of people present at time t, this is expressed as:

P(t) = P_0e^{kt}

at t = 5 years, P(t) = 2P0

substitute:

2P_0 = P_0e^{5k}\\2 = e^{5k}\\ln2 = lne^{5k}\\ln2 = 5k\\k = \frac{ln2}{5}\\k = 0.1386

If the population is 9,000 after 3 years

at t = 3, P(t) = 9000

a) Substitute into the formula to get P0

9000 = P_0e^{0.1386\times 3}\\9000 = P_0e^{0.4158}\\9000 = 1.5156P_0\\P_0 = \frac{9000}{1.5156}\\ P_0 = 5938.24

Hence the initial population is approximately 5938.

b) In order to know how fast the population growing at t = 10, we will substitute t = 10 into the formula as shown:

P(10) = 5938.24e^{0.1386(10)}\\P(10) = 5938.24e^{1.386}\\P(10) = 5938.24(3.9988)\\P(10) = 23,745.97

Hence the population of the community after 10 years is approximately 23,746

4 0
4 years ago
A paper has an area of 72 square inches. what is the paper's area in square centimeters? use the following conversion: 1 square
krek1111 [17]
72*6.5=468 cm
Hope this helps
7 0
4 years ago
Does anyone know how to solve this? I would really appreciate help.
Bess [88]

Answer:

Step-by-step explanation:

The intersection point (centroid) divides the medians in ratio 2:1. it does mean that the long segment value is the short segment value multiplied by two. let's call the centroid point G.

BG=DG*2=4*2=8

CG=EG*2=2*2=4

AG=FG*2 =>FG=AG/2=6/2=3

4 0
3 years ago
My question... please answer asap
konstantin123 [22]

Answer:

slope=1/4

y-intercept=3

y=.25x+3

Step-by-step explanation:

slope=rise over run so

slope=1/4

y-intercept is the value of y where the line crosses the y axis..

y-intercept=3

In y=mx+b form m is slope and b is y-intercept so...

y=.25x+3

6 0
3 years ago
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