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3 years ago

Macy has a circular garden that has a radius of 9 meters. What is the circumference of her garden? Use 3.14 for pi.

Mathematics

1 answer:

olga2289 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

i am 99.99% sure it is c

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The current population of a town is 10,000 and its growth in years can be represented by P(t) = 10,000(0.2)^t, where t is the ti

DiKsa [7]

Answer:

1) 20%

2) Choice a.

Step-by-step explanation:

$P(t)=10000(0.2)^t$

1) $P(0)$ is the population initially.

$P(1)$ is the population after a year.

$\frac{P(1)}{P(0)}$ represents the population increase factor.

So let's evaluate that fraction:

$\frac{P(1)}{P(0)}$

$\frac{10000(0.2)^1}{10000(0.2)^0}$

$\frac{0.2^1}{0.2^0}=\frac{0.2}{1}=0.2$

0.2=20%

2) Let's figure out the population growth in terms of months instead of years.

$P(t)=10000(0.2)^{t}$

We want t to represent months.

A full year is 12 months, in a full year we have that $P(1)=10000(0.2)^1=10000(0.2)=2000$

So we want a new P such that $P(12)=2000$ since 12 months equals a year.

Let's look at the functions given to see which gives us this:

a) $P(12)=10000(0.87449)^{12}=2000 \text{approximately}$

b) $P(12)=10000(0.87449)^{12(12)}=0 \text{ approximately}$

c) $P(12)=10000(0.87449)^{\frac{1}{12}}=9889 \text{approximately}$

d) $P(12)=10000(0.87449)^{12+12}=400 \text{approximately}$

So a is the function we want.

Also another way to look at this:

$P(t)=10000(.2)^t$ where $t$ is in years.

$P(t)=10000(.2^\frac{1}{12})^t$ where $t$ is in months.

And $.2^\frac{1}{12}=0.874485 \text{approximately}$

8 0

4 years ago

IR = V (solve for R) *

VashaNatasha [74]

Answer:

R = $\frac{V}{I}$

Step-by-step explanation:

IR = V ( isolate R by dividing both sides by I )

R = $\frac{V}{I}$

6 0

2 years ago

Goran rented a truck for one day. There was a base fee of $19.99 , and there was an additional charge of 94 cents for each mile

nekit [7.7K]

138.43-19.99=118.44
118.44/0.94=126.

Hope this helps :)

6 0

4 years ago

6) What are ED and FD?

kolezko [41]

Answer:

ED = 12 and FD = 24

Step-by-step explanation:

See the attached diagram.

The perpendicular distance between the three parallel lines are same i.e. AB = BC = 8

Therefore, the parallel lines will divide any transverse line ( say FD ) in 1 : 1 ratio i.e. will divide equally.

Therefore, FE = ED = 12 units.

Again, FD = FE + ED = 12 + 12 = 24 units. (Answer)

5 0

3 years ago

The distance between R and T on the coordinate grid is ___ units. (Input whole numbers only.)

gogolik [260]

15 units of distance. So 15

7 0

3 years ago