If the area of each of the triangular regions is as shown, what is the area of the polygon?

A simple off bacteria is debating according to the half life model. If the simple begins with 800 bacteria, and after 18 minutes

Reika [66]

Answer:

After 43 minutes, the bacteria will be 40 remainings.

Step-by-step explanation:

Given that:

Initial population of bacteria $A_o$ = 800

After time (t) = 18 mins

A = 240

Using the model:

$A = A_o e^{k*t}$

$240=800 e^{k*18}$

$\dfrac{240}{800}= e^{18k}$

$0.3= e^{18k}$

By applying natural log on both sides, we get:

In(0,3) = 18k (In e)

- 1.20397 = 18 k * (1)

18 k = -1.20397

k = -1.20397/ 18

k = - 0.06688

k ≅ -0.07

After time (t), the bacteria population (A) = 40

Now;

$40 = 800 e^{k*t}$

$\dfrac{40 }{800}= e^{-0.07*t}$

$0.05= e^{-0.07*t}$

In (0.05) = -0.07t * In (e)

- 2.9957 = - 0.07t

t = - 2.9957/ -0.07

t = 42.795

t ≅ 43 minutes

Thus, after 43 minutes, the bacteria will be 40 remainings.

4 0

3 years ago

4(2 - d) > - 12 help in any possible

wlad13 [49]

So 4(2-d)>-12, simplify both sides of the inequality -4d + 8> -12, subtract 8 from both sides -4d+8-8>-12-8, -4d> -20, divide both sides by -4 which is -4d÷-4>-20÷-4, then the answer will come out to d<5.

3 0

3 years ago

PLEASE HELP (only if you know what you are doing )

KiRa [710]

Answer:

1. 3 2. 22 3. 0

Step-by-step explanation:

First Box: Jada only has $15 dollars she can spend

If she chooses to buy 6 individual songs that would cost her $3.

because each individual song cost $0.50 so (6 times 0.5= 3)

Since Jada only has $15 we need to subtract 3 from 15 to find out how much money she has left. So, 15-3=12. Jada has $12 left

An album cost $4 dollars each so Jada can only buy 3 albums with $12 because 12 divided 4 is 3.

Answer to first box: 3

Second Box: Jada only has $15 dollars she can spend

If she chooses to buy 1 album that would cost her $4.

because each individual song cost $4 so (4 times 1= 4)

Since Jada only has $15 we need to subtract 4 from 15 to find out how much money she has left. So, 15-4=11. Jada has $11 left

An individual song cost $0.50 dollars each so Jada can only buy 22 individual songs with $11 because 11 divided by 0.5=22.

Answer to second box: 22

Third Box: Jada only has $15 dollars she can spend

If she chooses to buy 30 individual songs that would cost her $15.

because each individual song cost $0.50 so (30 times 0.5= 15)

Since Jada only has $15 we need to subtract 15 from 15 to find out how much money she has left. So, 15-15=0. Jada has $0 left

An album cost $4 dollars each so Jada can only buy 0 albums with $0 because 0 divided 4 is 0.

Answer to third box: 0

4 0

3 years ago

Read 2 more answers

What is the answer ;_;

leonid [27]

Baily had 36 and Elena had 40

7 0

3 years ago

Read 2 more answers

1q - 2x = 7 What is x please im so stuck on this i will give brainliest

Tems11 [23]

Answer: x

=

4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers