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timurjin [86]
3 years ago
10

Last month you spent $20 on clothing. This month you spent 180% of what you spent last month. How much did you spend this month?

Mathematics
1 answer:
frutty [35]3 years ago
8 0
Stan Han Jisung!!!!!He literally cute!!hdbdbdkkdjd

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Lionfish are considered an invasive species, with an annual growth rate of 65%. a scientist estimates there are 7,000 lionfish i
sashaice [31]

The number of lionfish after 6 years will be 85,609. The recursive equation for f(n) will be f(n) = 4242.42(1.65)ⁿ - 1300n.

<h3>What is an exponent?</h3>

Consider the function:

y = a (1 ± r) ˣ

Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

lionfish are considered an invasive species, with an annual growth rate of 65%.

Then the equation will be

f(n) = P(1.65)ⁿ

P = initial polulation

A scientist estimates there are 7,000 lionfish in a certain bay after the first year.

7000 = P(1.65)

      P = 4242.42

Then the equation will be

f(n) = 4242.42(1.65)ⁿ

The number of lionfish after 6 years will be

f(n) = 4242.42(1.65)⁶

f(n) = 85608.58

f(n) ≅ 85,609

If scientists remove 1,300 fish per year from the bay after the first year.

Then the recursive equation for f(n) will be

f(n) = 4242.42(1.65)ⁿ - 1300n

More about the exponent link is given below.

brainly.com/question/5497425

#SPJ1

4 0
2 years ago
According to a recent​ study, 1 in every 10 women has been a victim of domestic abuse at some point in her life. Suppose we have
Schach [20]

According to the given, 1 in every 10 women has been a victim, therefore the probability of a  victim of domestic abuse at some pint is

p=\frac{1}{10} = 0.10

We need to use Binomial distribution to take a randomly sampled of 25 women and asked each whether she has been a victim.

f(x)= ^nC_x (p)^x (1-p)^{n-x}

Where x is the event that shows a victim of domestic abuse at some point.

We need to find the probability of these victim at least 2 has been victim of abuse, so

P(x>=2) = 1- [P(x=0)+P(x=1)]

P(x>=2) = 1 - [^{25}C_0(0.10)^0(1-0.10)^{25-0}+^{25}C_1(0.10)^1(1-0.10)^{25-1}]

P(x>=2) = 1 - [0.07198+0.199]

P(x>=2) = 0.72902

So the probability is 0.729

3 0
4 years ago
Which is a true statement about any two cords that are the same distance from the center of a circle
RoseWind [281]

Answer:

Probably that they are both the same length!

4 0
3 years ago
A random telephone survey of 1021 adults (aged 18 and older) was conducted by Opinion Research Corporation on behalf of Complete
Wewaii [24]

Answer:

a. See attachment below

b. 613 people

c. Categorical

Step-by-step explanation:

a. View attachment below

b.

Given

Total Number of People Surveyed = 1021

X tax return by professional / Number of People Surveyed = 60%

X tax /1021 = 0.6

X tax = 0.6 * 1021

X tax = 612.6

X tax = 613------ Approximated

So, the number of people used an accountant or professional tax preparer are 613.

c.

The data for preparing a tax return will be considered as categorical as the methods for a person to file his/her tax returns are categorized into four which are:

1.Electronically

2.Manual preparation

3.Online tax service

4.Use of software tax program

7 0
3 years ago
HELP PLEASE DUE IN 4 MINUTES
LuckyWell [14K]

Answer:

a is the answer

7 0
3 years ago
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