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lesya [120]
3 years ago
11

Vítor knows he must prepare and possibly prevent overdraft funds fees since they are charged automatically. Which statement belo

w would be the least effective element of a plan Vitor could use to accurately estimate (or minimize) overdraft fees on the account?
Mathematics
2 answers:
galina1969 [7]3 years ago
6 0
The statement below would be the least effective element of a plan Vitor could use to accurately estimate (or minimize) overdraft fees on the account is he need to <span>use the debit card for a large number of small purchases and check the balance later.</span>
Vaselesa [24]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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Y=(x-4)/(x*x)-11x+28
klio [65]
Y=(x-4)/2x-11x+28
y=(x/2x)-(4/2x)-11x+28
y=0.5x-2x-11x-28
1. subtract like terms
2. add 28 on both sides
3. so on and so forth...
3 0
3 years ago
NO LINKS!!! Part 2: <br><br><img src="https://tex.z-dn.net/?f=y%20%3D%20%5Csqrt%7Bx%7D%20" id="TexFormula1" title="y = \sqrt{x}
garik1379 [7]

Range: 3.5, 1.5

Shape: Right angle

Domain: f(x)=x²

g(x)=1/x

3 0
2 years ago
Read 2 more answers
The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is dra
olga2289 [7]

Using the normal distribution, there is a 0.2148 = 21.48% probability that the sum of the 40 values is less than 7,100.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

For this problem, these parameters are given as follows:

\mu = 180, \sigma = 20, n = 40, s = \frac{20}{\sqrt{40}} = 3.1623

A sum of 7100 is equivalent to a sample mean of 7100/40 = 177.5, which means that the probability is the <u>p-value of Z when X = 177.5</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem:

Z = \frac{X - \mu}{s}

Z = \frac{177.5 - 180}{3.1623}

Z = -0.79

Z = -0.79 has a p-value of 0.2148.

There is a 0.2148 = 21.48% probability that the sum of the 40 values is less than 7,100.

More can be learned about the normal distribution at brainly.com/question/28135235

#SPJ1

5 0
2 years ago
There are 408 students at a school. The cafeteria holds up to 90 students at a time. Are 4 lunch periods enough to allow every s
BartSMP [9]

<h3>No</h3>

because during 4 lunch periods the cafeteria can hold up only:

4 · 90 = 360 students

and 360 < 408

4 0
3 years ago
the biology class has created two data files on the computer one file is 2 1/9 megabytes while the other file is 4 1/2 megabytes
Tamiku [17]
The second file is larger by 2.3888888 megabytes.
7 0
3 years ago
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