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3 years ago

3 2/3 - 2 4/11= ?? ( in simplest form ??

Mathematics

1 answer:

evablogger [386]3 years ago

7 0

Answer:

3 2/3 is in simplest form and 2 4/11 is in simplest form.

Step-by-step explanation:

If the denomiator is a odd number you can not put it in simplest form.

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Please help! I will mark as brainliest IF answer is right. <3

Ksju [112]

Answer:

$y = - \frac{11}{2} x + 30 \frac{1}{2}$

$y = 30 \frac{1}{2} - \frac{11}{2} x$

if accepted:

$2y = - 11x + 61$

$2y = 61 - 11x$

8 0

2 years ago

About 5% of the population has a particular genetic mutation. 900 people are randomly selected.

Gelneren [198K]

I think u need to do 5%*900 which is 5 percent of 900. the answer might be 45 I'm not 100 percebt sure tho

8 0

3 years ago

Michael will be running a 15 mile road race this weekend how many feet will he run

sergij07 [2.7K]

Answer:

79,200

Step-by-step explanation:

There are 5280 feet in 1 mile, then you just multiply 5280 by the number of miles (15). So 5280 x 15 = 79,200

5 0

3 years ago

Read 2 more answers

At Information and Communications University: 31 female seniors were on the dean’s list 62 women were on the dean’s list who wer

inessss [21]

Step-by-step explanation:

There's a lot of information here, so first things first, let's get organized.

Let's start by assigning variable names to each group. We want the variables to be short but easy to understand.

For example, let's say the number of female seniors on the dean's list is FSD (F for female, S for senior, and D for dean's list).

FSD = 31

Sticking to this naming scheme:

FD = 62

MSD = 45

FS = 87

MS = 96

F = 275

MD = 88

M = 227

Now we can begin.

a) We want to know how many seniors there are. So all we have to do is add up all the variables with an S in them.

FSD + MSD + FS + MS

31 + 45 + 87 + 96

259

b) We want to know how many women there are. So add up all the variables with an F in them.

FSD + FD + FS + F

31 + 62 + 87 + 275

455

c) We want to know how many are on the dean's list. So add up all the variables with a D in them.

FSD + FD + MSD + MD

31 + 62 + 45 + 88

226

d) Now we want to know how many are seniors AND on the dean's list. So add up all the variables that have both an S and a D.

FSD + MSD

31 + 45

e) We want to know how many female seniors there are, so add up all the variables with both an F and an S.

FSD + FS

31 + 87

118

f) We want to know how many women were on the dean's list, so add up all the variables with both an F and a D.

FSD + FD

31 + 62

g) Finally, we want to know how many students there are total. So add up all the variables.

FSD + FD + MSD + FS + MS + F + MD + M

62 + 45 + 87 + 96 + 275 + 88 + 227

880

5 0

3 years ago

Find the necessary confidence interval for the binomial proportion p. (Round your answers to three decimal places.) A 90% confid

frutty [35]

Answer:

[0.875;0.925]

Step-by-step explanation:

Hello!

You have a random sample of n= 400 from a binomial population with x= 358 success.

Your variable is distributed X~Bi(n;ρ)

Since the sample is large enough you can apply the Central Limit Teorem and approximate the distribution of the sample proportion to normal

^ρ≈N(ρ;(ρ(1-ρ))/n)

And the standarization is

Z= ^ρ-ρ ≈N(0;1)

√(ρ(1-ρ)/n)

The formula to estimate the population proportion with a Confidence Interval is

[^ρ ± $Z_{1-\alpha/2}$ *√(^ρ(1-^ρ)/n)]

The sample proportion is calculated with the following formula:

^ρ= x/n = 358/400 = 0.895 ≅ 0.90

And the Z-value is $Z_{1-\alpha/2} = Z_{0.95} = 1.648$ ≅ 1.65

[0.90 ± 1.65 * √((0.90*0.10)/400)]

[0.875;0.925]

I hope you have a SUPER day!

5 0

3 years ago