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3 years ago

ITS DUE SOON PLEASE HELP ME

Mathematics

2 answers:

bezimeni [28]3 years ago

6 0

Answer:

Step-by-step explanation:

The total amount of students is 240

240(50%) = 120 > 60 so, the first true or false is False

240(5%) = 12 = 12 so, the the second true or false is True

240(60%) = 144 = 144 so, the third true or false is True

132 + 12 = 144

valkas [14]3 years ago

6 0

144 is the answer I’m pretty sure

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Spencer is a single father of two kids. He made $50,000 last year, and received $1,000 in interest from a CD he has. He plans to

rjkz [21]

The answer would be C. HIS FILING STATUS.

Given:
Single father.
income of 50,000
interest income from CD of 1,000
filing status: HEAD OF HOUSEHOLD.

In using 1040EZ form for filing his taxes, must file as ''SINGLE''. This form can also be used by married individuals who are filing under the status of "Married filing jointly.".

Since Spencer is filing under the status of HEAD OF HOUSEHOLD, he should use either 1040 or 1040A.

3 0

3 years ago

Read 2 more answers

10. A random sample of 10 fibers is taken from a collection of 92 fibers that consists of 43 fibers of polymer A, 17 fibers of p

vazorg [7]

Answer:

0.1150 = 11.50% probability that the sample does not contain any fibers of polymer B

Step-by-step explanation:

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

Fibers are chosen without replacement, which means that we use the hypergeometric distribution.

92 fibers means that $N = 92$

Sample of 10 means that $n = 10$

No polymeter B which means that $x = 0$

17 fibers of polymeter B which means that $k = 17$

a. What is the probability that the sample does not contain any fibers of polymer B

This is P(X = 0).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 0) = h(0,92,10,17) = \frac{C_{17,0}*C_{75,10}}{C_{92,10}} = 0.1150$

0.1150 = 11.50% probability that the sample does not contain any fibers of polymer B

4 0

3 years ago

Help plsssssssssssss

Rina8888 [55]

Answer:

Answer:OPTIONS

Answer:OPTIONS3 D

Answer:OPTIONS3 D4 D

Answer:OPTIONS3 D4 D5 B

Answer:OPTIONS3 D4 D5 BStep-by-step explanation:

Answer:OPTIONS3 D4 D5 BStep-by-step explanation:MEAN IS =SUM OF ALL NO.S /TOTAL.NO'S(AVERAGE)

Answer:OPTIONS3 D4 D5 BStep-by-step explanation:MEAN IS =SUM OF ALL NO.S /TOTAL.NO'S(AVERAGE)FIRST WE FIND SUM OF ALL NO. 

Answer:OPTIONS3 D4 D5 BStep-by-step explanation:MEAN IS =SUM OF ALL NO.S /TOTAL.NO'S(AVERAGE)FIRST WE FIND SUM OF ALL NO. MEDIAN=AVERAGE OF MIDDLE TERMS

3 0

3 years ago

You see a shirt for 97 dollars.

love history [14]

When you paid $97.00 for the shirt you should have given each parent $48.50 for the purchase of the shirt, which would = $97.00.

Then add the $1.00 each you returned from the change. At this point you should have $99.00 as your total. 

Finally add the $1.00 that you kept, which should give you $100.00. 

In the end you still owe your parents an additional .50 cents each for your initial purchase of the shirt.

8 0

3 years ago

Find the quotient of 2 1/4 / 4/5

Masja [62]

Answer:

2 13/16 is the answer

7 0

3 years ago