All categories

3 years ago

Select the number like that matches the expression |-6-(-3)|

Mathematics

1 answer:

Harman [31]3 years ago

8 0

Answer:

Step-by-step explanation:

Firstly, do the numbers inside the absolute value bars.

-6-(-3)

The two negatives that are together turn to a addition sign.

-6+3

You can just subtract 6 and 3 which is 3 and add the - to it.

|-3|

The -3 turns to a 3 since the absolute value bars make all numbers positive within the bars.

Hope this helped.

You might be interested in

(12 ÷ 3 + 6) -4 Math help

LekaFEV [45]

Answer:

Well, we have to remember that we must use PEMDAS, or the order of operations, to solve the expression.

Therefore, we must first either divide or multiply anything that is inside of the parentheses. (In this case divide)

$12/3=4$

$(4+6)-4$

Now solve what remains in the parentheses.

$4+6=10$

$10-4$

Finally, subtract 4 from 10 and get your answer:

4 0

2 years ago

Read 2 more answers

Construct a 95% confidence interval for a population proportion using repeated tests of significance to develop an interval of p

Sunny_sXe [5.5K]

Answer:

bzissssossisbs x9s s siss s sبسیسجسبسئسطسب،یز unsbsjsus

Step-by-step explanation:

bzbzjznzbsisbsbs

8 0

2 years ago

The sum of twice a number and 6 is the same as 3 subtracted from the number itself

rusak2 [61]

3+3=6
6-3=3
the number's 3

8 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

2 years ago

A map represents every 18 kilometers with 1 centimeter. If two locations are actually 54 kilometers apart, what is the distance

Irina-Kira [14]

Answer:

3 centimeters

Step-by-step explanation:

You can find this by dividing 54 by 18, or if you know your timetables, you know that 18x3 is 54.

6 0

2 years ago

Read 2 more answers