All categories

3 years ago

True or False? Natural Numbers are closed under division.

Mathematics

1 answer:

nignag [31]3 years ago

7 0

False because you can subtract your way out of the set of whole numbers

You might be interested in

What is the difference between absolute value negative 3 and -3

PolarNik [594]

They both have the same absolute value. Their absolute value would be 3

3 0

3 years ago

Which is greater 7/8 or 5/10

Sloan [31]

Find a common denominator 7/8 = 35/40 and 5/10 = 20/40. Also 7/8 is almost a whole and 5/10 is half. 7/8 is greater.

7 0

3 years ago

Read 2 more answers

2 3 -3 -6 Please help

fgiga [73]

Find x-intercept and y-intercept

x-intercept = 3 → (3, 0)

y-intercept = -6 → (0, -6)

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{-6-0}{0-3}=\dfrac{-6}{-3}=2$

Answer: 2

4 0

3 years ago

Write as a fraction in simplest form.

seropon [69]

Answer:

2/4=1/2

3/6=1/2

4/16=1/4

7 0

2 years ago

Ari said there are three possible outcomes when you spin this spinner twice: two reds, a yellow and a red, or two yellows.

EastWind [94]

Answer:

From inspection of the diagram, we can see that the spinner is divided into 4 equal parts, where 3 parts are red and 1 part is yellow.

$\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}$

Therefore,

$\implies \textsf{Probability of getting a red} = \sf \dfrac{3}{4}$

$\implies \textsf{Probability of getting a yellow} = \sf \dfrac{1}{4}$

Multiplication Rule for Independent Events

For independent events A and B:

$\sf P(A\:and\:B)=P(A) \times P(B)$

Therefore,

$\begin{aligned}\implies \sf P(yellow\:and\:yellow) & = \sf P(yellow) \times P(yellow)\\\\ & = \sf \dfrac{1}{4} \times \dfrac{1}{4}\\\\ & = \sf \dfrac{1}{16}\end{aligned}$

<h3>Conclusion</h3>

Ari is incorrect. The spinner is divided into 4 parts, where only one part is yellow. Therefore, the probability of spinning a yellow is 1/4. As the events are independent, the Multiplication Rule should be used to calculate the probability of spinning 2 yellows. So the probability of spinning 2 yellows is 1/4 x 1/4 = 1/16.

8 0

1 year ago

Read 2 more answers