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3 years ago

Alica wrote these numbers:2 9 15 21 which of alicas numbers is not a composite number

Mathematics

2 answers:

professor190 [17]3 years ago

6 0

Answer:

2 is not a composite number

natka813 [3]3 years ago

3 0

Answer:

2, because 2 can only be divided by 1 and itself, and thats what a prime number is

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Classify the following real numbers as rational or irrational:

Mashcka [7]

Answer:

a. rational - It can be written as a fraction so it's rational.

b. rational - Simplified it equals to 9, a whole, therefore rational, number.

c. irrational - Even once simplified, it contains a square root, therefore it's irrational.

d. rational - It can be written as a fraction so it's rational.

e. irrational - It cannot be simplified from a square root, therefore it's irrational.

3 0

3 years ago

A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble. What is the probability of choosing a green marble, not replacing it

lys-0071 [83]

The probability for choosing green and red is $\frac{1}{12}$

<u>Solution:</u>

Given that , A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble.

We have to find what is the probability of choosing a green marble, not replacing it, and then choosing a red marble?

Now, we know that,

$\text { probability of an event }=\frac{\text { number of favourable outcomes }}{\text { total number of outcomes }}$

So, total possible outcomes = 1 red + 1 yellow + 1 blue + 1 green = 4

$\text { Now, probability for green marble }=\frac{1 \text { green marble }}{4 \text { marbles }}=\frac{1}{4}$

And now, total outcomes will be only 3 as we are not replacing the picked marble.

$\begin{array}{l}{\text { Then, probability for red marble }=\frac{1 \text { red marble }}{3 \text { marbles }}=\frac{1}{3}} \\\\ {\text { Then overall probability }=\frac{1}{4} \times \frac{1}{3}=\frac{1}{12}}\end{array}$

Hence, the probability for choosing green and red is $\frac{1}{12}$

6 0

3 years ago

Read 2 more answers

I am having the hardest time trying to solve this equation, can someone please help? It's Geometry's line segments.

SIZIF [17.4K]

Answer:

KL = 6

Step-by-step explanation:

IJ + JK +KL = IL

9+ 11 + KL = 26

Combine like terms

20 + KL = 26

Subtract 20 from each side

20+KL -20 =26-20

KL = 6

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2 years ago

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marin [14]

The answer is x<2
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3 years ago

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