All categories

3 years ago

Which number is a composite number? A.11 B.21 C.31 D.41

Mathematics

2 answers:

kobusy [5.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

A prime number has only two factors: 1 and itself.

A composite number has more than two factors. The number 1 is neither prime nor composite.

aivan3 [116]3 years ago

5 0

Answer:

B. 21

Step-by-step explanation:

31 is the only number that can be made by multiplying another number other than 1 and itself.

1x21=21

3x7=21

all the other options only have 2 factors

You might be interested in

2- 1/2 divided by 1 - 1/4

wlad13 [49]

Answer: 1.25

Step-by-step explanation:

3 0

3 years ago

Help me with this please.

andriy [413]

1. bc/3 + a/xy + 3/ab
= b^2cxya + 3a^2b + 9xy/3xyab

2. (5/3y) + 2y - 12
=11/3y - 2

3. ?

Hope this helps and right! :)) Good luck

4 0

2 years ago

What is the answer for -5(a-6) + 2a

katen-ka-za [31]

Answer:

27a

Step-by-step explanation:

-5(a-6)+2a

-5a+30+2a

-3a+30

27a

7 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=4%5E%7B%5Cfrac%7B-5%7D%7B2%7D%20%7D" id="TexFormula1" title="4^{\frac{-5}{2} }" alt="4^{\frac{

photoshop1234 [79]

Answer:

Given expression is equal to 1/32

Step-by-step explanation:

Given that:

= 4^(-5/2)

To eliminate "-" sign we will invert the fraction as follows:

= (1/4)^ 5/2

Or it can be written as:

= $=\sqrt{(1/4)^5} \\=\sqrt{1/1024} \\=1/32$

This is the simplified expression.

i hope it will help you!

8 0

3 years ago

. _ .<br>................

Rama09 [41]

Answer:

Step-by-step explanation:

All you gotta do is 9x4 or 9+9+9+9=36

7 0

3 years ago

Read 2 more answers