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3 years ago

50 POINTS!! What is the sum of the first four composite numbers? 19 20 27 28

Mathematics

2 answers:

Nataliya [291]3 years ago

6 0

its 27

hope this helps

irina1246 [14]3 years ago

3 0

Answer:

C.27

Step-by-step explanation:

Composite number is a number that have factor other than 1 or the number itself. It is the opposite of prime number. Then to solve this question it will be easier to make this list

2= 2 *1 = prime

3= 3 *1 = prime

4= 2 *2 = composite

5= 5 *1 = prime

6= 2 *3 = composite

7= 7 *1 = prime

8= 2 *2 * 2 = composite

9= 3 *3 = composite

then 4 first composite is: 4+6+8+9= 27

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A bin contains 64 light bulbs of which 10 are defective. if 5 light bulbs are randomly selected from the bin with replacement, f

Sloan [31]

Total number of bulbs = 64
Number of defective bulbs = 10
Number of good bulbs = 64 - 10 = 54

P(5 good bulbs) = (54/64)⁵ = (27/32)⁵ = 0.428

Answer: 0.428

3 0

3 years ago

Which pair of monomials has the least common multiple (LCM) of 54x2y3?

Lera25 [3.4K]

ANSWER

The correct answer is D.

EXPLANATION

If we express the monomial,

$18 {x}^{2} y$

as product of primes, we obtain:

$2 \times {3}^{2} \times {x}^{2}y$

If we express the monomial

$27x {y}^{3}$

as product of primes we obtain:

$= {3}^{3} \times x {y}^{3}$

The least common multiple of these two binomials is the product of the highest powers of the common factors.

The LCM is

$= 2 \times {3}^{3} \times {x}^{2} {y}^{3}$

$=54 {x}^{2} {y}^{3}$

Therefore the correct answer is D.

6 0

3 years ago

Read 2 more answers

Guys I just went poop and there's no toilet paper please help what do I do oh my godddd

iogann1982 [59]

Answer:

Use water to clean yourself and than just wash your hands afterward lol

Step-by-step explanation:

8 0

3 years ago

The radii of two right circular cylinders are in the ratio 3 : 4 and their heights are in the ratio 1 : 2. Calculate the ratio o

bezimeni [28]

Answer:

18.852:50.272

Step-by-step explanation:

Step one:

given

The radii of two right circular cylinders are in the ratio 3 : 4

r1= 3

r2= 4

Their heights are in the ratio 1 : 2

h1= 1

h2= 2

Step two:

The expression for the curve surface area is

CSA= 2πrh

CAS1= 2πr1h1

CAS1= 2*3.142*3*1

CAS1= 18.852

CAS2= 2πr2h2

CAS2= 2*3.142*4*2

CAS1= 50.272

The ratio of their curved surface areas

=18.852:50.272

3 0

3 years ago

a store marks up the merchandise it sells by 40%. If the regular price of the item WAS $25 how much is the store selling it for.

devlian [24]

So if the regular price of an item is 25 and the store is marking it up by 40%, then we have to multiply 25 by .4 to find out what 40% of 25 dollars is. 40% of 25 is 10 dollars. So now you just do 25 + 10 and you get 35. Answer: $35

7 0

3 years ago