2 years ago

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Mathematics

2 answers:

vaieri [72.5K]2 years ago

8 0

Answer:

Step-by-step explanation:

nadezda [96]2 years ago

4 0

Answer:

Step-by-step explanation:

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A group of 30 people are going to run a race. The top three runners earn gold silver, and bronze medals .

Masja [62]

You would be correct. There is a 1/10 chance of getting to the top 3. I don’t know the question exactly, but I hope this helps anyway.

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2 years ago

How many positive integers can be expressed ad a product of two or more of the prime numbers 5,7,11,and 13 if no one product is

sertanlavr [38]

Answer:

11 positive integers can be expressed.

Step-by-step explanation:

Consider the provided information.

The number of possible prime numbers are 5,7,11,and 13.

There are 4 possible prime numbers.

How many positive integers can be expressed as a product of two or more of the prime numbers, that means there can be product of two numbers, three number or four numbers.

The formula to calculate combinations is: $^nC_r=\frac{n!}{r!(n-r)!}$

The number of ways are:

$^4C_2+^4C_3+^4C_4=\frac{4!}{2!(4-2)!}+\frac{4!}{3!(4-3)!}+\frac{4!}{4!}$

$^4C_2+^4C_3+^4C_4=\frac{4!}{2!2!}+\frac{4!}{3!}+1$

$^4C_2+^4C_3+^4C_4=6+4+1$

$^4C_2+^4C_3+^4C_4=11$

Hence, 11 positive integers can be expressed.

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3 years ago

Look at the math picture and answer the question correctly.

Ostrovityanka [42]

The answer for this problem is B

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3 years ago

What is the solution to the system of equations below? 2 x + 3 y = 17. 3 x + 6 y = 30. (Negative 7, 24) (3, 4) (4, 3) (24, Negat

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3 years ago

phillip watched a beach volleyball game from 1:45 pm to 2:00pm how many degrees did the minute hand turn?

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The answer is 15 or 1/4

I hope this helps you

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3 years ago