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3 years ago

The difference of a rational number and an irrational number is _[blank]_ a rational number.

Mathematics

2 answers:

balu736 [363]3 years ago

8 0

Never a rational number

Galina-37 [17]3 years ago

4 0

Answer:

Never

Step-by-step explanation:

A Rational Number is a number of the form $\frac{p}{q}$ , p & q are integers and q ≠ 0.

An irrational number is all real number except rational numbers i.e. it is a non-repeating and non-terminating decimal number or it can not be expressed in a ratio of two integers.

Further, Natural numbers can be a rational number.

Also, all repeating and terminating decimals are rational.

The difference of rational number and irrational number is never a rational number. For example:

2 - √3 is always an irrational number where 2 is rational and √3 is an irrational number.

Hence addition and subtraction of rational and irrational number is never a rational number it will be irrational number always.

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Rosa earns $120 per week tutoring math. Each week, she puts $36 from her paycheck in her bank account to save for college. Rosa

natita [175]

Answer:

36/120 x 100

= 30%

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3 years ago

What is the percent of increase from 8 to 10?

IceJOKER [234]

Answer:

25%

Step-by-step explanation:

difference between 8 and 10 is 2, so 8 would need to increase by 2 to get to 10.

2 is 1/4 of 8, and 1/4 is 25%

answer is 25%

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3 years ago

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An instructor who taught two sections of engineering probability last term, the first with 20 students and thesecond with 30, de

Oliga [24]

Answer:

0.207

Step-by-step explanation:

This is an hypergeometric distribution problem

An hypergeometric distribution has the same sense as the discrete probabilities of binomial distribution, but unlike binomial distribution, hypergeometric distribution does not allow replacement.

Binomial distribution expresses the probability of picking k objects from n with replacement, but hypergeometric distribution expresses picking k objects from n without replacement, with the finite total population, N, containing K objects.

It is expressed mathematically as

h(k: n, K, N) = (ᴷCₖ)(ᴺ⁻ᴷCₙ₋ₖ)/(ᴺCₙ)

where

k = number of students in the 2nd section required to be in the first 15 graded projects (number of successes) = 10

n = total number of first graded projects (number of trials) = 15

K = number of students in the 2nd section of the class = 30

N = total number of students = 50

h(10: 15, 30, 50) = (³⁰C₁₀)(⁵⁰⁻³⁰C₁₅₋₁₀)/(⁵⁰C₁₅)

h(10: 15, 30, 50) = (³⁰C₁₀)(²⁰C₅)/(⁵⁰C₁₅)

= (30,045,015)(15,504)/(2,250,829,575,120)

P(X = 10) = 0.207

Hope this Helps!!!

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3 years ago

Mr and Mrs Baker place 12-inch rulers along the length of a rug. They each line up 3 rulers along the edge of the rug. What is t

Daniel [21]

3 Feet
12 inches= 1 foot
36 inches = 3 feet

4 0

3 years ago

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I will give brainiest to whoever answers correctly !!

pogonyaev

I don’t know if this is the right answer

700*.075 ÷ 24 will give you your monthly payment.

Explanation: brainly.com/question/9271155

8 0

3 years ago