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ludmilkaskok [199]
3 years ago
5

Explain why the sum of 2 rational numbers is rational.

Mathematics
1 answer:
Marianna [84]3 years ago
3 0
Only the division of two rational numbers might be irrational.  

Hope this helps!

~ThePirc
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Yes I got the third one too
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3 years ago
L,m,n share money in the ratio 2:3:5. What fraction of money does m receive?
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Marcus has created a budget for his upcoming trip to the theme park. Admission is 40% of the budget. He plans to spend 32% of his money on food, 23% on souvenirs, and save 5% for emergencies. He knows the admission will be $6 less than he will spend on food and souvenirs. How much money will Marcus need to take to the park?

solve my question giving 18 points

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3 years ago
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Given the points (–3,k) and (2,0), for which values of k would the distance between the points be √34 ?
myrzilka [38]

Answer:

The values of k are 3 and -3

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

we have

(-3,k)\\(2,0)  

d=\sqrt{34}

substitute

\sqrt{34}=\sqrt{(0-k)^{2}+(2+3)^{2}}

\sqrt{34}=\sqrt{(-k)^{2}+(5)^{2}}

\sqrt{34}=\sqrt{k^{2}+25}

squared both sides

34=k^{2}+25

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6 0
4 years ago
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What is 378.181 rounded to the nearest tenth
solong [7]
400 because the tens is a 8
6 0
3 years ago
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Which of the following is equivalent to the polynomial given below?
Marizza181 [45]

Answer:

(x+(3+\sqrt{11}i)) (x+(3-\sqrt{11}i))

Step-by-step explanation:

The first step to this problem is to look at the key features of the initial expression given to us. Namely, the middle term.

Notice that it is just +6x. This indicates that the square root terms cancel out, meaning that their signs need to be opposite, but the threes need to have the same, positive sign. This indicates that our answer is option C, but you should always double check by multiplying the expression out to confirm. Here are the steps:

(x+(3+\sqrt{11}i)) (x+(3-\sqrt{11}i))

x^{2} +(3+\sqrt{11}i)x+(3-\sqrt{11}i)x+(3+\sqrt{11}i)(3-\sqrt{11}i)x^{2}+3x+\sqrt{11}ix+3x-\sqrt{11}ix+9+3\sqrt{11}i-3\sqrt{11}i-(\sqrt{11})^{2}(i^{2})x^{2}+6x+9-(11)(-1)

x^{2}+6x+9+11

x^{2}+6x+20

Therefore as we suspected, the answer is C.

3 0
3 years ago
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