MATHEMATICS HIGH SCHOOL

In which number system does the equation have a solution? x^2=20 integers natural numbers C) rational numbers irrational numbers
In which number system does the equation have a solution? - 1

Answers

Answer 1
Answer: D, irrational numbers. The opposite of squaring something is to find the square root and the square root of 20 is 4.4... 4.4 is an irrational number, therefore that is your answer. It wouldn't be rational because you can t write it as a fraction, 4.4 isn't a whole number so its not natural, and its not an integer because if you have anything right of the decimal point that is not zero, it's not an integer.

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Which constants can be multiplied by the equations so one variable will be eliminated when the systems are added together?5x + 13y = 232 12x + 7y = 218 The first equation can be multiplied by –13 and the second equation by 7 to eliminate y. The first equation can be multiplied by 7 and the second equation by 13 to eliminate y. The first equation can be multiplied by –12 and the second equation by 5 to eliminate x. The first equation can be multiplied by 5 and the second equation by 12 to eliminate x.
15% of what number equals 12?
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If a scale is 1:250,000 and the distance is 8.5cm on the map what's the actual distance

Answers

8.5cm · 250,000 = 2,125,000cm

1m = 100cm therefore 1cm = 0.01m

2,125,000cm = 2,125,000 · 0.01 = 21,250m

1km = 1,000m therefore 1m = 0.001km

21,250m = 21,250 · 0.001km = 21.25km

Answer: 21,250m = 21,25km

-1 1/6 - (-2 1/3) =Please explain how you got the answer! :)

I need the answer quickly!!!

Answers

HI Brainiac


-1 1/6 -(-2 1/3)

= -7/6 -(-7/3)

= -7/6 - -7/3

= 7/6


I hope that's help:0

Please ask me any questions you want.

Write 9(39) using the Distributive Property. Then simplify.

Answers

9 x 3 = 27
9 x 9 = 81
27+81= 109

Square root of-100x^4y^13

Answers

Answer:

10x^2y^6√y

Step-by-step explanation:

1. First, let's factor out any perfect squares from the expression under the square root. In this case, we can factor out 100, which is a perfect square:

√(100 * x^4 * y^13)

2. Taking the square root of 100 gives us 10:

10 * √(x^4 * y^13)

3. Now, let's simplify the expression under the square root. Remember that the square root of a product is equal to the product of the square roots:

10 * √(x^4) * √(y^13)

4. The square root of x^4 is x^2:

10 * x^2 * √(y^13)

5. Finally, let's simplify the square root of y^13. Since 13 is an odd number, we can write it as the product of a perfect square and an additional factor:

10 * x^2 * √(y^12 * y)

6. The square root of y^12 is y^6:

10 * x^2 * y^6 * √y

Therefore, the simplified expression for the square root of -100x^4y^13 is:

10x^2y^6√y

The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle

Answers

Answer:

L=8, W=4

Step-by-step explanation:

2L+2W=p

2(4)+2(8)=p

8+16=24

Answer:

length = 8 in.; width = 4 in

Step-by-step explanation:

58 is 16% of what number

Answers

16% -------- 58

100% ........ x

Cross multiply

100*58 = 16x

5800 = 16x

x= 5800/16

x = 363

I hope that's help !
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