Which numbers are irrational

1 answer:

6 0

"An irrational number can't be expressed as a ratio between 2 numbers, it can't be written as a simple fraction because there is not a finite number of numbers when written as a decimal. The numbers in the decimal would go on forever, without repeating.

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The perimeter of a square in which A=36in2

cupoosta [38]

Answer:

24 inches

Step-by-step explanation:

The area of the square is 36 in2. The area of square can be represented as side x side or side squared. So, the sides must be 6 inches in length since 6x6 is 36. If one side is 6, 4 sides are 24.

6 0

3 years ago

Solve for x and y in the system of equation y=x²-4x 2x-y=2 I'll mark brainliest

Goryan [66]

Step-by-step explanation:

$y = {x}^{2} - 4x \\ y = x(x - 4) - - - (a) \\ 2x - y = 2 \\ y = 2x - 2 \\ y = 2(x - 2) - - - (b) \\ (a) = (b) : \\ x(x - 4) = 2(x - 2) \\ {x}^{2} - 4x = 2x - 2 \\ {x}^{2} - 6x + 2 = 0 \\ x = 5.6 \: \: and \: \: 0.4 \\ y = 2(5.6 - 2) \: \: and \: \: 2(0.4 - 2) \\ y = 7.2 \: \: and \: \: - 3.2$

7 0

3 years ago

This is urgent what is the answer to this hint: pemdas(45-5)÷5+6²

Artemon [7]

Answer:

$(45 - 5) \div 5 + {6}^{2} \\ 40 \div 5 + {6}^{2} \\ 8 + {6}^{2} \\ 8 + 36 \\ 44 \: answer$

3 0

2 years ago

How do you simplify (√(3x+1) -1)^2 ?

Bess [88]

Well not 100% about this math problem however you can probably simplify on http://m.graph-inequality.com/simplify-expression

4 0

3 years ago

What is the only solution of 2x2 + 8x = x2 – 16?

posledela

Simplify and solve quadratic equation:

$2x^2+8x=x^2-16 => x^2+8x+16 => (x+4)^2=16 => x={-4,-4}$
So numerically the only solution is x=-4.

However, mathematically, there are two solutions, {-4,-4}, or x=4,multiplicity 2.

8 0

3 years ago

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