Give and example of an irrational number and explain how you know it is irrational.

Mathematics

2 answers:

cupoosta [38]2 years ago

6 0

Answer:

sqrt(2) it cannot be expressed as a fraction and is not repeating

Step-by-step explanation:

S_A_V [24]2 years ago

6 0

Answer:

Pi is irrational.

Step-by-step explanation:

3.14...

The "..." symbol indicates that a number is 100% irrational.

Hope it helps! ✶ ✶✶

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If f(x) = 4x-3, which of the following is the inverse of f(x)?

GalinKa [24]

Answer:

$\huge\boxed{f^{-1}(x)=\dfrac{x+3}{4}=\dfrac{1}{4}x+\dfrac{3}{4}}$

Step-by-step explanation:

$f(x)=4x-3\to y=4x-3\\\\\text{exchange}\ x\ \text{to}\ y\ \text{and vice versa}\\\\x=4y-3\\\\\text{solve for}\ y\\\\4y-3=x\qquad|\text{add 3 to both sides}\\\\4y-3+3=x+3\\\\4y=x+3\qquad|\text{divide both sides by 4}\\\\\dfrac{4y}{4}=\dfrac{x+3}{4}\\\\y=\dfrac{x+3}{4}\to y=\dfrac{1}{4}x+\dfrac{3}{4}$