3 years ago

Is 16 over 5 rational or irrational or not a real number

Mathematics

2 answers:

Semenov [28]3 years ago

8 0

It's rational. When you simplify 16^(1/2) / 5, you get 4/5. Therefore, it's rational.

kotykmax [81]3 years ago

7 0

16/5= 3 1/5
Rational
Irrational numbers never end and can't be written as a fraction. Ex. pi

You might be interested in

A square field has an area of 479 ft^2. What is the approximate length of a side of the field? Give your answer to the nearest f

jeyben [28]

The answer will be 22 square ft. hope it helps

4 0

3 years ago

Which of the following expressions can be used to complete the equation below Secx / 1+cot^2x=

svlad2 [7]

Answer: D) Tan x sin x

<u>Step-by-step explanation:</u>

$\dfrac{sec}{1+cot^2}\\\\\\=\dfrac{1}{cos}\cdot \dfrac{1}{1+cot^2}\\\\\\=\dfrac{1}{cos}\cdot \dfrac{1}{1+(\frac{cos}{sin})^2}\\\\\\=\dfrac{1}{cos}\cdot \dfrac{1}{(\frac{sin^2}{sin^2})+(\frac{cos^2}{sin^2})}\\\\\\=\dfrac{1}{cos}\cdot \dfrac{sin^2}{sin^2+cos^2}\\\\\\=\dfrac{1}{cos}\cdot \dfrac{sin^2}{1}\\\\\\=\dfrac{sin\cdot sin}{cos\cdot 1}\\\\\\=\boxed{tan\cdot sin}$