Question

What is the value of y in the formula shown when x = 4/5?

y = 4/x + √x + 0.2 - 5x

Answer 1

When x = 4/5, the value of y in the formula is approximately 1.094.

Step-by-step explanation:

In order to find the value of y in the given formula when x = 4/5, we can substitute the value of x into the formula and perform the necessary calculations.

First, substitute x = 4/5 into the formula:

y = 4/(4/5) + √(4/5) + 0.2 - 5(4/5)

Simplify the expression:

y = 5 + √(4/5) + 0.2 - 4

Calculate the square root of 4/5:

y = 5 + √(0.8) + 0.2 - 4

Approximate the value of √(0.8) to a decimal:

y ≈ 5 + 0.894 + 0.2 - 4

Simplify further:

y ≈ 1.094

So, when x = 4/5, the value of y in the given formula is approximately 1.094.