Answer: Fourth Choice. 1.4
Step-by-step explanation:
<u>Concept:</u>
Here, we need to understand the idea of evaluation.
When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.
<u>Solve:</u>
Given
(x² - 4) / 3x
x = 5
Substitute the value of x
[(5)² - 4) / 3(5)
Simplify exponents
(25 - 4) / 3(5)
Simplify numerator with subtraction and denominator with multiplication
21 / 15
Simplify by division
7/5 = 1.4
Hope this helps!! :)
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