Evaluate. (15x)^3 - y if x=0.2 and y=1.3
(15X)^3 - Y. X = 0.2, Y = 1.3.
(15*0.2)^3 - 1.3 = 3^3 - 1.3 = 27 - 1.3
= 25.7.
To evaluate the expression (15x)^3 - y with x=0.2 and y=1.3, follow these steps:
Step 1: Substitute the given values of x and y into the expression.
(15 * 0.2)^3 - 1.3
Step 2: Perform the calculation inside parentheses first.
(3)^3 - 1.3
Step 3: Evaluate the exponentiation.
27 - 1.3
Step 4: Subtract the value of y from the result.
25.7
Therefore, when x=0.2 and y=1.3, (15x)^3 - y equals 25.7.