Final answer:
Option A). After substituting t = 4 into the expression, the correct value of 18 + t^2 - 5 * 3 is determined to be 19, which does not match any of the provided options.
Step-by-step explanation:
To find the value of 18 + t^2 - 5 * 3 when t = 4, we will substitute the value of t into the expression and then simplify.
- First, replace t with 4 in the expression: 18 + (4)^2 - 5 * 3.
- Next, square the value of t: 18 + 16 - 5 * 3.
- Then, perform the multiplication: 18 + 16 - 15.
- Finally, add and subtract the numbers: 34 - 15 = 19.
The result is not one of the provided options. It appears there was a mistake in the original expression, or in the provided options. The correct answer for the given expression is 19.
Correct question : What is the value of 18 + t^2 - 5 * 3 when t = 4?
a) 19
b) 22
c) 32
d) 38