Question

find the value of the expression 5 + s + t^u for s = 7, t = 1, and u = 2.

Explanation:

Step1: Substitute the values

Substitute $s = 7$, $t = 1$, and $u = 2$ into the expression $5 + s+t^{u}$. We get $5+7 + 1^{2}$.

Step2: Calculate the exponent

Calculate $1^{2}$. Since any non - zero number to the power of 2 is itself multiplied by itself, $1^{2}=1\times1 = 1$. So the expression becomes $5 + 7+1$.

Step3: Perform addition

Add the numbers together: $5+7 + 1=(5 + 7)+1=12 + 1=13$.

Answer:

13