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Find the value of the expression below for r = 4 and t = 2.
t3 – r + 20 ÷ r
(1 point)
9
72
6
40
To find the value of the expression when r = 4 and t = 2, substitute these values into the expression:
t3 – r + 20 ÷ r
(2)3 – 4 + 20 ÷ 4
8 – 4 + 20 ÷ 4
8 – 4 + 5
4 + 5
9
Therefore, the value of the expression when r = 4 and t = 2 is 9.
To find the value of the expression t^3 - r + 20/r for r = 4 and t = 2, we substitute the given values into the expression.
Substituting r = 4 and t = 2, we have:
t^3 - r + 20/r
2^3 - 4 + 20/4
8 - 4 + 20/4
8 - 4 + 5
Now we simplify the expression:
8 - 4 + 5
4 + 5
9
Therefore, the value of the expression for r = 4 and t = 2 is 9.