Question

What is the value of this expression below when r= 144, d=-82, and y =-2?
√r +1/2(d-y)

Answer 1

√r +1/2(d-y)=12−40=−28

The expression
`√(r) +1/2(d-y)` involves substituting the given values r=144, d=−82, and y=−2:

√144 + 1/2(−82−(−2))

First, evaluate the square root of 144, which is 12. Then, compute the expression 1/2(−82−(−2)), which simplifies to 1/2(−80) or −40. Finally, add these results together:

12+(−40)=−28

Therefore, when r=144, d=−82, and y=−2, the value of the given expression is −28.