Bunuel wrote:
If x = -5/8 and y = -1/2, what is the value of the expression -2x – y^2?
A) -3/2
B) -1
C) 1
D) 3/2
E) 7/4
Replacing x with \(x=-\cfrac { 5 }{ 8 }\) and y with\(y=-\cfrac { 1 }{ 2 }\) in the expression given:
\(-2x-{ y }^{ 2 }=\\ -2\left( -\cfrac { 5 }{ 8 } \right) -{ \left( -\cfrac { 1 }{ 2 } \right) }^{ 2 }=\\ \cfrac { 5 }{ 4 } -\cfrac { 1 }{ 4 } =\\ \cfrac { 4 }{ 4 } =\\ 1\)
_________________
"When the going gets tough, the tough gets going!"
|Welcoming tips/suggestions/advices (you name it) to help me achieve a 600|