Seudónimo Seudónimo
  • 11-06-2019
  • Mathematics
contestada

Evaluate 10x2y-2 for x = -1 and y = -2.
5/8

2 1/2

10(2)^0

40

Respuesta :

calculista
calculista calculista
  • 12-06-2019

Answer:

[tex]2\frac{1}{2}[/tex]

Step-by-step explanation:

we have

[tex]10x^{2} y^{-2}[/tex]

we know that

[tex]10x^{2} y^{-2}=10\frac{x^{2}}{y^{2}}[/tex]

Substitute the value of x=-1 and y=-2 in the expression

[tex]10\frac{(-1)^{2}}{(-2)^{2}}[/tex]

[tex]10\frac{1}{4}[/tex]

[tex]\frac{10}{4}[/tex]

Simplify

[tex]\frac{5}{2}=2\frac{1}{2}[/tex]

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