Question

Xyz for the given values of x=4/5, y=-15, z=7/8

Answer 1

xyz = -
`(21)/(2)`

Explanation:

substitute the given values into the expression

xyz

=
`(4)/(5)` × - 15 ×
`(7)/(8)`

= - 12 ×
`(7)/(8)`

= - 3 ×
`(7)/(2)`

= -
`(21)/(2)`