israelshamariah israelshamariah

03-02-2020
Mathematics

contestada

1. Evaluate the expression for 0.8 and z=3.5
4y-z=

2. Evaluate the following expression for x=-3, y=5 and z=-1 3x-5y-9z

Respuesta :

meredith48034 meredith48034

03-02-2020

Answer:

1. 4(.8)-3.5= 3.2-3.5= -0.3

2. 3(3)--5(5)-9(-1)= 9 - 25 + 9 = 18 - 25= -7

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