allureohicks allureohicks

21-09-2021
Mathematics

contestada

1. Evaluate the expression -6.3a +2(a - b) for a = -2 and b = 1.1.

0 12.6

10.8

18.8

6.4

Respuesta :

jcherry99 jcherry99

21-09-2021

Answer:

D or 6.4

Step-by-step explanation:

-6.3*(-2) + 2(-2 - 1.1)

- 6.3 * - 2 = 12.6 Notice that the two minus signs become a +

(-2 - 1.1)= (-3.1) Multiply -3.1 * 2 = - 6.2

12.6 - 6.2 = 6.4

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