3 years ago

I need help with 2. And 4.

Mathematics

1 answer:

lisov135 [29]3 years ago

4 0

On number 4 George lives farther

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Bezzdna [24]

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3 years ago

Evaluate the following expression. −8 × (−10) −7× 1/−1

GaryK [48]

Answer:

Step-by-step explanation:

$-8\left(-10\right)-7 \times \frac{1}{-1}=87\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=8\times \:10-7\times \frac{1}{-1}\\\\8\times \:10=80\\\\7\times \frac{1}{-1}=-7\\\\=80-\left(-7\right)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=80+7\\\\=87$