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tamaranim1 [39]
3 years ago
10

Can someone please help me with this ( -1) + (+8)

Mathematics
2 answers:
kupik [55]3 years ago
8 0

Answer:

<h2>(-1) + (+8) = 7</h2>

Step-by-step explanation:

(+)(+) = (+)

(-)(+) = (+)(-) = (-)

(-)(-) = (+)

--------------------------------------------

(-1) + (+8)= (-1) + 8      <em>use the commutative property a + b = b + a</em>

= 8 + (-1) = 8 - 1 = 7

vodka [1.7K]3 years ago
3 0

Answer:

7

it’s kind of like 8-1 but it’s 8+(-1)

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This is important please help
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Answer: C

<u>Step-by-step explanation:</u>

∑ 8(\frac{7}{3})⁽ⁿ⁻¹⁾ from n = 1 to n = 5

n = 1 → 8(\frac{7}{3})⁽¹⁻¹⁾

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n = 2 → 8(\frac{7}{3})⁽²⁻¹⁾

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