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PSYCHO15rus [73]
3 years ago
10

Which expressions are equivalent to 5 ( -2k - 3 ) + 2k?

Mathematics
1 answer:
Lerok [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

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Help me with this question thingy plas
pochemuha

ANSWER:

x = -3

Step-by-step explanation:

55+54+x+74=180

109+x+74=180

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8 0
2 years ago
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Could you explain why the answer 125 was supposed to be negative while my answer 81 was correct?
hichkok12 [17]

Answer:

Step-by-step explanation:

Realize what (-5)^3 means

(-5)(-5)(-5)

25(-5)

-125

meanwhile

(-9)^2 is

(-9)(-9)

81

Basically a negative times a negative is always positive, but when a negative number is cubed (or raised to any odd exponent for that matter) the product will be negative.

5 0
3 years ago
Find the length of the missing side of the perimeter is 30ft
Svetach [21]

Answer:

5ft

Step-by-step explanation:

7 + 10 + 8 = 25

subtract that form 30

25-30

Thane you get

5

so the answer is

5!!!!!

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4 0
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