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zzz [600]
2 years ago
8

What is 9 squared...................

Mathematics
1 answer:
Irina-Kira [14]2 years ago
5 0

Answer:

81

Step-by-step explanation:

[character limit thing]

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Eve paid $1.12 for dozen eggs at store. determine cost of 3 eggs.
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6 0
2 years ago
The average of your first 6 tests is 82. If your test average after your seventh test is an 80.5, what did you score on the seve
mart [117]
So average is  of the first 6 tests is 82   well that means 

(test1 + test2+ test3+ test4 + test5+test6)/6 = 82

so now let do some cross multiplliying 

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now lets see if we can find that 7th test score

(test1 + test2 + test3 + test4 + test5 +test6 + test7)/7 = 80.5

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(492 + test7 )/7 = 80.5

test7 = (80.5*7)-492 = 71.5 



7 0
3 years ago
I need the x intercepts for (x+3)(x + 7) = 0
Scrat [10]

Answer:

-3, -7

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either x + 3 = 0 --> x = -3

or x + 7 = 0 --> x = -7

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2 years ago
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