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kolezko [41]
2 years ago
8

I need help with these! Thanks!!

Mathematics
1 answer:
spin [16.1K]2 years ago
8 0
-2[9 - (x + 7)]
-2[9 - x - 7]
-2[-x + 9 - 7]
-2[-x + 2]
-2[-x] - 2[2]
2x - 4

The answer is C.
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What is 3 1/8 estimated 1 2/5 estimated
ehidna [41]

Answer:

3

1

if your estimating to whole numbers the 3 1/8 is 3 and 1 2/5 is 1

Step-by-step explanation:

4 0
2 years ago
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4a² + 8a -100 Factor
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This is not factorable. It can be easily tested using the radicand expression of the quadratic equation. (Perfect square= Factorable, No Perfect= Not Factorable.)
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3 years ago
In Aunt Melly's attics there are also spiders and ants, the total of 136 legs and 20 heads. If a spider has 8 legs and an ant ha
anzhelika [568]

Answer:

Spiders=8

Ants=12

Step-by-step explanation:

Spider(s)=8 legs

Ants(a)=6 legs

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From (2)

s=20-a

Substitute 20-a into (1)

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8(20-a)+6a=136

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a= -24/-2

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3 0
3 years ago
Solve the system of linear equations by eliminations x+5y=-2; 5x+y=14
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I’ve attached my work….
Hope it helps!

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2 years ago
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given
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3 0
3 years ago
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