To convert a capacity of 8.7 gallons to quarts, which ratio could you multiply by? remember that 1 gallon = 4 quarts.

Mathematics

1 answer:

Papessa [141]3 years ago

3 0

Using the factor label method, you would set up your ratio like so: $8.7 gall * \frac{4 qts}{1 gall}$

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Select the correct product.

vfiekz [6]

The correct answer is: [A]: " 2x³ + 7x² + 12x − 8 " .
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Explanation:
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Given:
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" (x² + 4x + 8) (2x − 1) " ; Find the product:

↔ " (2x − 1) (x² + 4x + 8) " ;
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Note: " (a + b) (c + d + e) = ab + ad + ae + bc + bd + ae " .
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→ " (2x − 1) (x² + 4x + 8) =

(2x * x²) + (2x * 4x) + (2x *8) + (-1 * x²) + (-1 * 4x) + (-1 * 8) ;

= 2x³ + 8x² + 16x + (-1x²) + (-4x) + (-8) ;

= 2x³ + 8x² + 16x − x² − 4x − 8) ;

→ Combine the "like terms" :

+ 8x² − x² = + 7x² ;

+ 16x − 4x = + 12x ;
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And rewrite the expression:
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→ " 2x³ + 7x² + 12x − 8 " ;

→ which is: Answer choice: [A]: " 2x³ + 7x² + 12x − 8 " .
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