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Sveta_85 [38]
3 years ago
9

Combing like terms -4(7 + 3a) -6a(4a - 5)

Mathematics
2 answers:
lianna [129]3 years ago
7 0

Answer:

-4(7 + 3a) - 6a(4a - 5) = <em><u>−24</u></em>x^{2}<em><u>+18a−28</u></em>

Step-by-step explanation:

e-lub [12.9K]3 years ago
3 0

Answer:

24a^2-18a+28

Step-by-step explanation:

-4(7 + 3a) -6a(4a - 5)

-28-12a-24a^2+30a

-24a^2+18a-28

24a^2-18a+28

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Find the measure of unknown angle​
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Answer:

a = 85° , b = 30° , c = 65°

Step-by-step explanation:

∠ a and 85° are alternate angles and are congruent , so

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a, b and c lie on a straight line and sum to 180° , that is

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3 years ago
47 hundredths as a fraction and as a decimal number
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Answer:

47/100 and 0.47

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