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Vlad1618 [11]
3 years ago
12

What expressions are equivelent to −3(2+7)

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0

Answer:

<h2>-3(2 + 7) = -3(9) or -3(2 + 7) = (-3)(2) + (-3)(7)</h2>

Step-by-step explanation:

-3(2+7)\\\\=-3(9)\\=-27\\\\\text{use the distributive property}\ a(b+c)=ab+ac\\=(-3)(2)+(-3)(7)\\=-6-21\\=-27

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Heyy!! i need help!!
Makovka662 [10]

Answer:

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Step-by-step explanation:

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2 years ago
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If m&lt;ECD is six less than five times m&lt;BCE. and m&lt;BCD = 162°, find each measure.(Sorry bout using the wrong signs, but
tia_tia [17]

Answer:

m∠BCE = 28° and m∠ECD = 134°

Step-by-step explanation:

* Lets explain how to solve the problem

- The figure has three angles: ∠BCE , ∠ECD , and ∠BCD

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∴ m∠ECD = 5 m∠BCE - 6 ⇒ (1)

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∵ m∠ECD = 5 m∠BCE - 6

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* m∠BCE = 28° and m∠ECD = 134°

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Sholpan [36]
Sorry if its illegible, you can ask if its not clear

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