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Serhud [2]
3 years ago
5

Expand and simplify (2x + 5)^2

Mathematics
2 answers:
Vilka [71]3 years ago
7 0

Answer: 4x^2 + 20x + 25

poizon [28]3 years ago
7 0
4x^2+20x+25

Explanation: Use the binomial expansion theorem to find and simplify each term.

(Hope this helps!!)
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2 years ago
Jacob's piggy bank has 18 quarters, 20 dimes, 24 nickels, and 43 pennies. He
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In △ABC,a=34, b=18, and c=17. Find m∠A.<br><br> A. 14.1<br> B. 132.6<br> C. 152.5<br> D. 101.5
igomit [66]

Answer:

C.  m < A = 152.5 degrees.

Step-by-step explanation:

Use the Cosine Rule:

a^2 = b^2 + c^2 - 2.b.c.cos A

34^2 = 18^2 + 17^2 - 2.18.17 cos A

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cos A = -0.88725

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WINSTONCH [101]

Answer:

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2 years ago
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Dafna1 [17]

Answer:

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Step-by-step explanation:

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