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stiv31 [10]
2 years ago
6

Please answer!!!! Express (x + 9)2 as a trinomial in standard form.

Mathematics
1 answer:
Ghella [55]2 years ago
4 0

Answer:

x² +18x +81

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(x+9)² = x²+9²+2*x*9= x² +18x +81

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4 0
3 years ago
A theater has 358 seats on the main level and 122 seats in the balcony.There are 6 shows each day.What is the greatest number of
Alika [10]
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3 years ago
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What is bigger 3/4 or 3/8
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Can anybody please help me out with this question I would really appreciate it so much. Please and thank you .
PolarNik [594]

(7x+2)° = (9x–8)°

=>7x –9x = –8–2

=> –2x = –10

=> x = 10/2

=> x = 5

<ADB = (7x+2)°

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= 74°

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