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Ray Of Light [21]
3 years ago
11

Write (3x + 2)2 in expanded form using the polynomial identity (x + y)2 = x2 + 2xy + y2.

Mathematics
1 answer:
Jet001 [13]3 years ago
3 0
(3x)^2 + 12x + 4


You're welcome.

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max2010maxim [7]

Answer:

c

Step-by-step explanation:

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3 0
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melissa bought a cake that cost $75 the sales tax rate is ten percent what is the total amount she paid for the cake
Nady [450]
Multiply, because the total price is ten percent more than the original:                            $75 x 1.1 = <span>$82.5</span>
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3 years ago
Annie and Jill went to dinner. The sum of their two bills was $80. The difference was $10. Jill spent more money than Annie. How
mart [117]
Jill spend $45
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5 0
3 years ago
The difference of two numbers is 16 and the sum of their squares is 130. What are the numbers.
Korvikt [17]
x - y = 16
x^2 + x^2 = 130

----------------
x^2 - y^2 = 256
+(x^2 + y^2 = 130)
2x^2 = 386
x^2 = 193
x = <span>13.892 (3DP)
----
</span>x - y = 16
13.892 - y = 16
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y = -2.108
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4 0
3 years ago
A book sold 31,700 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How
elena-14-01-66 [18.8K]

For this case we propose a rule of three:

31700 ------------> 8.8%

x ----------------------> 100%

Where "x" represents the number of copies sold to date.

x = \frac {100 * 31700} {8.8}\\x = \frac {3170000} {8.8}\\x = 360,227.273

Thus, to date 360,227 copies of the book have been sold.

ANswer:

To date, 360,227 copies of the book have been sold.

8 0
3 years ago
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