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3 years ago

10

PLEASE HELPPP!!!

1 answer:

algol [13]3 years ago

5 0

Answer:

$-32x^5-400x^4-2000x^3-5000x^2-6250x-3124$

Step-by-step explanation:

So what we should do is first expand. What I did was I did it one step at a time, starting with (2x+5)(2x+5). This gave me $4x^2+20x+25$ . I then continued to do this, until I got $32x^5+400x^4+2000x^3+5000x^2+6250x+3125$ . Then you asked me what this would be subtracted from 1. So, what I did was set it so that it would follow this rule, making it $1-(32x^5+400x^4+2000x^3+5000x^2+6250x+3125)$ .

After this, I just simplified.

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Emma's final grade in her math class is the average (mean) of her 5 chapter tests she took throughout the year. If she received

NikAS [45]

Answer:

Step-by-step explanation:

The mean (or average) of a set of numbers can be found with the following formula:

$Mean = \frac{A_{1} + A_{2} + ... + A_{N}}{N}$

For this problem, we have five numbers, so we add them together and divide by 5:

$Mean = \frac{92 + 85 + 78 + 97 + 88}{5}$

$Mean = \frac{440}{5}$

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3 years ago

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Zielflug [23.3K]

2moles of NaCl produced by 2 moles of NaClO_3
Let required moles be x .

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3 years ago

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What integer is equivalent to 9 and 3 halves

sweet [91]

Answer:

6 is the integer which is equivalent to 9 and 3 halves

Step-by-step explanation:

we have to find the integer which is equivalent to 9 and 3 halves

Rule of halves means the restatement of meaning of median. Therefore, we have to find the median of these two integers 9 and 3.

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7 0

3 years ago

18. You are standing beside the Colorado River, 400 feet

Veseljchak [2.6K]

<h3>Answer: B. 781.6 feet approximately</h3>

=======================================================

Work Shown:

The horizontal portion is 400+166 = 566 feet. Label this as 'a', so a = 566. The vertical side is unknown, so b = x. The hypotenuse is c = 965

Use the pythagorean theorem

a^2+b^2 = c^2

566^2+x^2 = 965^2

x^2 = 965^2 - 566^2

x = sqrt( 965^2 - 566^2 )

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6 0

3 years ago

Did I set this up right?

VashaNatasha [74]

Well if you combine the 3x and the other x it'll be perfect.

hope this helped you sweetie :)

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3 years ago

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