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ladessa [460]
3 years ago
9

What is the coefficient of the second term of the tribomial (3x+3)^2=9x^2+bc+9

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

18

Step-by-step explanation:

To find the second term of the coefficient, multiply out the left hand side of the equation.

(3x+ 3)^2 = 9x^2 + bc + 9

(3x+3)(3x+3)\\9x^2 + 9x + 9x + 9\\9x^ 2+ 18x + 9

The value of b is 18.

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x ≤ 27/5

Step-by-step explanation:

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3 years ago
Jessica needs 1/2 cup of sugar to make 1/4 of her cookie recipe. How much sugar does she need to make the entire recipe?
Vinil7 [7]

Answer:

2 cups

Step-by-step explanation:

If 1/2 makes 1/4 of the recipe, all you have to do is times 1/2 by 4:)

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3 years ago
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3 0
3 years ago
If m(x)=x 5/x-1 and n(x) = x – 3, which function has the same domain as (m*n)(x)
Tatiana [17]
<span><u><em>Answer:</em></u>
m(x) has the same domain as (m*n)(x)

<u><em>Explanation:</em></u>
<u>1- For m(x):</u>
m(x) is a fraction. This means that the <u>denominator cannot be zero</u>, otherwise, the fraction would be undefined.
The denominator of m(x) would be zero at x = 1.
This means that the <u>domain of m(x) can be any real number except 1</u>

<u>2- For n(x):</u>
The value of x in n(x) can be any number. This is because there is no value that would make n(x) undefined.
This means that the <u>domain of n(x) is all real numbers</u>

<u>3- For (m*n)(x):</u>
(m*n)(x) = m(x) * n(x) = </span>\frac{x-5}{x-1} *(x-3) =  \frac{(x-5)(x-3)}{(x-1)}
<span>
We can note that the product is also a fraction. This means that the <u>denominator cannot be zero</u>.
The denominator here will be zero at x = 1.
This means that the <u>domain of (m*n)(x) is all real numbers except 1</u>.
<u>This is the same as the domain of m(x)</u>

Hope this helps :)</span>
8 0
4 years ago
1+1=<br> Easy question :&gt;
Veseljchak [2.6K]

1+1= 2

Big brain >:3 Ty for the points tho ^^

3 0
3 years ago
Read 2 more answers
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