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wolverine [178]
1 year ago
10

(3x+1)^2-2(3x+1)(3x+5)^2+(3x+5)^2 ​

Mathematics
1 answer:
Savatey [412]1 year ago
6 0

Answer:

soln,

write the question

=9x^2+1-6x-2×9x^2+25+9x^2+25

=9x^2+1-6x-18x^2+25+9x^2+25

=9x^2-18x^2+9x^2+1+25+25-6x

=51-6x

if(3x+1)^2 mean that (3x+1)has power of 2 and u don't have to use the formula this is the answer

Step-by-step explanation:

it's just BODMAS method

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What is the result of adding these two equations?
timofeeve [1]

Answer:

the result of adding these two equations is

3x = 14

Step-by-step explanation:

We are given two equations

5x − y  = 6          eq. 1

−2x + y = 8        eq. 2

Add the like terms together

5x - 2x = 3x

− y + y = 0

6 + 8 = 14

So the result of adding these equations is

3x + 0 = 14

3x = 14

Bonus:

The value of x is

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6 0
3 years ago
4. Which of the following indicates the multiplication property of equality when solving Vz= 5?
tiny-mole [99]

Answer:

D. 21.

Step-by-step explanation:

The general form of the equation of a circle is:

(x - a)^2 + (y - b)^2 = r^2  where r is the radius.

Comparing:

(x + 5)^2 + (y + 7)^2 = 21^2

So r^2 = 21^2

making r = √21^2

= 21.

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3 0
3 years ago
if a bag contains 16 red ,4yellow,20blue,8white balloons, what is the part-to-whole ratio of red balloons to all balloons
TEA [102]
Its 16/48 i hope this helps
5 0
2 years ago
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Answer:

$62

Step-by-step explanation:

hope this helped!

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6 0
2 years ago
A small bottle of water holds 7 ounces of water. How many ounces of water do 9 bottles hold?
White raven [17]

Step 1

Given;

A\text{ small bottle of water holds 7 ounces of water}

Required; How many ounces of water do 9 bottles hold?

Step 2

To do this we will use the ratio;

\frac{1\text{ bottle}}{9\text{ bottles}}=\frac{7\text{ ounces}}{x}\begin{gathered} x=7(9) \\ x=63\text{ ounces} \end{gathered}

Answer;

9\text{ bottles of water holds 63 ounces}

3 0
1 year ago
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