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Vesna [10]
3 years ago
8

What is the sum of x^2 - 3x + 7 and 3x^2 + 5x - 9

Mathematics
1 answer:
Dmitrij [34]3 years ago
7 0

Hey there!

The answer to your question is 4x^2+2x-2

Given:

x^2-3x+7 and 3x^2 +5x-9

First, we can start by adding like terms. The following are like terms:

x^2 and 3x^2

-3x and 5x

7 and -9

Now, we can add these pairs together, giving us:

4x^2

2x

-2

Now, add all this together, and we get our answer as:

4x^2 + 2x - 2

Have a terrificly amazing day!

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Write a pair of equivalent expressions using distributive property
bulgar [2K]
The distributive property "distributes" a number through all numbers/terms in a set of parentheses by multiplication.


EXAMPLES
Equivalent expressions are the first and last steps. The middle step just shows the work.

5(2 + 3x)= (5*2) + (5*3x)= 7 + 15x

4(2x + 4y)= (4*2x) + (4*4y)= 8x + 16y

10(4x + 5)= (10*4x) + (10*5)= 40x + 50


ANSWER:
Only one pair below is needed for your answer.

5(2 + 3x)= 7 + 15x

4(2x + 4y)= 8x + 16y

10(4x + 5)= 40x + 50


Hope this helps! :)

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Answer:

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Step-by-step explanation:

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Divide. 6 by 3/5 PLEASE LOL
qaws [65]

Answer:

6 divided by 3/5 is 10

Step-by-step explanation:

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Frank deposits 5350.00 in a savings account. The account pays an annual Interest rate of 1%. Ile makes no other deposits or with
9966 [12]

Answer:

If the account paid a <u>monthly</u> interest instead of <u>annual</u>, the answer would be $162.12

Step-by-step explanation:

<h3>PS: THIS ISN'T THE ANSWER TO THIS QUESTION BECAUSE IT STATED 'ANNUAL INTEREST' BUT I USED MONTHLY INTEREST INSTEAD. HOPE THIS HELPS SOMEONE ELSE THOUGH.</h3><h3><u>FIRST MONTH</u></h3>

Original value is $5350.00

Percentage increase(interest gained) is 1%

Total value after 1st month is equal to the Original Value + The interest

<em>$5350.00 x 0.01 </em>(0.01 = 1/100 = 1%) =<em> $53.50</em>

Do not try and do this altogether as you will get the answer wrong. Instead calculate month by month.

At the end of the <u>first month</u>, he has <em>($5350.00 + $53.50) = $5403.50</em>

<h3><u>SECOND MONTH</u></h3>

Original Value is $5403.50

Percentage increase(interest gained) is <em>still </em>1%

Total value after the 2nd month is equal to the Original Value+The interest

<em>$5403.50 x 0.01 = $54.035</em>

<u>ALWAYS</u> round off to the nearest cent before continuing.

At the end of the <u>second month</u>, he has <em>($5403.50 + $54.04) = $5457.54</em>

<h3><u>THIRD MONTH</u></h3>

Original Value is $5457.54

Percentage increase(interest gained) is 1%

Total value after the 3rd month is equal to the Original Value + The interest

<em>$5457.54 x 0.01 = $54.5754 = $54.58</em>

When rounding off, if the number is 5 or higher, add 1 to the digit before it.

At the end of the <u>third month</u>, he has <em>($5457.54 + $54.58) = $5512.12</em>

The question asks, how much interest did his money earn. If you calculated like how I did above, picking the interest should be easy.

Simply add, the first month's interest, to the second month's interest, to the third month's interest.

<em>$53.50 + $54.04 + $54.58 =  $162.12</em>

6 0
3 years ago
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