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Pepsi [2]
3 years ago
14

Carter is solving for x by the process of completing the square for the following

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

The number that goes in place of the question mark is 2.

Step-by-step explanation:

Let's solve it!

3x² + 12x - 24 = 0

First we can factor 3 out of each term:

x² + 4x - 8 = 0

Now we'll add 12 to both sides to complete the square:

x² + 4x + 4 = 12

And finish it off:

(x + 2)² = 12

So the answer to the question is 2

Bonus:

We can also now solve this for x:

(x + 2)² = 12

x = √12 - 2

x = 2√3 - 2

x ≈ 2 × ±1.732 - 2

x ≈ 1.464, -5.464

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Answer:

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Step-by-step explanation:

3x-10+5m+6x+7

3x+6x+5m-10+7

9x+5m-3

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3 years ago
Please help me with the question below
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Answer:

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Step-by-step explanation:

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Read 2 more answers
Write an algebraic expression for each statement:
Andrei [34K]

For the given sentences, the algebraic expressions are:

a) N = 110*c - 300

b) N = 12*b

<h3>How to get the algebraic expressions?</h3>

For the first statement:

A 3-digit number, where the tens digit is c, can be written as:

N = 100*a + 10*c + b

Then the hundreds digit is a, and here we know that is 3 less than the tens digit, then:

a = c - 3

The ones digit is b, here we know that it is 0, then b = 0.

Replacing that in our number we get:

N = 100*(c - 3) + 10*c = 110*c - 300

N = 110*c - 300

That is the algebraic expression.

b) A two-digit number can be written as:

N = b*10 + a

Where b is the tens digit and a is the ones digit.

Here we know that the units digit is twice as bit as the tens digit, then:

a = 2b

Replacing that we get:

N = b*10 + a = b*10 + 2b = 12*b

N = 12*b

That is the algebraic expression.

If you want to learn more about algebraic expressions:

brainly.com/question/4541471

#SPJ1

4 0
2 years ago
4. Ronnie has an after-school job at an animal shelter. She notices that at one meal, 3
Wittaler [7]

Answer:

1

Step-by-step explanation:

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5 0
2 years ago
Help me please!!!!!!
olya-2409 [2.1K]
3276800/8 = 409600 (how many bacteria in an hour)

Then just multiply that number by the amount of hours you want to solve for 

9 hours = 3686400
10 Hours = 4096000
6 0
3 years ago
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