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Lunna [17]
3 years ago
15

Explain when each method(graphing, substitution,linear combinations) is a good method to find a solution to a system of equation

s.
Mathematics
2 answers:
ikadub [295]3 years ago
8 0
Graphing is good to graph a line. Substitution is good because you have to subtitute the value whichis easy and elimination is good just to find oone variable first and the other variable
PSYCHO15rus [73]3 years ago
6 0
Graphing is a good method when you have small integers or fractions as your slope.
Substitution is a good method when you have two equations, and when one of the coefficient of the variables is one.
Linear combinations is a good method when you have the same coefficient for the same variable in 2 different equations.
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nordsb [41]

Answer:-32

Step-by-step explanation:

6[4-9.47

(6)(-9.47)

=-32.82

Hope I helped

7 0
4 years ago
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What number has to fill in the blank to make this a perfect square trinomial: 9x^2 + ___+ 144
g100num [7]

The number that has to fill the blank to make the trinomial a <em>perfect square</em> is 72x

<h3>Perfect square trinomial </h3>

From the question, we are to determine the number that makes the given trinomial a perfect square

The given trinomial is

9x² + ___+ 144

For any given trinomial ax² + bx + c, the trinomial is a perfect square if

b² = 4ac

In given trinomial,

a = 9, c = 144, b = ?

Now, we will determine the value of b

Putting the values into the equation,

b² = 4ac

b² = 4×9×144

b² = 5184

b = √5184

b = 72

Thus,

The trinomial will become 9x² + 72x+ 144

Hence, the number that has to fill the blank to make the trinomial a <em>perfect square</em> is 72x

Learn more on Perfect square trinomial here: brainly.com/question/12306247

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6 0
2 years ago
Please help!
Arlecino [84]

Answer:

About $4425.69

Step-by-step explanation:

Input the values into the equation to get: $4253(1+0.01)^4=

$4425.69(when rounding to the nearest cent)

8 0
3 years ago
Sam’s Swimming Pool Cleaning has an annual gross profit of $88,400. Sam charges $25 per week for each of his customers for 52 we
Arte-miy333 [17]

Answer:

C. 68 is your answer.

Step-by-step explanation:

What you do is you take 25 and 52 and times them together.

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You will take 1,300 and divide it by 88,400 to get your answer.

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C. 68 is your answer.

7 0
4 years ago
What is the number ten written in base 2?
Nesterboy [21]
10001 should be the answer if not i’m special
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3 years ago
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