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MariettaO [177]
3 years ago
14

Explain why an equation is extraneous. Explain why an equation is non extraneous.

Mathematics
1 answer:
TEA [102]3 years ago
5 0

Answer:

I hope it's helpful.

Step-by-step explanation:

In mathematics, an extraneous solution (or spurious solution) is a solution, such as that to an equation, that emerges from the process of solving the problem but is not a valid solution to the problem.

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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
Selena bought a TV for her bedroom. The original price was $299.99, but she bought it on sale for 30% off. Selena also paid 15%
ycow [4]
I believe $241.50 would be your answer
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3 years ago
Select all expressions that represent the area of the given triangle
Mice21 [21]

Answer:

A=1/2(12x16)

Step-by-step explanation:

because it's the area of the square divided by two

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3 years ago
Hey! i’ll give brainliest please help!
liq [111]
I think it’s the last one
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3 years ago
Can someone answer this
Lunna [17]

Answer:

m =  \boxed{1} \:  \: c =  \boxed{4}

Step-by-step explanation:

y = x + 4 \\ equating \: it \: with \\ y = mx + c \\  m =  \boxed{1} \:  \: c =  \boxed{4}

8 0
3 years ago
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