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zysi [14]
3 years ago
10

Number 4 I need help on please and thank you

Mathematics
1 answer:
Ivan3 years ago
6 0
Y = -1/2x + 4
(((: whatp
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3 years ago
How many extraneous solutions does the equation below have? StartFraction 9 Over n squared 1 EndFraction = StartFraction n 3 Ove
BigorU [14]

The equation has one extraneous solution which is n ≈ 2.38450287.

Given that,

The equation;

\dfrac{9}{n^2+1} =\dfrac{n+3}{4}

We have to find,

How many extraneous solutions does the equation?

According to the question,

An extraneous solution is a solution value of the variable in the equations, that is found by solving the given equation algebraically but it is not a solution of the given equation.

To solve the equation cross multiplication process is applied following all the steps given below.

\rm \dfrac{9}{n^2+1} =\dfrac{n+3}{4}\\\\9 (4) = (n+3) (n^2+1)\\\\36 = n(n^2+1) + 3 (n^2+1)\\\\36 = n^3+ n + 3n^2+3\\\\n^3+ n + 3n^2+3 - 36=0\\\\n^3+ 3n^2+n -33=0\\

The roots (zeros) are the  x  values where the graph intersects the x-axis. To find the roots (zeros), replace  y

with  0  and solve for  x. The graph of the equation is attached.

n  ≈  2.38450287

Hence, The equation has one extraneous solution which is n  ≈  2.38450287

For more information refer to the link.

brainly.com/question/15070282

5 0
2 years ago
What number would represent 6.9 meters below sea level? *
rewona [7]

Answer:

Step-by-step explanation:

Its actually -6.9

6 0
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What is the point slope form of a line that has a slope of 3 and passes through point (1,4)?
ser-zykov [4K]
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A pen costs p cents. Write down a formula for the cost, C cents, for n pens.​
Aleks [24]

Answer:

n x p = c

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n is the amount of pens so we time it by the cost of 1 pen which is p and the final answer is c as the cost of all the pen.

6 0
2 years ago
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