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kvasek [131]
4 years ago
8

Is xsquare+1/xsquare equal5 is quadratic or not

Mathematics
1 answer:
MAXImum [283]4 years ago
5 0

Answer:

Yes, it is a quadratic equation.

Step-by-step explanation:

<em>Let's solve it to make it a quadratic equation:</em>

=> \frac{x^2+1}{x^2} =5

=> x²+1 = 5x²

=> 5x²-x²-1 = 0

=> 4x²-1 = 0

<em>Comparing it with the standard form of quadratic equation i.e. </em>

ax^2+bx+c = 0

So, we get

a = 4 , b = 0 and c = -1

<u><em>So, yes. It is a quadratic equation and it is a pure quadratic equation since b is equal to 0.</em></u>

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Find the first 3 iterates of the function f (x) = x - 4 when Xo = -11.
nikdorinn [45]
<h3>Answer:  Choice A</h3>

-11, -15, -19

================================================

Explanation:

Plug x = -11 into the function.

f(x) = x-4

f(-11) = -11-4

f(-11) = -15

The output -15 is now the input to set up the next iteration.

f(x) = x-4

f(-15) = -15-4

f(-15) = -19

The first three iterates are -11, -15, -19

7 0
3 years ago
X+3=12<br> show steps<br> thx
AlekseyPX

Answer:

are u serious this is the most easiest question ive ever answered but the answer is 9 because u can minus  12-3 and get 9 so x=9

Step-by-step explanation:

4 0
3 years ago
Find the taxable income of a married couple with three children, who have a combined income of $62,000.
xeze [42]

Answer :

taxable income is $30,300

Step-by-step explanation:

Given

The combine income of the husband and wife = $62,000

Number of children the couple has = 3

In order to find out the taxable income for an U.S. family, the following formula is used

taxable income = total income - exemption deduction - standard deduction

We know the exemption deduction for a married couple with three kids fixed according to the U.S. government is $19,500.

And the standard deduction for a married couple with three kids fixed according to the U.S. government is $12,200.

Therefore,

taxable income = total income - exemption deduction - standard deduction

                         = $62,000 - $19,500 - $12,200

                         = $30,300

Thus the taxable income is $30,300.

3 0
3 years ago
A class is planning a trip. The table shows the number of seats, y, based on the number of buses, x.
gtnhenbr [62]
The answer is C because if you have 1 bus that’s 35 so it would be y=35(1) then if you have 2 buses it would be y=35(2) That gets you 70 seats. :)
7 0
3 years ago
Is (x+7) a factor of f(x)= x^3-3x^2+2x-8
nikklg [1K]

Answer:

Step-by-step explanation:

Use synthetic division to answer this.  If the remainder is zero, then we can safely assume the divisor (x + 7) is a factor of the polynomial f(x)= x^3-3x^2+2x-8.

We use -7 as the divisor in synth. div.  This comes from the factor (x + 7):

-7   /    1    3     2     -8

               -7   28  -210

     -------------------------

         1      -4   30   -218

Here, the remainder is -218, not zero, so no, (x+7) is not a factor of f(x)= x^3-3x^2+2x-8.

6 0
4 years ago
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