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Rom4ik [11]
3 years ago
5

Is the following always, sometimes, or never true? 14+3x-7=7x+7-4x a.always b.sometimes c.never

Mathematics
2 answers:
xenn [34]3 years ago
8 0
14+3x-7= 7x+7-4x

Combine like terms
7+3x=3x+7

Since the equations are the same, it is always true.
BaLLatris [955]3 years ago
3 0

Answer:  The correct option is (a) always.

Step-by-step explanation:  We are given to decide whether the following equation is always true, sometimes true or never true :

14+3x-7=7x+7-4x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To check the given equation, we must try to simplify the equation.

From equation (i), we have

14+3x-7=7x+7-4x\\\\\Rightarrow 7+3x=7+3x\\\\\Rightarrow 0=0.

Since the result 0 = 0 is always true, so whatever be the value of x, the given equation is always true.

Option (a) is CORRECT.

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When using the rational root theorem, which of the following is a possible root of the polynomial function below? f(x)=2x^2-4x+9
Norma-Jean [14]

The only option that meets the root theorem is option b.

<h3>which of the following is a possible root of the polynomial function below?</h3>

The polynomial function is:

f(x) = 2x^2 - 4x + 9

The rational root theorem says that if a root is a rational number, then the leading coefficient must be divisible by the denominator of the rational number and the constant term must be divisible by the numerator.

In this case, the constant is 9, and the only option such that the constant is divisible by the numerator is option b: 3

Where 3 is a rational number:

3 = 3/1

The numerator is 3 (which divides 9) and the denominator is 1 (which divides the leading coefficient 9. (notice that it meets the theorem, but it is not an actual root).

If you want to learn more about polynomials.

brainly.com/question/4142886

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3 0
2 years ago
Debra borrowed $8000 at a rate of 18% compounded semiannually. Assuming she makes no payment, how much will she owe after 9 year
Marina CMI [18]

Answer:

She owe $37736.96 after 9 years .

Step-by-step explanation:

Debra borrowed $8000 at a rate of 18% compounded semiannually

We are supposed to find how much will she owe after 9 years

Principal = 8000

Rate of interest = 18% =0.18

No. of compounds per year = 2

Time = 9 years

Formula : A= P(1+\frac{r}{n})^{nt}

Substitute the values in the formula :

A= 8000(1+\frac{0.18}{2})^{2 \times 9}

A= 37736.96

Hence She owe $37736.96 after 9 years .

5 0
3 years ago
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Zolol [24]

Answer:

Step-by-step explanation:

3x-4<8

3x<12

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3 years ago
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Answer:

Step-by-step explanation:

7 0
2 years ago
If we flip an unfair coin, suppose the probability to get a 'Head' is 0.6 each time. In a random sample of 75 tosses, let p deno
Lerok [7]

Answer:

Step-by-step explanation:

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3 years ago
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