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3 years ago

How do you do 4x - 9 = 6x - 13? what do you subtract from both sides?

Mathematics

2 answers:

ohaa [14]3 years ago

8 0

To start, you need to subtract 4x from both sides, that way, x is one one sid of the equation.

aleksley [76]3 years ago

8 0

Simple....

you have: 4x-9=6x-13

-->>Isolate the variable..(x)

4x-9=6x-13
-4x -4x

-9=2x-13
+13 +13

4=2x

2=x

Plug it in..to make sure it is correct.....

4(2)-9=6(2)-13

8-9=12-13

-1=-1

Correct.

Thus, your answer.

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What are the coordinates of the hole in the graph of the function f(x) ?

Vinvika [58]

ANSWER

$(3, \infty )$

EXPLANATION

The given function is

$f(x) = \frac{ {x}^{2} - 9}{x - 3}$

When we plug in x=3 into this function, we obtain,

$f(3) = \frac{0}{0}$

This means that the function is discontinuous at x=3.

We need to simplify the function to obtain,

$f(x) = \frac{(x - 3)(x + 3)}{(x - 3)}$

This implies that,

$f(x) = x + 3$

The graph this function is a straight line that is continuous everywhere.

To graph

$f(x) = \frac{ {x}^{2} - 9}{x - 3}$
we draw the graph of

$f(x) = x + 3$
and leave a hole at x=3.

See diagram in attachment.

Hence the coordinates of hole is

$(3, \infty )$

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Norma-Jean [14]

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jonny [76]

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pickupchik [31]

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2 years ago

For the polynomial x5 – 2x6 + 3, which of these statement(s) is true? Select all that apply A. The polynomial is a trinomial. B.

Evgen [1.6K]

Answer:

A, B and D

Step-by-step explanation:

A. The polynomial is a trinomial.

A trinomial refers to a polynomial with three terms. This option is correct.

B. The degree of the polynomial is 6.

Degree refers to the highest power in the polynomial. This option is correct.

C. The leading coefficient is 1

This is false. The leading coefficient is the coefficient of the variable bearing the degree of the polynomial. This is wrong.

D. Written in standard form, the polynomial is –2x6 + x5 + 3.

This is correct.

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3 years ago