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3 years ago

Are integers_____ rational numbers? Always Sometimes Never

2 answers:

8 0

All natural numbers, whole numbers, and integers are rationals, but not all rational numbers are natural numbers, whole numbers, or integers.

Alexandra [31]3 years ago

4 0

Answer:

sometimes because it depends on the sign whether it's negative or positive

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What is the scale factor of figure a to figure b

Whitepunk [10]

Answer:

2:5

Step-by-step explanation:

The ratio of a dimension on Figure B to the corresponding dimension on Figure A is ...

4:10 = 8.6:21.5 = 10:25 = 2:5 or 1:2.5

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In such problems, it isn't clear if the desired answer is the ratio of two integers or if it is 1 : (something). We have expressed it both ways, so you can use the answer that matches your requirement.

7 0

3 years ago

Given f of x is equal to the quantity x minus 4 end quantity divided by the quantity x squared plus 13x plus 36 end quantity, wh

gavmur [86]

The simplified expression of the function $f(x) =\dfrac{x-4}{x^2+13x+36}$ is

$f(x) = \dfrac{x-4}{(x+9)(x+4)}$ . f(x) is increasing for all x > –4.The correct answer is option C.

<h3>What is a function?</h3>

A function is defined as a relation between the set of inputs having exactly one output each.

The function expression is given as:

$f(x) =\dfrac{x-4}{x^2+13x+36}$

Expand the denominator

$f(x) =\dfrac{x-4}{x^2+4x +9x+36}$

Factorize the denominator

$f(x) =\dfrac{x-4}{x(x+4)+9(x+4)}$

Factor out x + 9

$f(x) = \dfrac{x-4}{(x+9)(x+4)}$

The simplified expression of the function $f(x) =\dfrac{x-4}{x^2+13x+36}$ is

$f(x) = \dfrac{x-4}{(x+9)(x+4)}$ . f(x) is increasing for all x > –4

Read more about functions at:

brainly.com/question/1851758

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8 0

2 years ago

8 ^ x * 16 ^ x - 1 equals 1

Lana71 [14]

Answer:

${8}^{x} \times {16}^{x } - 1 = 1 \\ {2}^{3x} \times {2}^{4x} = 1 + 1 \\ {2}^{7x} = {2}^{1} \\ 7x = 1 \\ x = \frac{1}{7}$

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3 years ago

Please Help, 20 Points !!

Svetllana [295]

Answer:

the value of x is 5 :) lalal

3 0

3 years ago

Find the solution to the system of equations below

djverab [1.8K]

Answer:

(4,7)

Step-by-step explanation:

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3 years ago