All categories

2 years ago

20 points Answer correct

Mathematics

1 answer:

Burka [1]2 years ago

6 0

Answer:

Step-by-step explanation:

sin25=x/18

x=0.4*18=7.6

You might be interested in

Determine the domain of the function (fog)(x) where f(x)=3x-1/x-4 and g(x)=x+1/x

Katarina [22]

Answer: (-∞,-1) ∪ (0,+∞)

Step-by-step explanation: The representation fog(x) is a representation of composite function, meaning one depends on the other.

In this case, fog(x) means:

fog(x) = f(g(x))

fog(x) = $3(x+\frac{1}{x} )-\frac{1}{x+\frac{1}{x} } -4$

$fog(x)=3x+\frac{3}{x} -\frac{1}{\frac{x^{2}+x}{x} } -4$

$fog(x)=3x+\frac{3}{x} -\frac{x}{x^{2}+x} -4$

$fog(x)=\frac{3x^{2}(x^{2}+x)+3(x^{2}+x)-x-4x(x^{2}+x)}{x(x^{2}+x)}$

$fog(x)=\frac{3x^{4}+3x^{3}+3x^{2}+3x-x-4x^{3}+4x^{2}}{x(x^{2}+x)}$

$fog(x)=\frac{3x^{4}-x^{3}-x^{2}+2x}{x(x^{2}+x)}$

This is the function fog(x).

The domain of a function is all the values the independent variable can assume.

For fog(x), denominator can be zero, so:

$x(x^{2}+x) \neq 0$

If x = 0, the function doesn't exist.

$x^{2}+x \neq0$

$x(x+1) \neq0$

$x+1\neq0$

$x\neq-1$

Therefore, the domain of this function is: -∞ < -1 or x > 0

5 0

3 years ago

A man walks iinto a store with 25.50 and walks out with 5.25 how much did he spend?

san4es73 [151]

He spent exactly 20.25, so it's A.

7 0

3 years ago

Read 2 more answers

What is the vertex of f(x) = (x - 7)?

valina [46]

Answer: This equation does not have a vertex.

If the equation is not curved or composed of two straight lines it does not have a vertex.

If you need further explanation let me know. :)

3 0

3 years ago

Find the median and mode of the following data:

jekas [21]

A is 4 and b is 63 have a good day

4 0

2 years ago

Read 2 more answers

0.18 ( ) 0.26 which is greater

Naddika [18.5K]

Answer: 0.26

Step-by-step explanation: 0.26 because it has a greater value, nothing much to solve unless im missing something.

if I am missing something please comment on my answer so I can help you further with your question.

3 0

2 years ago

Read 2 more answers