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3 years ago

Which of the following trigonometric expressions represents an inverse function?

Mathematics

2 answers:

Makovka662 [10]3 years ago

4 0

$tan^{-2}$ (x°)

11111nata11111 [884]3 years ago

3 0

Answer:

Step-by-step explanation:

Actually, it's none of these. The inverse function must be written as follows:

-1

tan x

In other words, the "-1" that represents "inverse function" must be written as a superscript.

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3 years ago

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3 years ago

Sixty seven percent of the employees in a company have managerial positions, and 58 percent of the employees in the company have

Kazeer [188]

Answer: The proportion of employees who either have MBAs or are managers are 0.58.

Step-by-step explanation:

Since we have given that

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Probability of managers having MBA degrees = 67%

So, using probability formulas, we get that

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3 years ago

Which of the following best describes the solution to the system of equations below?

OverLord2011 [107]

Answer: OPTION A

Step-by-step explanation:

The equation of the line in slope-intercept form is:

$y=mx+b$

Where m is the slope and b the y-intercept.

Solve for y from each equation:

$\left \{ {{5y=-4x+7} \atop {10y=-8x+14}} \right.\\\\\left \{ {{y=\frac{-4}{5}x+\frac{7}{5}} \atop {y=\frac{-8}{10}x+\frac{14}{10}}} \right.\\\\\left \{ {{y=\frac{-4}{5}x+\frac{7}{5}} \atop {y=\frac{-4}{5}x+\frac{7}{5}}} \right.$

As you can see the slope and the y-intercept of each equation are equal, this means that both are the exact same line. Therefore, you can conclude that the system has infinitely many solutions.

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3 years ago